March 2019 - LKP - Ml01.01.Org

[mm] 71ee870ccb: will-it-scale.per_process_ops -2.9% regression

by kernel test robot

Greeting, FYI, we noticed a -2.9% regression of will-it-scale.per_process_ops due to commit: commit: 71ee870ccb768a5019ff8ebeb47cc9f062559a7a ("[RFC PATCH] mm: readahead: add readahead_shift into backing device") url: https://github.com/0day-ci/linux/commits/Martin-Liu/mm-readahead-add-read... in testcase: will-it-scale on test machine: 88 threads Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz with 64G memory with following parameters: nr_task: 50% mode: process test: poll2 cpufreq_governor: performance test-description: Will It Scale takes a testcase and runs it from 1 through to n parallel copies to see if the testcase will scale. It builds both a process and threads based test in order to see any differences between the two. test-url: https://github.com/antonblanchard/will-it-scale Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml ========================================================================================= compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase: gcc-7/performance/x86_64-rhel-7.6/process/50%/debian-x86_64-2018-04-03-no-ucode.cgz/lkp-bdw-ep3d/poll2/will-it-scale commit: v5.1-rc2 71ee870ccb ("mm: readahead: add readahead_shift into backing device") v5.1-rc2 71ee870ccb768a5019ff8ebeb47 ---------------- --------------------------- fail:runs %reproduction fail:runs | | | :5 40% 2:4 dmesg.BUG:unable_to_handle_kernel :5 40% 2:4 dmesg.Kernel_panic-not_syncing:Fatal_exception :5 40% 2:4 dmesg.Oops:#[##] :5 40% 2:4 dmesg.RIP:ondemand_readahead %stddev %change %stddev \ | \ 330269 -2.9% 320782 will-it-scale.per_process_ops 14531906 -2.9% 14114429 will-it-scale.workload 38.92 ± 10% +2.3% 39.81 ± 10% boot-time.boot 6108941 ±121% -99.4% 38017 ± 3% cpuidle.C1.usage 53094 ± 3% +6.3% 56436 ± 6% meminfo.Shmem 6106659 ±121% -99.4% 36364 ± 3% turbostat.C1 245.02 -3.1% 237.54 turbostat.PkgWatt 16384 ± 9% -15.8% 13797 numa-vmstat.node0.nr_slab_unreclaimable 2715 ± 18% +30.4% 3542 numa-vmstat.node1.nr_mapped 8641 ± 11% +14.4% 9889 ± 5% numa-vmstat.node1.nr_slab_reclaimable 14101 ± 12% +19.9% 16907 numa-vmstat.node1.nr_slab_unreclaimable 65541 ± 9% -15.8% 55189 numa-meminfo.node0.SUnreclaim 34563 ± 11% +14.5% 39558 ± 5% numa-meminfo.node1.KReclaimable 34563 ± 11% +14.5% 39558 ± 5% numa-meminfo.node1.SReclaimable 56405 ± 12% +19.9% 67631 numa-meminfo.node1.SUnreclaim 90969 ± 12% +17.8% 107190 numa-meminfo.node1.Slab 28.50 ± 21% +7.2 35.70 ± 22% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64 28.50 ± 21% +7.2 35.71 ± 22% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64 28.50 ± 21% +7.2 35.71 ± 22% perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64 29.06 ± 22% +7.2 36.28 ± 22% perf-profile.calltrace.cycles-pp.secondary_startup_64 28.43 ± 22% +7.2 35.66 ± 22% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64 28.32 ± 22% +7.3 35.62 ± 22% perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary 68918 +1.6% 70055 proc-vmstat.nr_active_anon 4420 +1.1% 4471 proc-vmstat.nr_inactive_anon 13272 ± 3% +6.3% 14110 ± 6% proc-vmstat.nr_shmem 68918 +1.6% 70055 proc-vmstat.nr_zone_active_anon 4420 +1.1% 4471 proc-vmstat.nr_zone_inactive_anon 12592 ± 5% +9.8% 13822 ± 8% proc-vmstat.pgactivate 22.97 ± 16% +15.2% 26.46 ± 4% sched_debug.cfs_rq:/.load_avg.avg 31.76 ± 68% +91.5% 60.83 ± 16% sched_debug.cfs_rq:/.removed.load_avg.stddev 1465 ± 68% +90.9% 2798 ± 16% sched_debug.cfs_rq:/.removed.runnable_sum.stddev 90.67 ± 81% +122.4% 201.67 ± 28% sched_debug.cfs_rq:/.removed.util_avg.max 13.91 ± 72% +96.0% 27.27 ± 24% sched_debug.cfs_rq:/.removed.util_avg.stddev 161427 ± 2% +53.9% 248474 ± 23% sched_debug.cpu.avg_idle.stddev 32.13 ± 11% -17.8% 26.42 ± 3% sched_debug.cpu.cpu_load[3].max 319.40 ± 7% +9.5% 349.67 ± 3% sched_debug.cpu.nr_switches.min 16306 ± 32% +65.7% 27026 ± 23% softirqs.CPU11.RCU 19898 ± 15% +17.4% 23362 ± 12% softirqs.CPU25.RCU 25900 ± 19% -46.7% 13796 ± 39% softirqs.CPU38.RCU 18084 ± 26% +58.8% 28722 ± 6% softirqs.CPU39.RCU 90524 ± 2% +37.1% 124077 ± 24% softirqs.CPU39.TIMER 19146 ± 30% +21.8% 23323 ± 33% softirqs.CPU4.RCU 4625 ± 4% +336.9% 20209 ± 76% softirqs.CPU45.SCHED 4695 ± 2% +401.2% 23537 ± 79% softirqs.CPU61.SCHED 89544 +36.5% 122247 ± 26% softirqs.CPU61.TIMER 4691 ± 2% +404.2% 23656 ± 80% softirqs.CPU65.SCHED 89357 +46.9% 131246 ± 32% softirqs.CPU65.TIMER 10339 ± 4% -20.7% 8197 ± 13% softirqs.CPU66.RCU 4555 ± 3% +337.5% 19929 ± 76% softirqs.CPU66.SCHED 13869 ± 37% -39.3% 8419 ± 2% softirqs.CPU78.RCU 12163 ± 34% -33.2% 8125 ± 4% softirqs.CPU80.RCU 4660 ± 3% +331.1% 20087 ± 77% softirqs.CPU80.SCHED 5222 ± 24% +352.1% 23611 ± 79% softirqs.CPU82.SCHED 90496 ± 3% +35.0% 122171 ± 27% softirqs.CPU82.TIMER 9935 ± 6% -19.9% 7958 ± 8% softirqs.CPU84.RCU 4653 ± 4% +325.4% 19793 ± 76% softirqs.CPU84.SCHED 9701 ± 6% -21.8% 7582 ± 8% softirqs.CPU85.RCU 4643 ± 4% +325.2% 19741 ± 76% softirqs.CPU85.SCHED 0.08 ± 4% +11.7% 0.09 ± 3% perf-stat.i.MPKI 3.464e+10 -2.9% 3.365e+10 perf-stat.i.branch-instructions 0.27 +0.0 0.27 perf-stat.i.branch-miss-rate% 206283 ± 6% +10.1% 227086 ± 7% perf-stat.i.cache-misses 12679443 ± 4% +9.2% 13840943 ± 3% perf-stat.i.cache-references 0.75 +3.0% 0.78 perf-stat.i.cpi 13397222 -5.7% 12635139 perf-stat.i.dTLB-load-misses 3.619e+10 -2.9% 3.515e+10 perf-stat.i.dTLB-loads 1.854e+10 -2.3% 1.811e+10 perf-stat.i.dTLB-stores 1.636e+11 -2.9% 1.589e+11 perf-stat.i.instructions 1.33 -2.9% 1.29 perf-stat.i.ipc 24604 ± 32% +13.2% 27859 ± 26% perf-stat.i.node-stores 0.08 ± 4% +12.4% 0.09 ± 3% perf-stat.overall.MPKI 0.26 +0.0 0.27 perf-stat.overall.branch-miss-rate% 0.75 +3.0% 0.78 perf-stat.overall.cpi 1.33 -2.9% 1.29 perf-stat.overall.ipc 3.452e+10 -2.9% 3.353e+10 perf-stat.ps.branch-instructions 205685 ± 6% +10.1% 226440 ± 7% perf-stat.ps.cache-misses 12640358 ± 4% +9.2% 13798889 ± 3% perf-stat.ps.cache-references 13352001 -5.7% 12592542 perf-stat.ps.dTLB-load-misses 3.606e+10 -2.9% 3.503e+10 perf-stat.ps.dTLB-loads 1.847e+10 -2.3% 1.805e+10 perf-stat.ps.dTLB-stores 1.63e+11 -2.9% 1.584e+11 perf-stat.ps.instructions 24533 ± 32% +13.2% 27780 ± 26% perf-stat.ps.node-stores 4.923e+13 -2.9% 4.782e+13 perf-stat.total.instructions 659.20 ± 14% -33.4% 439.00 ± 5% interrupts.32:PCI-MSI.3145729-edge.eth0-TxRx-0 193.20 ± 13% +46.5% 283.00 ± 4% interrupts.35:PCI-MSI.3145732-edge.eth0-TxRx-3 341.60 +9.0% 372.50 interrupts.9:IO-APIC.9-fasteoi.acpi 926.20 ± 57% -59.0% 380.00 interrupts.CPU0.RES:Rescheduling_interrupts 341.60 +9.0% 372.50 interrupts.CPU1.9:IO-APIC.9-fasteoi.acpi 2403 ± 32% +123.2% 5363 ± 46% interrupts.CPU1.NMI:Non-maskable_interrupts 2403 ± 32% +123.2% 5363 ± 46% interrupts.CPU1.PMI:Performance_monitoring_interrupts 2983 ± 52% +44.4% 4309 ± 32% interrupts.CPU10.NMI:Non-maskable_interrupts 2983 ± 52% +44.4% 4309 ± 32% interrupts.CPU10.PMI:Performance_monitoring_interrupts 659.20 ± 14% -33.4% 439.00 ± 5% interrupts.CPU11.32:PCI-MSI.3145729-edge.eth0-TxRx-0 60.80 ± 91% +1764.3% 1133 ± 92% interrupts.CPU11.RES:Rescheduling_interrupts 193.20 ± 13% +46.5% 283.00 ± 4% interrupts.CPU14.35:PCI-MSI.3145732-edge.eth0-TxRx-3 2401 ± 32% +79.0% 4299 ± 33% interrupts.CPU2.NMI:Non-maskable_interrupts 2401 ± 32% +79.0% 4299 ± 33% interrupts.CPU2.PMI:Performance_monitoring_interrupts 3289 ± 42% +107.2% 6814 ± 15% interrupts.CPU21.NMI:Non-maskable_interrupts 3289 ± 42% +107.2% 6814 ± 15% interrupts.CPU21.PMI:Performance_monitoring_interrupts 3275 ± 42% +108.5% 6829 ± 16% interrupts.CPU22.NMI:Non-maskable_interrupts 3275 ± 42% +108.5% 6829 ± 16% interrupts.CPU22.PMI:Performance_monitoring_interrupts 2404 ± 32% +79.0% 4305 ± 33% interrupts.CPU3.NMI:Non-maskable_interrupts 2404 ± 32% +79.0% 4305 ± 33% interrupts.CPU3.PMI:Performance_monitoring_interrupts 2940 ± 51% +46.3% 4301 ± 33% interrupts.CPU31.NMI:Non-maskable_interrupts 2940 ± 51% +46.3% 4301 ± 33% interrupts.CPU31.PMI:Performance_monitoring_interrupts 2368 ± 28% +81.8% 4304 ± 33% interrupts.CPU33.NMI:Non-maskable_interrupts 2368 ± 28% +81.8% 4304 ± 33% interrupts.CPU33.PMI:Performance_monitoring_interrupts 41.80 ± 77% +164.4% 110.50 ± 52% interrupts.CPU33.RES:Rescheduling_interrupts 2872 ± 26% +50.0% 4308 ± 32% interrupts.CPU34.NMI:Non-maskable_interrupts 2872 ± 26% +50.0% 4308 ± 32% interrupts.CPU34.PMI:Performance_monitoring_interrupts 2872 ± 25% +137.3% 6815 ± 15% interrupts.CPU35.NMI:Non-maskable_interrupts 2872 ± 25% +137.3% 6815 ± 15% interrupts.CPU35.PMI:Performance_monitoring_interrupts 2660 ± 18% +156.6% 6826 ± 16% interrupts.CPU36.NMI:Non-maskable_interrupts 2660 ± 18% +156.6% 6826 ± 16% interrupts.CPU36.PMI:Performance_monitoring_interrupts 40.60 ± 50% +134.0% 95.00 ± 36% interrupts.CPU38.RES:Rescheduling_interrupts 2395 ± 32% +79.5% 4300 ± 33% interrupts.CPU4.NMI:Non-maskable_interrupts 2395 ± 32% +79.5% 4300 ± 33% interrupts.CPU4.PMI:Performance_monitoring_interrupts 68.20 ± 33% +1063.5% 793.50 ± 12% interrupts.CPU4.RES:Rescheduling_interrupts 2986 ± 5% +129.2% 6843 ± 16% interrupts.CPU40.NMI:Non-maskable_interrupts 2986 ± 5% +129.2% 6843 ± 16% interrupts.CPU40.PMI:Performance_monitoring_interrupts 2984 ± 5% +128.6% 6821 ± 16% interrupts.CPU41.NMI:Non-maskable_interrupts 2984 ± 5% +128.6% 6821 ± 16% interrupts.CPU41.PMI:Performance_monitoring_interrupts 2991 ± 5% +43.9% 4305 ± 32% interrupts.CPU43.NMI:Non-maskable_interrupts 2991 ± 5% +43.9% 4305 ± 32% interrupts.CPU43.PMI:Performance_monitoring_interrupts 2392 ± 31% +79.8% 4302 ± 33% interrupts.CPU5.NMI:Non-maskable_interrupts 2392 ± 31% +79.8% 4302 ± 33% interrupts.CPU5.PMI:Performance_monitoring_interrupts 345.00 ±173% +382.3% 1664 ± 53% interrupts.CPU6.RES:Rescheduling_interrupts 1.20 ± 33% +4233.3% 52.00 ± 96% interrupts.CPU77.RES:Rescheduling_interrupts 471010 ± 6% +10.0% 518230 ± 10% interrupts.NMI:Non-maskable_interrupts 471010 ± 6% +10.0% 518230 ± 10% interrupts.PMI:Performance_monitoring_interrupts will-it-scale.per_process_ops 350000 +-+----------------------------------------------------------------+ O..+..O..+..O O +..+..O..O..+ O +..O..+..O..+..+..O..O..+..+..O 300000 +-+ : : : : | | : : : : | 250000 +-+ : : : : | | : : : : | 200000 +-+ : : : : | | : : : : | 150000 +-+ : : : : | | : : : : | 100000 +-+ : : : : | | : : : : | 50000 +-+ : :: | | : : | 0 +-+O-----O--------O--O--------O------O-----O-----O--O--------O--O--+ will-it-scale.workload 1.6e+07 +-+---------------------------------------------------------------+ |..+..+..+..+ +..+..+..+..+ +..+..+..+..+..+..+..+..+..+..| 1.4e+07 O-+ O O O : O O : O : O O O O O 1.2e+07 +-+ : : : : | | : : : : | 1e+07 +-+ : : : : | | : : : : | 8e+06 +-+ : : : : | | : : : : | 6e+06 +-+ : : : : | 4e+06 +-+ : : : : | | : : : : | 2e+06 +-+ : : | | : : | 0 +-+O-----O--------O--O--------O-----O-----O-----O--O--------O--O--+ [*] bisect-good sample [O] bisect-bad sample Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Rong Chen

1 year, 7 months

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[auxdisplay] 24c764abfd: kmsg.parport#:cannot_grant_exclusive_access_for_device_pps_parport

by kernel test robot

FYI, we noticed the following commit (built with gcc-5): commit: 24c764abfd0d4b6e8e33c3818b668edbb4936d6f ("auxdisplay: deconfuse configuration") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master in testcase: locktorture with following parameters: runtime: 300s test: default test-description: This torture test consists of creating a number of kernel threads which acquire the lock and hold it for specific amount of time, thus simulating different critical region behaviors. test-url: https://www.kernel.org/doc/Documentation/locking/locktorture.txt on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 2G caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): [ 10.294087 ] random: systemd: uninitialized urandom read (16 bytes read) [ 10.298543 ] random: systemd: uninitialized urandom read (16 bytes read) Mounting RPC Pipe File System... Mounting Debug File System... Starting Journal Service... Starting Load Kernel Modules... [ 10.503136 ] random: fast init done Starting Remount Root and Kernel File Systems... Mounting FUSE Control File System... Starting Apply Kernel Variables... Mounting Configuration File System... Starting Create Static Device Nodes in /dev... Starting Load/Save Random Seed... Starting udev Coldplug all Devices... Starting Preprocess NFS configuration... Starting Raise network interfaces... Starting udev Kernel Device Manager... Starting Flush Journal to Persistent Storage... Starting Create Volatile Files and Directories... Starting Network Time Synchronization... Starting RPC bind portmap service... Starting Update UTMP about System Boot/Shutdown... [ 11.126278 ] _warn_unseeded_randomness: 391 callbacks suppressed [ 11.126285 ] random: get_random_u64 called from arch_rnd+0x20/0x37 with crng_init=1 [ 11.127744 ] random: get_random_u64 called from load_elf_binary+0x330/0x13fa with crng_init=1 [ 11.128656 ] random: get_random_u64 called from arch_rnd+0x20/0x37 with crng_init=1 [ 12.271342 ] _warn_unseeded_randomness: 26 callbacks suppressed [ 12.271348 ] random: get_random_u64 called from arch_rnd+0x20/0x37 with crng_init=1 [ 12.272835 ] random: get_random_u64 called from load_elf_binary+0x330/0x13fa with crng_init=1 [ 12.272840 ] random: get_random_u32 called from arch_align_stack+0x28/0x3a with crng_init=1 Starting Permit User Sessions... [ 12.359892 ] parport_pc 00:04: reported by Plug and Play ACPI [ 12.361256 ] parport0: PC-style at 0x378, irq 7 [PCSPP(,...)] Starting LSB: Execute the kexec -e command to reboot system... Starting Login Service... ••••••••• [ 12.488387 ] rtc_cmos 00:00: alarms up to one day, y3k, 114 bytes nvram, hpet irqs Starting System Logging Service... Starting LKP bootstrap... Starting /etc/rc.local Compatibility... Starting OpenBSD Secure Shell server... Starting LSB: Start and stop bmc-watchdog... [ 12.475680 ] rc.local[353]: PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/lkp/lkp/src/bin [ 12.676342 ] parport0: cannot grant exclusive access for device pps_parport [ 12.677670 ] pps_parport: couldn't register with parport0 [ 12.684501 ] parport_pc parport_pc.956: Unable to set coherent dma mask: disabling DMA [ 12.705830 ] parport_pc parport_pc.888: Unable to set coherent dma mask: disabling DMA [ 12.744332 ] parport_pc parport_pc.632: Unable to set coherent dma mask: disabling DMA [ 12.769682 ] Linux agpgart interface v0.103 Starting LSB: Load kernel image with kexec... [ 13.224353 ] PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 13.274820 ] _warn_unseeded_randomness: 338 callbacks suppressed [ 13.274827 ] random: get_random_u64 called from arch_rnd+0x20/0x37 with crng_init=1 [ 13.276289 ] random: get_random_u64 called from load_elf_binary+0x330/0x13fa with crng_init=1 [ 13.278156 ] random: get_random_u64 called from arch_rnd+0x20/0x37 with crng_init=1 [ 13.308315 ] [drm] Found bochs VGA, ID 0xb0c0. [ 13.308798 ] [drm] Framebuffer size 16384 kB @ 0xfd000000, mmio @ 0xfebf0000. [ 13.560302 ] AVX version of gcm_enc/dec engaged. [ 13.560812 ] AES CTR mode by8 optimization enabled To reproduce: # build kernel cd linux cp config-5.0.0-00006-g24c764a .config make HOSTCC=gcc-5 CC=gcc-5 ARCH=x86_64 olddefconfig make HOSTCC=gcc-5 CC=gcc-5 ARCH=x86_64 prepare make HOSTCC=gcc-5 CC=gcc-5 ARCH=x86_64 modules_prepare make HOSTCC=gcc-5 CC=gcc-5 ARCH=x86_64 SHELL=/bin/bash make HOSTCC=gcc-5 CC=gcc-5 ARCH=x86_64 bzImage git clone https://github.com/intel/lkp-tests.git cd lkp-tests find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email Thanks, Rong Chen

1 year, 7 months

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[vfs] 27eb9d500d: vm-scalability.median -19.4% regression

by kernel test robot

Greeting, FYI, we noticed a -19.4% regression of vm-scalability.median due to commit: commit: 27eb9d500d71d93e2b2f55c226bc1cc4ba53e9b0 ("vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API") https://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git mount-api-viro in testcase: vm-scalability on test machine: 88 threads Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz with 128G memory with following parameters: runtime: 300s size: 16G test: shm-pread-rand cpufreq_governor: performance test-description: The motivation behind this suite is to exercise functions and regions of the mm/ of the Linux kernel which are of interest to us. test-url: https://git.kernel.org/cgit/linux/kernel/git/wfg/vm-scalability.git/ In addition to that, the commit also has significant impact on the following tests: +------------------+-----------------------------------------------------------------------+ | testcase: change | vm-scalability: | | test machine | 104 threads Skylake with 192G memory | | test parameters | cpufreq_governor=performance | | | runtime=300s | | | size=2T | | | test=shm-xread-seq-mt | +------------------+-----------------------------------------------------------------------+ | testcase: change | vm-scalability: vm-scalability.median -6.9% regression | | test machine | 72 threads Intel(R) Xeon(R) Gold 6139 CPU @ 2.30GHz with 128G memory | | test parameters | cpufreq_governor=performance | | | runtime=300s | | | size=1T | | | test=lru-shm | | | ucode=0x200005a | +------------------+-----------------------------------------------------------------------+ | testcase: change | vm-scalability: vm-scalability.median 17.4% improvement | | test machine | 88 threads Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz with 128G memory | | test parameters | cpufreq_governor=performance | | | runtime=300s | | | size=256G | | | test=lru-shm-rand | +------------------+-----------------------------------------------------------------------+ | testcase: change | vm-scalability: vm-scalability.median -33.5% regression | | test machine | 72 threads Intel(R) Xeon(R) Gold 6139 CPU @ 2.30GHz with 128G memory | | test parameters | cpufreq_governor=performance | | | runtime=300s | | | size=16G | | | test=shm-pread-rand | | | ucode=0x200005a | +------------------+-----------------------------------------------------------------------+ | testcase: change | vm-scalability: vm-scalability.median 5.9% improvement | | test machine | 104 threads Skylake with 192G memory | | test parameters | cpufreq_governor=performance | | | runtime=300s | | | size=1T | | | test=lru-shm | +------------------+-----------------------------------------------------------------------+ Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml ========================================================================================= compiler/cpufreq_governor/kconfig/rootfs/runtime/size/tbox_group/test/testcase: gcc-7/performance/x86_64-rhel-7.6/debian-x86_64-2018-04-03.cgz/300s/16G/lkp-bdw-ep2/shm-pread-rand/vm-scalability commit: f568cf93ca ("vfs: Convert smackfs to use the new mount API") 27eb9d500d ("vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API") f568cf93ca0923a0 27eb9d500d71d93e2b2f55c226b ---------------- --------------------------- %stddev %change %stddev \ | \ 35.48 -48.9% 18.13 vm-scalability.free_time 58648 -19.4% 47257 vm-scalability.median 5152784 -19.7% 4135803 vm-scalability.throughput 345.44 -6.3% 323.69 vm-scalability.time.elapsed_time 345.44 -6.3% 323.69 vm-scalability.time.elapsed_time.max 65947509 -50.0% 32974469 vm-scalability.time.maximum_resident_set_size 1.362e+08 -50.0% 68087693 vm-scalability.time.minor_page_faults 8549 +1.3% 8656 vm-scalability.time.percent_of_cpu_this_job_got 5070 ± 2% -49.9% 2538 vm-scalability.time.system_time 24465 +4.2% 25484 vm-scalability.time.user_time 1.548e+09 -19.7% 1.244e+09 vm-scalability.workload 1584808 ± 72% -53.2% 742467 ± 8% cpuidle.C1.time 785475 ± 36% -53.3% 366683 ± 31% cpuidle.C6.usage 2.96 ± 3% -1.1 1.82 mpstat.cpu.all.idle% 16.68 -7.8 8.92 mpstat.cpu.all.sys% 80.35 +8.9 89.25 mpstat.cpu.all.usr% 9965020 ± 2% -44.0% 5578712 ± 5% numa-numastat.node0.local_node 9977872 -44.1% 5580748 ± 5% numa-numastat.node0.numa_hit 10122101 -52.6% 4801652 ± 6% numa-numastat.node1.local_node 10126532 -52.4% 4816911 ± 6% numa-numastat.node1.numa_hit 79.25 +11.0% 88.00 vmstat.cpu.us 64507804 -48.1% 33498560 vmstat.memory.cache 55730730 +65.3% 92097498 vmstat.memory.free 1073 -4.2% 1028 vmstat.system.cs 31.50 ± 8% -19.0% 25.50 ± 9% sched_debug.cpu.cpu_load[3].max 3.10 ± 19% -34.0% 2.04 ± 11% sched_debug.cpu.cpu_load[3].stddev 59.79 ± 6% -18.4% 48.78 ± 7% sched_debug.cpu.cpu_load[4].max 5.63 ± 8% -22.5% 4.36 ± 8% sched_debug.cpu.cpu_load[4].stddev 517.67 ± 5% -19.3% 417.56 ± 7% sched_debug.cpu.nr_switches.min 2709 +1.2% 2742 turbostat.Avg_MHz 22091 ± 95% -63.2% 8124 ± 27% turbostat.C1 774586 ± 36% -54.5% 352400 ± 33% turbostat.C6 1.23 ± 23% -35.1% 0.80 ± 15% turbostat.CPU%c1 0.85 ± 15% -46.8% 0.45 ± 11% turbostat.Pkg%pc2 26.30 +3.3% 27.17 turbostat.RAMWatt 4589533 -68.6% 1440882 meminfo.Active 4589118 -68.6% 1440465 meminfo.Active(anon) 64456373 -48.0% 33491887 meminfo.Cached 64265169 -49.2% 32665733 meminfo.Committed_AS 58888990 -47.2% 31073080 meminfo.Inactive 58887681 -47.2% 31071756 meminfo.Inactive(anon) 223071 -33.5% 148432 meminfo.KReclaimable 58833647 -47.3% 31017550 meminfo.Mapped 55029628 +66.1% 91387958 meminfo.MemAvailable 55536115 +65.5% 91931756 meminfo.MemFree 76356407 -47.7% 39960766 meminfo.Memused 10888435 -49.1% 5544617 meminfo.PageTables 223071 -33.5% 148432 meminfo.SReclaimable 63233823 -49.0% 32269411 meminfo.Shmem 353083 -21.7% 276412 meminfo.Slab 238010 -45.0% 131007 meminfo.max_used_kB 6.97 ± 11% -1.3 5.69 ± 5% perf-profile.calltrace.cycles-pp.irq_exit.smp_apic_timer_interrupt.apic_timer_interrupt 1.93 ± 50% -1.2 0.70 ± 93% perf-profile.calltrace.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork 1.94 ± 50% -1.2 0.72 ± 92% perf-profile.calltrace.cycles-pp.worker_thread.kthread.ret_from_fork 2.25 ± 41% -1.1 1.17 ± 42% perf-profile.calltrace.cycles-pp.ret_from_fork 2.25 ± 41% -1.1 1.17 ± 42% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork 5.80 ± 10% -1.0 4.75 ± 7% perf-profile.calltrace.cycles-pp.__softirqentry_text_start.irq_exit.smp_apic_timer_interrupt.apic_timer_interrupt 1.97 ± 11% -0.6 1.42 ± 8% perf-profile.calltrace.cycles-pp.__update_load_avg_cfs_rq.task_tick_fair.scheduler_tick.update_process_times.tick_sched_handle 2.75 ± 4% -0.5 2.28 ± 5% perf-profile.calltrace.cycles-pp.native_write_msr.lapic_next_deadline.clockevents_program_event.hrtimer_interrupt.smp_apic_timer_interrupt 3.34 ± 4% -0.4 2.90 ± 5% perf-profile.calltrace.cycles-pp.lapic_next_deadline.clockevents_program_event.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt 1.77 ± 4% -0.2 1.54 ± 11% perf-profile.calltrace.cycles-pp.run_timer_softirq.__softirqentry_text_start.irq_exit.smp_apic_timer_interrupt.apic_timer_interrupt 1.67 ± 10% -0.2 1.44 ± 13% perf-profile.calltrace.cycles-pp.rcu_sched_clock_irq.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues 0.76 ± 5% -0.1 0.62 ± 10% perf-profile.calltrace.cycles-pp.ktime_get.perf_mux_hrtimer_handler.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt 0.51 ± 58% +0.7 1.25 ± 8% perf-profile.calltrace.cycles-pp.rb_next.timerqueue_del.__remove_hrtimer.__hrtimer_run_queues.hrtimer_interrupt 1.43 ± 20% +0.9 2.35 ± 8% perf-profile.calltrace.cycles-pp.timerqueue_del.__remove_hrtimer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt 2.17 ± 16% +1.0 3.18 ± 9% perf-profile.calltrace.cycles-pp.__remove_hrtimer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt 2.16 ± 19% +1.0 3.19 ± 13% perf-profile.calltrace.cycles-pp.irq_enter.smp_apic_timer_interrupt.apic_timer_interrupt 1696 ± 13% -15.2% 1438 ± 3% slabinfo.UNIX.active_objs 1696 ± 13% -15.2% 1438 ± 3% slabinfo.UNIX.num_objs 3934 ± 4% -15.1% 3340 ± 7% slabinfo.eventpoll_pwq.active_objs 3934 ± 4% -15.1% 3340 ± 7% slabinfo.eventpoll_pwq.num_objs 21089 ± 5% -7.5% 19504 ± 2% slabinfo.filp.active_objs 21107 ± 5% -7.2% 19587 ± 2% slabinfo.filp.num_objs 9028 ± 5% -6.8% 8417 ± 2% slabinfo.kmalloc-512.active_objs 4303 ± 5% -15.3% 3646 ± 5% slabinfo.kmalloc-rcl-64.active_objs 4303 ± 5% -15.3% 3646 ± 5% slabinfo.kmalloc-rcl-64.num_objs 1911 ± 4% -10.7% 1708 ± 4% slabinfo.kmalloc-rcl-96.active_objs 1911 ± 4% -10.7% 1708 ± 4% slabinfo.kmalloc-rcl-96.num_objs 272197 -46.6% 145406 slabinfo.radix_tree_node.active_objs 4921 -46.9% 2612 slabinfo.radix_tree_node.active_slabs 275638 -46.9% 146318 slabinfo.radix_tree_node.num_objs 4921 -46.9% 2612 slabinfo.radix_tree_node.num_slabs 362.50 ± 9% -24.7% 273.00 ± 17% slabinfo.skbuff_fclone_cache.active_objs 362.50 ± 9% -24.7% 273.00 ± 17% slabinfo.skbuff_fclone_cache.num_objs 1142643 -68.5% 360168 proc-vmstat.nr_active_anon 1371004 +66.3% 2279988 proc-vmstat.nr_dirty_background_threshold 2745366 +66.3% 4565553 proc-vmstat.nr_dirty_threshold 16116153 -48.1% 8369140 proc-vmstat.nr_file_pages 13884480 +65.6% 22987632 proc-vmstat.nr_free_pages 14728364 -47.3% 7763800 proc-vmstat.nr_inactive_anon 14714990 -47.3% 7750437 proc-vmstat.nr_mapped 2720411 -49.1% 1385255 proc-vmstat.nr_page_table_pages 15810254 -49.0% 8063260 proc-vmstat.nr_shmem 55779 -33.5% 37096 proc-vmstat.nr_slab_reclaimable 32502 -1.6% 31995 proc-vmstat.nr_slab_unreclaimable 1142643 -68.5% 360168 proc-vmstat.nr_zone_active_anon 14728364 -47.3% 7763800 proc-vmstat.nr_zone_inactive_anon 20128841 -48.2% 10422506 proc-vmstat.numa_hit 20111549 -48.3% 10405203 proc-vmstat.numa_local 16498703 -50.0% 8254888 proc-vmstat.pgactivate 20220083 -48.1% 10494413 proc-vmstat.pgalloc_normal 1.371e+08 -49.7% 68917706 proc-vmstat.pgfault 19856424 -49.8% 9959314 ± 3% proc-vmstat.pgfree 576965 ± 2% -66.5% 193251 ± 4% numa-vmstat.node0.nr_active_anon 7984459 -46.0% 4314633 ± 3% numa-vmstat.node0.nr_file_pages 6994491 ± 2% +60.4% 11221928 ± 2% numa-vmstat.node0.nr_free_pages 7288285 -45.1% 4000865 ± 3% numa-vmstat.node0.nr_inactive_anon 7280756 -45.2% 3990345 ± 3% numa-vmstat.node0.nr_mapped 1339535 ± 7% -41.5% 783256 ± 18% numa-vmstat.node0.nr_page_table_pages 7829898 -46.9% 4159908 ± 3% numa-vmstat.node0.nr_shmem 576964 ± 2% -66.5% 193251 ± 4% numa-vmstat.node0.nr_zone_active_anon 7288285 -45.1% 4000865 ± 3% numa-vmstat.node0.nr_zone_inactive_anon 10058590 ± 2% -42.2% 5818668 ± 5% numa-vmstat.node0.numa_hit 10045466 ± 2% -42.1% 5816443 ± 5% numa-vmstat.node0.numa_local 579988 -70.6% 170402 ± 3% numa-vmstat.node1.nr_active_anon 8125385 -50.1% 4052654 ± 3% numa-vmstat.node1.nr_file_pages 6897539 ± 2% +70.6% 11767440 ± 2% numa-vmstat.node1.nr_free_pages 7419455 -49.4% 3757603 ± 3% numa-vmstat.node1.nr_inactive_anon 7413582 -49.4% 3754757 ± 3% numa-vmstat.node1.nr_mapped 1379651 ± 6% -56.4% 601611 ± 23% numa-vmstat.node1.nr_page_table_pages 7974047 -51.1% 3901499 ± 3% numa-vmstat.node1.nr_shmem 29269 ± 31% -55.5% 13024 ± 53% numa-vmstat.node1.nr_slab_reclaimable 579988 -70.6% 170402 ± 3% numa-vmstat.node1.nr_zone_active_anon 7419455 -49.4% 3757603 ± 3% numa-vmstat.node1.nr_zone_inactive_anon 10114627 ± 2% -50.5% 5007129 ± 6% numa-vmstat.node1.numa_hit 9935234 ± 2% -51.5% 4816878 ± 6% numa-vmstat.node1.numa_local 2309540 ± 2% -66.6% 772196 ± 4% numa-meminfo.node0.Active 2309333 ± 2% -66.6% 771828 ± 4% numa-meminfo.node0.Active(anon) 110938 ± 15% -22.2% 86295 ± 16% numa-meminfo.node0.AnonHugePages 31924208 -46.0% 17242697 ± 3% numa-meminfo.node0.FilePages 29138719 -45.1% 15989448 ± 3% numa-meminfo.node0.Inactive 29138061 -45.1% 15988774 ± 3% numa-meminfo.node0.Inactive(anon) 29107588 -45.2% 15946271 ± 3% numa-meminfo.node0.Mapped 27989020 ± 2% +60.5% 44909537 ± 2% numa-meminfo.node0.MemFree 37878262 -44.7% 20957746 ± 5% numa-meminfo.node0.MemUsed 5360132 ± 7% -41.6% 3129116 ± 18% numa-meminfo.node0.PageTables 31305964 -46.9% 16623796 ± 3% numa-meminfo.node0.Shmem 2321613 -70.7% 680488 ± 3% numa-meminfo.node1.Active 2321405 -70.7% 680440 ± 3% numa-meminfo.node1.Active(anon) 32488297 -50.2% 16194282 ± 3% numa-meminfo.node1.FilePages 29663768 -49.4% 15015880 ± 3% numa-meminfo.node1.Inactive 29663115 -49.4% 15015232 ± 3% numa-meminfo.node1.Inactive(anon) 117054 ± 31% -55.5% 52077 ± 53% numa-meminfo.node1.KReclaimable 29639530 -49.4% 15003596 ± 3% numa-meminfo.node1.Mapped 27600077 ± 2% +70.6% 47091753 ± 2% numa-meminfo.node1.MemFree 38425162 -50.7% 18933485 ± 6% numa-meminfo.node1.MemUsed 5521649 ± 6% -56.5% 2402059 ± 23% numa-meminfo.node1.PageTables 117054 ± 31% -55.5% 52077 ± 53% numa-meminfo.node1.SReclaimable 31882947 -51.1% 15589660 ± 3% numa-meminfo.node1.Shmem 176591 ± 22% -40.0% 105918 ± 28% numa-meminfo.node1.Slab 224.75 ± 14% -21.7% 176.00 ± 3% interrupts.35:IR-PCI-MSI.1572865-edge.eth0-TxRx-1 383.00 ± 30% -36.4% 243.67 ± 43% interrupts.39:IR-PCI-MSI.1572869-edge.eth0-TxRx-5 213.50 ± 10% -9.6% 193.00 ± 14% interrupts.47:IR-PCI-MSI.1572877-edge.eth0-TxRx-13 227.50 ± 41% -30.0% 159.33 interrupts.56:IR-PCI-MSI.1572886-edge.eth0-TxRx-22 313942 -5.2% 297766 interrupts.CAL:Function_call_interrupts 224.75 ± 14% -21.7% 176.00 ± 3% interrupts.CPU1.35:IR-PCI-MSI.1572865-edge.eth0-TxRx-1 430.25 ± 40% +125.2% 969.00 ± 20% interrupts.CPU1.RES:Rescheduling_interrupts 213.50 ± 10% -9.6% 193.00 ± 14% interrupts.CPU13.47:IR-PCI-MSI.1572877-edge.eth0-TxRx-13 124.25 ± 39% +1451.7% 1928 ± 26% interrupts.CPU17.RES:Rescheduling_interrupts 358.75 ± 31% +365.7% 1670 ± 20% interrupts.CPU18.RES:Rescheduling_interrupts 227.50 ± 41% -30.0% 159.33 interrupts.CPU22.56:IR-PCI-MSI.1572886-edge.eth0-TxRx-22 2867 ±149% -94.5% 157.67 ± 57% interrupts.CPU25.RES:Rescheduling_interrupts 444.50 ± 72% -79.5% 91.00 ± 45% interrupts.CPU27.RES:Rescheduling_interrupts 387.25 ± 39% -51.8% 186.67 ± 83% interrupts.CPU29.RES:Rescheduling_interrupts 671.50 ± 85% -73.9% 175.33 ± 19% interrupts.CPU31.RES:Rescheduling_interrupts 392.00 ± 20% -74.1% 101.67 ± 68% interrupts.CPU35.RES:Rescheduling_interrupts 689.00 ± 58% -63.7% 250.00 ± 19% interrupts.CPU38.RES:Rescheduling_interrupts 713.75 ± 46% -65.2% 248.33 ± 67% interrupts.CPU41.RES:Rescheduling_interrupts 403.25 ± 36% -67.8% 130.00 ± 48% interrupts.CPU42.RES:Rescheduling_interrupts 4547 ± 10% -15.5% 3841 ± 2% interrupts.CPU43.RES:Rescheduling_interrupts 295.00 ± 64% -83.2% 49.67 ± 39% interrupts.CPU48.RES:Rescheduling_interrupts 383.00 ± 30% -36.4% 243.67 ± 43% interrupts.CPU5.39:IR-PCI-MSI.1572869-edge.eth0-TxRx-5 104.75 ± 44% +242.7% 359.00 ± 69% interrupts.CPU52.RES:Rescheduling_interrupts 7873 -33.0% 5276 ± 34% interrupts.CPU57.NMI:Non-maskable_interrupts 7873 -33.0% 5276 ± 34% interrupts.CPU57.PMI:Performance_monitoring_interrupts 7836 -49.6% 3950 interrupts.CPU58.NMI:Non-maskable_interrupts 7836 -49.6% 3950 interrupts.CPU58.PMI:Performance_monitoring_interrupts 7880 -49.8% 3957 interrupts.CPU59.NMI:Non-maskable_interrupts 7880 -49.8% 3957 interrupts.CPU59.PMI:Performance_monitoring_interrupts 6881 ± 24% -42.4% 3965 interrupts.CPU61.NMI:Non-maskable_interrupts 6881 ± 24% -42.4% 3965 interrupts.CPU61.PMI:Performance_monitoring_interrupts 6894 ± 24% -42.7% 3948 interrupts.CPU63.NMI:Non-maskable_interrupts 6894 ± 24% -42.7% 3948 interrupts.CPU63.PMI:Performance_monitoring_interrupts 34.75 ± 48% +1010.8% 386.00 ±113% interrupts.CPU63.RES:Rescheduling_interrupts 7879 -49.7% 3959 interrupts.CPU64.NMI:Non-maskable_interrupts 7879 -49.7% 3959 interrupts.CPU64.PMI:Performance_monitoring_interrupts 7828 -49.4% 3960 interrupts.CPU65.NMI:Non-maskable_interrupts 7828 -49.4% 3960 interrupts.CPU65.PMI:Performance_monitoring_interrupts 7889 -49.6% 3977 interrupts.CPU66.NMI:Non-maskable_interrupts 7889 -49.6% 3977 interrupts.CPU66.PMI:Performance_monitoring_interrupts 7862 -49.6% 3964 interrupts.CPU67.NMI:Non-maskable_interrupts 7862 -49.6% 3964 interrupts.CPU67.PMI:Performance_monitoring_interrupts 658.00 ±109% -97.8% 14.33 ± 52% interrupts.CPU67.RES:Rescheduling_interrupts 7845 -49.3% 3976 interrupts.CPU68.NMI:Non-maskable_interrupts 7845 -49.3% 3976 interrupts.CPU68.PMI:Performance_monitoring_interrupts 7875 -49.6% 3966 interrupts.CPU69.NMI:Non-maskable_interrupts 7875 -49.6% 3966 interrupts.CPU69.PMI:Performance_monitoring_interrupts 348.75 ± 33% +140.0% 837.00 ± 56% interrupts.CPU7.RES:Rescheduling_interrupts 7881 -49.9% 3952 interrupts.CPU70.NMI:Non-maskable_interrupts 7881 -49.9% 3952 interrupts.CPU70.PMI:Performance_monitoring_interrupts 27.33 +3.0% 28.16 perf-stat.i.MPKI 8.834e+09 -1.8% 8.673e+09 perf-stat.i.branch-instructions 0.15 ± 9% -0.1 0.10 ± 7% perf-stat.i.branch-miss-rate% 10588799 -28.6% 7555287 ± 2% perf-stat.i.branch-misses 63.58 +4.2 67.78 perf-stat.i.cache-miss-rate% 6.596e+08 +8.0% 7.125e+08 perf-stat.i.cache-misses 9.611e+08 +5.0% 1.009e+09 perf-stat.i.cache-references 1041 -4.5% 994.48 perf-stat.i.context-switches 2.378e+11 +1.3% 2.41e+11 perf-stat.i.cpu-cycles 50.46 ± 2% +22.5% 61.81 ± 7% perf-stat.i.cpu-migrations 662.21 ± 2% -23.0% 509.63 perf-stat.i.cycles-between-cache-misses 4.42 +0.4 4.87 perf-stat.i.dTLB-load-miss-rate% 4.707e+08 +12.4% 5.293e+08 perf-stat.i.dTLB-load-misses 3.295e+09 +5.5% 3.477e+09 perf-stat.i.dTLB-stores 81.54 ± 5% -6.0 75.55 perf-stat.i.iTLB-load-miss-rate% 883475 ± 2% -45.9% 477683 perf-stat.i.iTLB-load-misses 3.788e+10 -1.7% 3.723e+10 perf-stat.i.instructions 532634 ± 30% +47.4% 784855 perf-stat.i.instructions-per-iTLB-miss 0.17 -5.1% 0.16 perf-stat.i.ipc 394946 -46.4% 211876 perf-stat.i.minor-faults 1.827e+08 +19.8% 2.189e+08 ± 8% perf-stat.i.node-load-misses 2240951 -44.9% 1234844 perf-stat.i.node-store-misses 1555912 -44.5% 864154 ± 2% perf-stat.i.node-stores 394952 -46.4% 211884 perf-stat.i.page-faults 25.29 +7.0% 27.07 perf-stat.overall.MPKI 0.12 ± 2% -0.0 0.09 ± 3% perf-stat.overall.branch-miss-rate% 68.60 +2.0 70.57 perf-stat.overall.cache-miss-rate% 6.27 +3.2% 6.47 perf-stat.overall.cpi 361.41 -6.3% 338.69 perf-stat.overall.cycles-between-cache-misses 4.21 +0.5 4.74 perf-stat.overall.dTLB-load-miss-rate% 96.84 -1.6 95.28 perf-stat.overall.iTLB-load-miss-rate% 42701 ± 2% +81.4% 77459 perf-stat.overall.instructions-per-iTLB-miss 0.16 -3.1% 0.15 perf-stat.overall.ipc 28.32 +2.8 31.14 ± 9% perf-stat.overall.node-load-miss-rate% 8452 +14.5% 9674 perf-stat.overall.path-length 8.82e+09 -1.9% 8.652e+09 perf-stat.ps.branch-instructions 10660193 -28.7% 7603578 ± 2% perf-stat.ps.branch-misses 6.561e+08 +8.1% 7.094e+08 perf-stat.ps.cache-misses 9.565e+08 +5.1% 1.005e+09 perf-stat.ps.cache-references 1039 -4.6% 992.30 perf-stat.ps.context-switches 2.371e+11 +1.3% 2.402e+11 perf-stat.ps.cpu-cycles 50.29 ± 2% +22.5% 61.62 ± 7% perf-stat.ps.cpu-migrations 4.681e+08 +12.6% 5.269e+08 perf-stat.ps.dTLB-load-misses 3.281e+09 +5.6% 3.463e+09 perf-stat.ps.dTLB-stores 886017 ± 2% -45.9% 479504 perf-stat.ps.iTLB-load-misses 3.782e+10 -1.8% 3.714e+10 perf-stat.ps.instructions 395992 -46.3% 212654 perf-stat.ps.minor-faults 1.817e+08 +19.9% 2.179e+08 ± 8% perf-stat.ps.node-load-misses 2253281 -44.9% 1242231 perf-stat.ps.node-store-misses 1565323 -44.4% 869772 ± 2% perf-stat.ps.node-stores 395992 -46.3% 212654 perf-stat.ps.page-faults 1.309e+13 -8.1% 1.203e+13 perf-stat.total.instructions 146357 ± 6% -14.5% 125182 softirqs.CPU0.TIMER 141184 ± 5% -11.7% 124672 ± 2% softirqs.CPU1.TIMER 147886 ± 14% -20.0% 118358 ± 2% softirqs.CPU10.TIMER 136397 ± 2% -10.9% 121532 softirqs.CPU11.TIMER 137112 ± 3% -11.2% 121805 softirqs.CPU12.TIMER 136851 ± 3% -11.8% 120641 ± 2% softirqs.CPU13.TIMER 154185 ± 12% -18.7% 125328 ± 2% softirqs.CPU14.TIMER 146182 ± 6% -11.6% 129251 ± 2% softirqs.CPU15.TIMER 137975 ± 3% -11.6% 121954 softirqs.CPU17.TIMER 139759 ± 3% -12.1% 122847 ± 2% softirqs.CPU18.TIMER 136434 ± 3% -10.1% 122633 softirqs.CPU19.TIMER 140178 ± 3% -13.9% 120756 softirqs.CPU2.TIMER 142345 ± 2% -10.5% 127466 softirqs.CPU20.TIMER 142140 ± 4% -13.0% 123682 ± 2% softirqs.CPU21.TIMER 140219 ± 3% -11.9% 123543 softirqs.CPU3.TIMER 39237 ± 5% -8.5% 35897 softirqs.CPU33.RCU 39794 ± 6% -7.9% 36635 softirqs.CPU35.RCU 43475 ± 5% -10.0% 39132 softirqs.CPU36.RCU 137545 ± 3% -13.3% 119226 softirqs.CPU4.TIMER 44254 ± 6% -11.4% 39230 ± 4% softirqs.CPU42.RCU 43098 ± 4% -14.8% 36703 ± 10% softirqs.CPU43.RCU 150777 ± 12% -14.8% 128387 ± 4% softirqs.CPU44.TIMER 149865 ± 4% -13.8% 129214 ± 5% softirqs.CPU45.TIMER 139358 ± 2% -12.6% 121744 ± 2% softirqs.CPU46.TIMER 140711 ± 3% -11.8% 124137 softirqs.CPU47.TIMER 137353 ± 2% -12.7% 119924 softirqs.CPU48.TIMER 136333 ± 3% -11.4% 120724 softirqs.CPU49.TIMER 137656 ± 4% -12.8% 120006 softirqs.CPU5.TIMER 142562 ± 2% -11.5% 126238 ± 4% softirqs.CPU50.TIMER 139806 ± 2% -9.4% 126671 ± 2% softirqs.CPU51.TIMER 135091 ± 2% -10.2% 121320 ± 2% softirqs.CPU52.TIMER 139116 ± 3% -10.6% 124324 softirqs.CPU53.TIMER 137160 -14.2% 117742 ± 3% softirqs.CPU54.TIMER 135798 ± 2% -12.1% 119408 softirqs.CPU55.TIMER 136756 ± 3% -11.6% 120847 softirqs.CPU56.TIMER 135013 ± 2% -11.3% 119817 softirqs.CPU57.TIMER 146878 ± 7% -15.1% 124630 ± 3% softirqs.CPU58.TIMER 152234 ± 13% -15.3% 128998 ± 2% softirqs.CPU59.TIMER 142749 ± 3% -13.5% 123549 ± 2% softirqs.CPU6.TIMER 136796 ± 3% -11.8% 120619 ± 2% softirqs.CPU61.TIMER 138150 ± 3% -12.3% 121108 ± 3% softirqs.CPU62.TIMER 136393 ± 3% -11.4% 120810 softirqs.CPU63.TIMER 141686 ± 2% -10.2% 127274 softirqs.CPU64.TIMER 140700 ± 3% -12.0% 123754 ± 2% softirqs.CPU65.TIMER 143677 ± 3% -11.9% 126609 ± 2% softirqs.CPU7.TIMER 34821 ± 5% -9.7% 31437 softirqs.CPU77.RCU 34876 ± 5% -8.2% 32008 softirqs.CPU79.RCU 134723 ± 2% -10.2% 120958 softirqs.CPU8.TIMER 35408 ± 5% -7.7% 32681 ± 3% softirqs.CPU83.RCU 38518 ± 5% -9.5% 34861 ± 5% softirqs.CPU86.RCU 38060 ± 9% -20.0% 30464 ± 13% softirqs.CPU87.RCU 135950 ± 2% -9.8% 122596 softirqs.CPU9.TIMER 347353 ± 3% -21.9% 271232 ± 3% softirqs.SCHED vm-scalability.time.user_time 30000 +-+-----------------------------------------------------------------+ | | 25000 O-O.+.O O O O O O .O. O O O .O.O O O O.O .+.| |.+ +..+.+.+.+ + + +.+ +.+.+.+. +.+ +.+ : +.+.+ | | : : : : : : : : | 20000 +-+ : : :: : : : : : | | : : : : : : : : : : | 15000 +-+ : : : : : : : : : : | | : : : : : : : : : : | 10000 +-+ : : : : : : : : : : | | : : : : : : : : : : | | : : : : : : : : :: | 5000 +-+ : : :: : :: | | : : : : : | 0 +-+-O----O-O---O-----O-O------O---O--------------O------------------+ vm-scalability.time.system_time 6000 +-+------------------------------------------------------------------+ | | 5000 +-+. .+..+.+.+.+ + + +.+. .+.+.+.+. .+.+ +.+. +..+.+. .| | + : : : : +. + : : + : + | | : :: : : : : : : | 4000 +-+ : :: :: : : : : : | | : : : : : : : : : : | 3000 +-+ : : : : : : : : : : | O O O O :O:O : : :O:O O O O O O O O : :O O O: : | 2000 +-+ : : : : : : : : : : | | : : : : : : : : : : | | :: : : :: : : : : | 1000 +-+ : : : : : | | : : : : : | 0 +-+-O----O-O---O------O-O-----O----O--------------O------------------+ vm-scalability.time.percent_of_cpu_this_job_got 9000 +-+------------------------------------------------------------------+ O.O.+.O..+.+.O.+ O O + O O.+.O..+.O.O.O.O.O.O O.O.O +..+.+.+.| 8000 +-+ : : : : : : : : | 7000 +-+ : : : : : : : : | | : :: : : : : : : | 6000 +-+ : : : : : : : : : : | 5000 +-+ : : : : : : : : : : | | : : : : : : : : : : | 4000 +-+ : : : : : : : : : : | 3000 +-+ : : : : : : : : : : | | : : : : : : : : : : | 2000 +-+ : :: : :: : | 1000 +-+ : : : : : | | : : : : : | 0 +-+-O----O-O---O------O-O-----O----O--------------O------------------+ vm-scalability.time.elapsed_time 350 +-+-------------------------------------------------------------------+ O O O O : O O : O O O O O O O O O O O O : | 300 +-+ : : : : : : : : | | : : : : : : : : | 250 +-+ : : : : : : : : : : | | : : : : : : : : : : | 200 +-+ : : : : : : : : : : | | : : : : : : : : : : | 150 +-+ : : : : : : : : : : | | : : : : : : : : : : | 100 +-+ : : : : : : : : : : | | :: : : :: : | 50 +-+ : : : : : | | : : : : : | 0 +-+-O----O-O---O------O-O------O---O--------------O-------------------+ vm-scalability.time.elapsed_time.max 350 +-+-------------------------------------------------------------------+ O O O O : O O : O O O O O O O O O O O O : | 300 +-+ : : : : : : : : | | : : : : : : : : | 250 +-+ : : : : : : : : : : | | : : : : : : : : : : | 200 +-+ : : : : : : : : : : | | : : : : : : : : : : | 150 +-+ : : : : : : : : : : | | : : : : : : : : : : | 100 +-+ : : : : : : : : : : | | :: : : :: : | 50 +-+ : : : : : | | : : : : : | 0 +-+-O----O-O---O------O-O------O---O--------------O-------------------+ vm-scalability.time.maximum_resident_set_size 7e+07 +-+-----------------------------------------------------------------+ |.+.+.+..+.+.+.+ + + +.+.+.+.+.+.+..+.+.+ +.+.+ +.+.+.+.| 6e+07 +-+ : : : : : : : : | | : : : : : : : : | 5e+07 +-+ : : :: : : : : : | | : : : : : : : : : : | 4e+07 +-+ : : : : : : : : : : | O O O O :O:O: : : O:O O O O O O O O: :O O O: : | 3e+07 +-+ : : : : : : : : : : | | : : : : : : : : : : | 2e+07 +-+ : : : : : : : : : : | | : : :: : :: | 1e+07 +-+ : : : : : | | : : : : : | 0 +-+-O----O-O---O-----O-O------O---O--------------O------------------+ vm-scalability.time.minor_page_faults 1.4e+08 +-+---------------------------------------------------------------+ | : : : : : : : : | 1.2e+08 +-+ : : : : : : : : | | : : : : : : : : | 1e+08 +-+ : : : : : : : : : : | | : : : : : : : : : : | 8e+07 +-+ : : : : : : : : : : | O O O O :O:O: : :O:O O O O O O O O: :O O O: : | 6e+07 +-+ : : : : : : : : : : | | : : : : : : : : : : | 4e+07 +-+ : : : : : : : : : : | | :: : : :: : | 2e+07 +-+ : : : : : | | : : : : : | 0 +-+-O---O-O---O------O-O-----O---O-------------O------------------+ vm-scalability.throughput 6e+06 +-+-----------------------------------------------------------------+ | | 5e+06 +-+.+.+..+.+.+.+ + + +.+.+.+.+.+.+..+.+.+ +.+.+ +.+.+.+.| | : : : : : : : : | O O O O : O O :: O O O O O O O O O O O O : | 4e+06 +-+ : :: :: : : : : : | | : : : : : : : : : : | 3e+06 +-+ : : : : : : : : : : | | : : : : : : : : : : | 2e+06 +-+ : : : : : : : : : : | | : : : : : : : : : : | | :: :: : : :: :: | 1e+06 +-+ : : : : :: | | : : : : : | 0 +-+-O----O-O---O-----O-O------O---O--------------O------------------+ vm-scalability.free_time 40 +-+--------------------------------------------------------------------+ |. .+.+. .+ + + +. .+.+.+. .+.+ | 35 +-+.+. +.+. : : : : +.+. +.+. : +.+..+ +.+..+.+.| 30 +-+ : : : : : : : : | | : : :: : : : : : | 25 +-+ : : : : : : : : : : | | : : : : : : : : : : | 20 +-+ : : : : : : O O O O : : : : | O O O O :O:O: : :O:O O O O: :O O O: : | 15 +-+ : : : : : : : : : : | 10 +-+ : : : : : : : : : : | | : : :: :: :: | 5 +-+ : : : : : | | : : : : : | 0 +-+-O----O-O----O-----O-O------O----O--------------O-------------------+ vm-scalability.median 60000 +-+-----------------------------------------------------------------+ | : : : : : : : : | 50000 +-+ : : : : : : : : | O O O O : O O :: O O O O O O O O O O O O : | | : : : : : : : : : : | 40000 +-+ : : : : : : : : : : | | : : : : : : : : : : | 30000 +-+ : : : : : : : : : : | | : : : : : : : : : : | 20000 +-+ : : : : : : : : : : | | : : : : : : : : : : | | : : :: : :: | 10000 +-+ : : : : : | | : : : : : | 0 +-+-O----O-O---O-----O-O------O---O--------------O------------------+ vm-scalability.workload 1.6e+09 +-+---------------------------------------------------------------+ | + : : + + : : : : + | 1.4e+09 +-+ : : : : : : : : | 1.2e+09 O-O O O : O O : O O O O O O O O O :O O O : | | : : : : : : : : : : | 1e+09 +-+ : : : : : : : : : : | | : : : : : : : : : : | 8e+08 +-+ : : : : : : : : : : | | : : : : : : : : : : | 6e+08 +-+ : : : : : : : : : : | 4e+08 +-+ : : : : : : : : : : | | :: : : :: : | 2e+08 +-+ : : : : : | | : : : : : | 0 +-+-O---O-O---O------O-O-----O---O-------------O------------------+ [*] bisect-good sample [O] bisect-bad sample *************************************************************************************************** lkp-skl-fpga01: 104 threads Skylake with 192G memory *************************************************************************************************** lkp-skl-2sp6: 72 threads Intel(R) Xeon(R) Gold 6139 CPU @ 2.30GHz with 128G memory ========================================================================================= compiler/cpufreq_governor/kconfig/rootfs/runtime/size/tbox_group/test/testcase/ucode: gcc-7/performance/x86_64-rhel-7.6/debian-x86_64-2019-03-19.cgz/300s/1T/lkp-skl-2sp6/lru-shm/vm-scalability/0x200005a commit: f568cf93ca ("vfs: Convert smackfs to use the new mount API") 27eb9d500d ("vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API") f568cf93ca0923a0 27eb9d500d71d93e2b2f55c226b ---------------- --------------------------- fail:runs %reproduction fail:runs | | | 1:4 -25% :4 kmsg.Firmware_Bug]:the_BIOS_has_corrupted_hw-PMU_resources(MSR#is#) :4 25% 1:4 kmsg.Firmware_Bug]:the_BIOS_has_corrupted_hw-PMU_resources(MSR#is#c5) 3:4 17% 4:4 perf-profile.calltrace.cycles-pp.sync_regs.error_entry.do_access 6:4 33% 7:4 perf-profile.calltrace.cycles-pp.error_entry.do_access %stddev %change %stddev \ | \ 0.04 -44.5% 0.02 vm-scalability.free_time 493774 -6.9% 459676 vm-scalability.median 0.10 ± 4% -70.2% 0.03 ± 8% vm-scalability.median_stddev 0.10 ± 3% -71.6% 0.03 ± 8% vm-scalability.stddev 35560067 -6.7% 33183685 vm-scalability.throughput 265.62 +5.3% 279.70 vm-scalability.time.elapsed_time 265.62 +5.3% 279.70 vm-scalability.time.elapsed_time.max 53018 ± 4% +12.9% 59872 ± 2% vm-scalability.time.involuntary_context_switches 915746 -50.0% 458060 vm-scalability.time.maximum_resident_set_size 5.282e+08 +1.8% 5.378e+08 vm-scalability.time.minor_page_faults 1913 +3.0% 1970 vm-scalability.time.percent_of_cpu_this_job_got 3184 +7.2% 3413 vm-scalability.time.system_time 1899 +10.5% 2099 vm-scalability.time.user_time 33022 +102.9% 67014 vm-scalability.time.voluntary_context_switches 2.371e+09 +1.6% 2.408e+09 vm-scalability.workload 53130 ± 4% +157.8% 136948 ± 40% cpuidle.C1.usage 207860 +39.5% 290026 cpuidle.POLL.time 101579 +28.5% 130526 cpuidle.POLL.usage 73.00 -2.1% 71.50 vmstat.cpu.id 34506226 -48.0% 17935148 vmstat.memory.cache 96542374 +17.2% 1.131e+08 vmstat.memory.free 3293 ± 2% +35.6% 4466 vmstat.system.cs 851.33 +6.9% 910.25 turbostat.Avg_MHz 53038 ± 4% +155.5% 135497 ± 39% turbostat.C1 30.18 -22.3 7.89 ± 11% turbostat.PKG_% 48.33 +8.1% 52.25 ± 2% turbostat.PkgTmp 177.02 +6.2% 187.92 turbostat.PkgWatt 34577155 -48.1% 17950176 meminfo.Cached 33784819 -49.7% 16984540 meminfo.Committed_AS 33341535 -49.9% 16711076 meminfo.Inactive 33339708 -49.9% 16708826 meminfo.Inactive(anon) 1826 +23.1% 2248 meminfo.Inactive(file) 145341 -26.4% 106952 meminfo.KReclaimable 8852817 ± 3% -50.6% 4377013 meminfo.Mapped 95780719 +17.4% 1.124e+08 meminfo.MemAvailable 96325492 +17.3% 1.13e+08 meminfo.MemFree 35378531 -47.1% 18707929 meminfo.Memused 20756 ± 2% -43.5% 11735 meminfo.PageTables 145341 -26.4% 106952 meminfo.SReclaimable 33354229 -49.9% 16727090 meminfo.Shmem 274165 -13.2% 238008 meminfo.Slab 257335 -51.1% 125813 meminfo.max_used_kB 62431 ± 26% -49.8% 31335 ± 6% softirqs.CPU18.RCU 24215 ± 3% +12.7% 27285 ± 6% softirqs.CPU18.SCHED 24808 +18.1% 29295 ± 11% softirqs.CPU23.RCU 21472 ± 6% +22.6% 26326 ± 17% softirqs.CPU30.RCU 20425 ± 9% +30.1% 26584 ± 11% softirqs.CPU32.RCU 22603 ± 7% +20.0% 27119 ± 13% softirqs.CPU34.RCU 24977 ± 4% +20.7% 30135 ± 10% softirqs.CPU39.RCU 24481 ± 2% +16.9% 28618 ± 9% softirqs.CPU40.RCU 24336 ± 11% +13.0% 27510 ± 11% softirqs.CPU41.RCU 25706 ± 4% +20.1% 30880 ± 8% softirqs.CPU44.RCU 24456 ± 4% +21.1% 29606 ± 10% softirqs.CPU48.RCU 22435 ± 11% +37.2% 30774 ± 10% softirqs.CPU50.RCU 23702 ± 5% +28.3% 30419 ± 11% softirqs.CPU51.RCU 25067 ± 7% +32.1% 33123 ± 4% softirqs.CPU52.RCU 22262 ± 4% +17.7% 26209 ± 13% softirqs.CPU58.RCU 35952 ± 10% -22.6% 27814 ± 10% softirqs.CPU6.RCU 25967 ± 4% +8.4% 28142 softirqs.CPU7.SCHED 4406424 ± 7% -49.2% 2236674 ± 6% numa-vmstat.node0.nr_file_pages 11914548 ± 2% +18.3% 14091804 numa-vmstat.node0.nr_free_pages 4254001 ± 7% -51.1% 2080200 ± 6% numa-vmstat.node0.nr_inactive_anon 1024415 ± 2% -45.2% 560990 numa-vmstat.node0.nr_mapped 2444 ± 9% -38.0% 1515 ± 12% numa-vmstat.node0.nr_page_table_pages 4255480 ± 7% -51.1% 2082984 ± 6% numa-vmstat.node0.nr_shmem 19425 ± 6% -23.1% 14934 ± 2% numa-vmstat.node0.nr_slab_reclaimable 4253930 ± 7% -51.1% 2080107 ± 6% numa-vmstat.node0.nr_zone_inactive_anon 34197 ± 13% +10.5% 37790 ± 11% numa-vmstat.node1.nr_anon_pages 70.67 ± 24% +170.3% 191.00 ± 30% numa-vmstat.node1.nr_dirtied 4217319 ± 7% -46.8% 2244814 ± 6% numa-vmstat.node1.nr_file_pages 12188079 ± 2% +16.2% 14163735 numa-vmstat.node1.nr_free_pages 4060115 ± 8% -48.5% 2090670 ± 7% numa-vmstat.node1.nr_inactive_anon 1048978 ± 3% -48.0% 545102 ± 2% numa-vmstat.node1.nr_mapped 2558 ± 8% -44.0% 1431 ± 14% numa-vmstat.node1.nr_page_table_pages 4062271 ± 8% -48.5% 2092470 ± 7% numa-vmstat.node1.nr_shmem 16926 ± 7% -30.2% 11811 ± 3% numa-vmstat.node1.nr_slab_reclaimable 63.33 ± 24% +167.2% 169.25 ± 30% numa-vmstat.node1.nr_written 4060057 ± 8% -48.5% 2090600 ± 7% numa-vmstat.node1.nr_zone_inactive_anon 17465 +28.1% 22378 ± 2% slabinfo.anon_vma.active_objs 379.00 +28.3% 486.25 ± 2% slabinfo.anon_vma.active_slabs 17465 +28.2% 22391 ± 2% slabinfo.anon_vma.num_objs 379.00 +28.3% 486.25 ± 2% slabinfo.anon_vma.num_slabs 34169 +19.5% 40848 slabinfo.anon_vma_chain.active_objs 533.33 +19.7% 638.50 slabinfo.anon_vma_chain.active_slabs 34169 +19.7% 40900 slabinfo.anon_vma_chain.num_objs 533.33 +19.7% 638.50 slabinfo.anon_vma_chain.num_slabs 3571 +7.4% 3835 ± 3% slabinfo.pid.active_objs 3571 +7.4% 3835 ± 3% slabinfo.pid.num_objs 150826 -43.4% 85301 slabinfo.radix_tree_node.active_objs 2749 -42.7% 1574 slabinfo.radix_tree_node.active_slabs 154006 -42.7% 88185 slabinfo.radix_tree_node.num_objs 2749 -42.7% 1574 slabinfo.radix_tree_node.num_slabs 2385 ± 4% +17.6% 2805 ± 5% slabinfo.sighand_cache.active_objs 2388 ± 4% +17.8% 2813 ± 5% slabinfo.sighand_cache.num_objs 3459 ± 2% +9.2% 3778 ± 3% slabinfo.signal_cache.active_objs 3459 ± 2% +9.2% 3778 ± 3% slabinfo.signal_cache.num_objs 1197 ± 4% +19.7% 1433 ± 3% slabinfo.skbuff_ext_cache.active_objs 1204 ± 4% +19.3% 1436 ± 3% slabinfo.skbuff_ext_cache.num_objs 33178 ± 11% +65.8% 55010 ± 23% sched_debug.cfs_rq:/.min_vruntime.stddev 33153 ± 10% +66.0% 55046 ± 23% sched_debug.cfs_rq:/.spread0.stddev 408.53 ± 6% +29.1% 527.30 sched_debug.cfs_rq:/.util_est_enqueued.max 82.45 ± 6% +27.1% 104.81 ± 11% sched_debug.cfs_rq:/.util_est_enqueued.stddev 9.78 ± 2% +10.0% 10.76 ± 3% sched_debug.cpu.cpu_load[0].avg 9.62 ± 4% +15.0% 11.07 ± 3% sched_debug.cpu.cpu_load[1].avg 9.52 ± 5% +18.0% 11.23 ± 3% sched_debug.cpu.cpu_load[2].avg 9.55 ± 4% +18.5% 11.32 ± 3% sched_debug.cpu.cpu_load[3].avg 9.72 ± 3% +18.8% 11.54 ± 2% sched_debug.cpu.cpu_load[4].avg 8720 ± 11% +73.6% 15136 sched_debug.cpu.curr->pid.max 1411 ± 9% +90.4% 2687 ± 9% sched_debug.cpu.curr->pid.stddev 11784 ± 3% +13.5% 13371 sched_debug.cpu.load.avg 112105 ± 12% +19.5% 134002 sched_debug.cpu.nr_load_updates.max 1962 ± 15% +73.8% 3411 ± 17% sched_debug.cpu.nr_load_updates.stddev 0.23 ± 2% +9.6% 0.26 ± 2% sched_debug.cpu.nr_running.stddev 5073 ± 12% +58.9% 8061 sched_debug.cpu.nr_switches.avg 22637 ± 15% +94.2% 43953 ± 12% sched_debug.cpu.nr_switches.max 1515 ± 5% +76.3% 2671 ± 17% sched_debug.cpu.nr_switches.min 4110 ± 17% +74.3% 7163 ± 8% sched_debug.cpu.nr_switches.stddev -16.67 -35.5% -10.75 sched_debug.cpu.nr_uninterruptible.min 5.82 ± 8% -16.6% 4.85 ± 5% sched_debug.cpu.nr_uninterruptible.stddev 17663224 ± 7% -49.3% 8955455 ± 6% numa-meminfo.node0.FilePages 17054254 ± 7% -51.2% 8330481 ± 6% numa-meminfo.node0.Inactive 17053513 ± 7% -51.2% 8329558 ± 6% numa-meminfo.node0.Inactive(anon) 77757 ± 6% -23.2% 59747 ± 2% numa-meminfo.node0.KReclaimable 4351999 ± 2% -48.2% 2256215 ± 2% numa-meminfo.node0.Mapped 47619833 ± 2% +18.3% 56357983 numa-meminfo.node0.MemFree 18057485 ± 7% -48.4% 9319335 ± 5% numa-meminfo.node0.MemUsed 10156 ± 8% -39.8% 6112 ± 10% numa-meminfo.node0.PageTables 77757 ± 6% -23.2% 59747 ± 2% numa-meminfo.node0.SReclaimable 17059436 ± 7% -51.1% 8340675 ± 6% numa-meminfo.node0.Shmem 136791 ± 13% +10.5% 151136 ± 11% numa-meminfo.node1.AnonPages 16876074 ± 7% -46.8% 8981202 ± 6% numa-meminfo.node1.FilePages 16248318 ± 8% -48.5% 8365977 ± 7% numa-meminfo.node1.Inactive 16247232 ± 8% -48.5% 8364650 ± 7% numa-meminfo.node1.Inactive(anon) 67560 ± 7% -30.1% 47237 ± 3% numa-meminfo.node1.KReclaimable 4186453 ± 3% -47.9% 2182438 ± 4% numa-meminfo.node1.Mapped 48745406 ± 2% +16.2% 56652661 numa-meminfo.node1.MemFree 17281296 ± 7% -45.8% 9374041 ± 6% numa-meminfo.node1.MemUsed 9974 ± 6% -42.9% 5693 ± 16% numa-meminfo.node1.PageTables 67560 ± 7% -30.1% 47237 ± 3% numa-meminfo.node1.SReclaimable 16255869 ± 8% -48.5% 8371819 ± 7% numa-meminfo.node1.Shmem 128302 ± 3% -17.3% 106117 ± 7% numa-meminfo.node1.Slab 64056 +1.9% 65273 proc-vmstat.nr_active_anon 284.00 +80.7% 513.25 proc-vmstat.nr_dirtied 2391828 +17.3% 2805292 proc-vmstat.nr_dirty_background_threshold 4790033 +17.3% 5618128 proc-vmstat.nr_dirty_threshold 8615955 -47.9% 4485338 proc-vmstat.nr_file_pages 24110149 +17.2% 28251496 proc-vmstat.nr_free_pages 8306311 -49.7% 4174722 proc-vmstat.nr_inactive_anon 456.00 +23.2% 562.00 proc-vmstat.nr_inactive_file 2183921 ± 3% -49.7% 1097757 proc-vmstat.nr_mapped 5274 ± 3% -44.3% 2939 proc-vmstat.nr_page_table_pages 8309962 -49.7% 4179304 proc-vmstat.nr_shmem 36356 -26.5% 26731 proc-vmstat.nr_slab_reclaimable 266.67 +89.4% 505.00 proc-vmstat.nr_written 64056 +1.9% 65273 proc-vmstat.nr_zone_active_anon 8306311 -49.7% 4174722 proc-vmstat.nr_zone_inactive_anon 456.00 +23.2% 562.00 proc-vmstat.nr_zone_inactive_file 6493 ± 34% +198.8% 19402 ± 43% proc-vmstat.numa_hint_faults 2898 ± 20% +285.7% 11176 ± 58% proc-vmstat.numa_hint_faults_local 5.297e+08 +1.8% 5.39e+08 proc-vmstat.numa_hit 993.33 ± 14% +118.5% 2170 ± 35% proc-vmstat.numa_huge_pte_updates 5.296e+08 +1.8% 5.39e+08 proc-vmstat.numa_local 539384 ± 14% +113.4% 1150839 ± 34% proc-vmstat.numa_pte_updates 5669 ± 2% +20.9% 6856 ± 5% proc-vmstat.pgactivate 5.308e+08 +1.8% 5.401e+08 proc-vmstat.pgalloc_normal 5.289e+08 +1.8% 5.385e+08 proc-vmstat.pgfault 5.306e+08 +1.6% 5.393e+08 proc-vmstat.pgfree 50.92 -2.1 48.86 ± 3% perf-profile.calltrace.cycles-pp.page_fault.do_access 13.22 -1.7 11.55 ± 3% perf-profile.calltrace.cycles-pp.do_rw_once 1.61 ± 12% -1.3 0.31 ±102% perf-profile.calltrace.cycles-pp.evict.do_unlinkat.do_syscall_64.entry_SYSCALL_64_after_hwframe 1.61 ± 12% -1.3 0.31 ±102% perf-profile.calltrace.cycles-pp.do_unlinkat.do_syscall_64.entry_SYSCALL_64_after_hwframe 4.41 -1.1 3.29 ± 11% perf-profile.calltrace.cycles-pp.shmem_undo_range.shmem_truncate_range.shmem_evict_inode.evict.do_unlinkat 4.42 -1.1 3.30 ± 11% perf-profile.calltrace.cycles-pp.shmem_evict_inode.evict.do_unlinkat.do_syscall_64.entry_SYSCALL_64_after_hwframe 4.42 -1.1 3.30 ± 11% perf-profile.calltrace.cycles-pp.shmem_truncate_range.shmem_evict_inode.evict.do_unlinkat.do_syscall_64 1.69 ± 12% -1.0 0.70 ± 14% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe 1.69 ± 12% -1.0 0.70 ± 14% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe 2.14 -0.7 1.40 ± 8% perf-profile.calltrace.cycles-pp.__pagevec_release.shmem_undo_range.shmem_truncate_range.shmem_evict_inode.evict 2.12 ± 2% -0.7 1.39 ± 8% perf-profile.calltrace.cycles-pp.release_pages.__pagevec_release.shmem_undo_range.shmem_truncate_range.shmem_evict_inode 7.59 -0.7 6.92 ± 3% perf-profile.calltrace.cycles-pp.filemap_map_pages.__handle_mm_fault.handle_mm_fault.__do_page_fault.do_page_fault 1.43 -0.5 0.91 ± 7% perf-profile.calltrace.cycles-pp.free_unref_page_list.release_pages.__pagevec_release.shmem_undo_range.shmem_truncate_range 1.72 ± 2% -0.4 1.33 ± 2% perf-profile.calltrace.cycles-pp.shmem_add_to_page_cache.shmem_getpage_gfp.shmem_fault.__do_fault.__handle_mm_fault 3.27 ± 2% -0.4 2.92 ± 3% perf-profile.calltrace.cycles-pp.pagevec_lru_move_fn.__lru_cache_add.shmem_getpage_gfp.shmem_fault.__do_fault 0.76 ± 3% -0.3 0.42 ± 57% perf-profile.calltrace.cycles-pp.mem_cgroup_commit_charge.shmem_getpage_gfp.shmem_fault.__do_fault.__handle_mm_fault 3.55 ± 3% -0.3 3.23 ± 3% perf-profile.calltrace.cycles-pp.__lru_cache_add.shmem_getpage_gfp.shmem_fault.__do_fault.__handle_mm_fault 0.57 ± 4% -0.3 0.25 ±100% perf-profile.calltrace.cycles-pp.xas_find.filemap_map_pages.__handle_mm_fault.handle_mm_fault.__do_page_fault 1.59 ± 5% -0.3 1.32 ± 2% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.pagevec_lru_move_fn.__lru_cache_add.shmem_getpage_gfp 1.65 ± 5% -0.3 1.39 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.pagevec_lru_move_fn.__lru_cache_add.shmem_getpage_gfp.shmem_fault 0.71 -0.1 0.65 ± 3% perf-profile.calltrace.cycles-pp.security_vm_enough_memory_mm.shmem_alloc_and_acct_page.shmem_getpage_gfp.shmem_fault.__do_fault 0.58 ± 4% +0.0 0.61 ± 4% perf-profile.calltrace.cycles-pp.__list_del_entry_valid.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_vma.shmem_alloc_page 0.72 ± 7% +0.1 0.79 ± 7% perf-profile.calltrace.cycles-pp.delete_from_page_cache.truncate_inode_page.shmem_undo_range.shmem_truncate_range.shmem_evict_inode 8.50 ± 5% +1.4 9.90 ± 14% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64 6.53 ± 12% +1.7 8.19 ± 18% perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary 1.25e+10 -1.4% 1.233e+10 perf-stat.i.branch-instructions 40278349 -7.9% 37105012 perf-stat.i.cache-misses 2.002e+08 ± 3% -9.7% 1.807e+08 ± 3% perf-stat.i.cache-references 3242 +37.4% 4454 perf-stat.i.context-switches 1.09 ± 3% +11.6% 1.21 perf-stat.i.cpi 5.886e+10 +7.8% 6.346e+10 perf-stat.i.cpu-cycles 82.67 +73.7% 143.61 ± 2% perf-stat.i.cpu-migrations 925.34 +34.2% 1241 perf-stat.i.cycles-between-cache-misses 0.03 ± 10% +0.0 0.03 ± 4% perf-stat.i.dTLB-store-miss-rate% 2048736 -2.3% 2002293 perf-stat.i.dTLB-store-misses 2672712 ± 3% -17.4% 2207575 ± 2% perf-stat.i.iTLB-load-misses 0.95 ± 4% -10.5% 0.85 perf-stat.i.ipc 1962276 -2.7% 1909124 perf-stat.i.minor-faults 2409945 -4.8% 2294023 ± 3% perf-stat.i.node-load-misses 34.06 ± 2% -5.6 28.42 ± 4% perf-stat.i.node-store-miss-rate% 1962504 -2.7% 1909687 perf-stat.i.page-faults 4.49 ± 3% -9.2% 4.07 ± 3% perf-stat.overall.MPKI 1.32 +8.4% 1.43 perf-stat.overall.cpi 1466 +16.9% 1714 perf-stat.overall.cycles-between-cache-misses 77.31 ± 2% -5.1 72.25 ± 2% perf-stat.overall.iTLB-load-miss-rate% 16699 ± 4% +20.2% 20073 ± 2% perf-stat.overall.instructions-per-iTLB-miss 0.76 -7.8% 0.70 perf-stat.overall.ipc 5060 +2.4% 5183 perf-stat.overall.path-length 1.264e+10 -2.0% 1.239e+10 perf-stat.ps.branch-instructions 40566190 -8.4% 37177450 perf-stat.ps.cache-misses 2.023e+08 ± 3% -10.3% 1.815e+08 ± 3% perf-stat.ps.cache-references 3241 +37.3% 4450 perf-stat.ps.context-switches 5.951e+10 +7.1% 6.373e+10 perf-stat.ps.cpu-cycles 83.53 +73.6% 145.03 ± 2% perf-stat.ps.cpu-migrations 1.18e+10 -1.5% 1.162e+10 perf-stat.ps.dTLB-loads 2073937 -2.9% 2014135 perf-stat.ps.dTLB-store-misses 2704797 ± 3% -17.9% 2220519 ± 2% perf-stat.ps.iTLB-load-misses 1987508 -3.3% 1921858 perf-stat.ps.minor-faults 2405765 -4.9% 2287716 ± 3% perf-stat.ps.node-load-misses 1987508 -3.3% 1921858 perf-stat.ps.page-faults 1.2e+13 +4.0% 1.248e+13 perf-stat.total.instructions 380.00 ± 13% -48.5% 195.75 ± 30% interrupts.70:PCI-MSI.70260738-edge.eth3-TxRx-1 207675 +7.7% 223582 ± 2% interrupts.CAL:Function_call_interrupts 1712 ± 4% +28.6% 2202 ± 7% interrupts.CPU1.NMI:Non-maskable_interrupts 1712 ± 4% +28.6% 2202 ± 7% interrupts.CPU1.PMI:Performance_monitoring_interrupts 1794 ± 8% +25.2% 2246 ± 6% interrupts.CPU10.NMI:Non-maskable_interrupts 1794 ± 8% +25.2% 2246 ± 6% interrupts.CPU10.PMI:Performance_monitoring_interrupts 1795 ± 4% +19.1% 2137 ± 10% interrupts.CPU11.NMI:Non-maskable_interrupts 1795 ± 4% +19.1% 2137 ± 10% interrupts.CPU11.PMI:Performance_monitoring_interrupts 1710 ± 4% +46.6% 2507 ± 17% interrupts.CPU13.NMI:Non-maskable_interrupts 1710 ± 4% +46.6% 2507 ± 17% interrupts.CPU13.PMI:Performance_monitoring_interrupts 1701 ± 3% +28.3% 2182 ± 8% interrupts.CPU14.NMI:Non-maskable_interrupts 1701 ± 3% +28.3% 2182 ± 8% interrupts.CPU14.PMI:Performance_monitoring_interrupts 1701 ± 5% +38.3% 2352 ± 15% interrupts.CPU15.NMI:Non-maskable_interrupts 1701 ± 5% +38.3% 2352 ± 15% interrupts.CPU15.PMI:Performance_monitoring_interrupts 1708 ± 3% +27.0% 2168 ± 5% interrupts.CPU16.NMI:Non-maskable_interrupts 1708 ± 3% +27.0% 2168 ± 5% interrupts.CPU16.PMI:Performance_monitoring_interrupts 212.00 ± 47% +264.3% 772.25 ± 64% interrupts.CPU18.RES:Rescheduling_interrupts 69.00 ± 60% +100.7% 138.50 ± 36% interrupts.CPU18.TLB:TLB_shootdowns 1826 ± 5% +81.2% 3309 ± 31% interrupts.CPU19.NMI:Non-maskable_interrupts 1826 ± 5% +81.2% 3309 ± 31% interrupts.CPU19.PMI:Performance_monitoring_interrupts 2895 ± 2% +8.0% 3127 ± 4% interrupts.CPU2.CAL:Function_call_interrupts 1760 ± 9% +33.9% 2356 ± 18% interrupts.CPU20.NMI:Non-maskable_interrupts 1760 ± 9% +33.9% 2356 ± 18% interrupts.CPU20.PMI:Performance_monitoring_interrupts 299.67 ± 37% +155.3% 765.00 ± 38% interrupts.CPU20.RES:Rescheduling_interrupts 1741 ± 9% +62.9% 2836 ± 52% interrupts.CPU21.NMI:Non-maskable_interrupts 1741 ± 9% +62.9% 2836 ± 52% interrupts.CPU21.PMI:Performance_monitoring_interrupts 184.67 ± 48% +211.2% 574.75 ± 34% interrupts.CPU21.RES:Rescheduling_interrupts 2911 +7.7% 3135 ± 3% interrupts.CPU22.CAL:Function_call_interrupts 1749 ± 9% +23.3% 2157 ± 16% interrupts.CPU22.NMI:Non-maskable_interrupts 1749 ± 9% +23.3% 2157 ± 16% interrupts.CPU22.PMI:Performance_monitoring_interrupts 210.67 ± 27% +285.1% 811.25 ± 58% interrupts.CPU22.RES:Rescheduling_interrupts 57.33 ± 46% +209.2% 177.25 ± 24% interrupts.CPU22.TLB:TLB_shootdowns 1746 ± 10% +19.3% 2083 ± 12% interrupts.CPU23.NMI:Non-maskable_interrupts 1746 ± 10% +19.3% 2083 ± 12% interrupts.CPU23.PMI:Performance_monitoring_interrupts 285.67 ± 28% +120.8% 630.75 ± 31% interrupts.CPU23.RES:Rescheduling_interrupts 2900 +8.2% 3137 ± 2% interrupts.CPU24.CAL:Function_call_interrupts 1738 ± 9% +29.1% 2245 ± 13% interrupts.CPU24.NMI:Non-maskable_interrupts 1738 ± 9% +29.1% 2245 ± 13% interrupts.CPU24.PMI:Performance_monitoring_interrupts 371.00 ± 14% +90.9% 708.25 ± 31% interrupts.CPU24.RES:Rescheduling_interrupts 128.33 ± 30% +123.4% 286.75 ± 78% interrupts.CPU24.TLB:TLB_shootdowns 2866 +9.6% 3140 ± 2% interrupts.CPU25.CAL:Function_call_interrupts 1746 ± 10% +65.6% 2891 ± 27% interrupts.CPU25.NMI:Non-maskable_interrupts 1746 ± 10% +65.6% 2891 ± 27% interrupts.CPU25.PMI:Performance_monitoring_interrupts 237.00 ± 13% +204.1% 720.75 ± 56% interrupts.CPU25.RES:Rescheduling_interrupts 31.67 ± 15% +435.3% 169.50 ± 49% interrupts.CPU25.TLB:TLB_shootdowns 275.67 ± 68% +140.1% 662.00 ± 12% interrupts.CPU26.RES:Rescheduling_interrupts 2797 ± 5% +13.0% 3159 ± 3% interrupts.CPU27.CAL:Function_call_interrupts 224.00 ± 85% +134.6% 525.50 ± 16% interrupts.CPU27.RES:Rescheduling_interrupts 60.33 ± 46% +222.4% 194.50 ± 56% interrupts.CPU27.TLB:TLB_shootdowns 2916 +9.2% 3185 ± 4% interrupts.CPU28.CAL:Function_call_interrupts 1773 ± 11% +17.8% 2089 ± 11% interrupts.CPU29.NMI:Non-maskable_interrupts 1773 ± 11% +17.8% 2089 ± 11% interrupts.CPU29.PMI:Performance_monitoring_interrupts 181.33 ± 44% +564.0% 1204 ± 60% interrupts.CPU29.RES:Rescheduling_interrupts 1729 ± 5% +26.1% 2179 ± 7% interrupts.CPU3.NMI:Non-maskable_interrupts 1729 ± 5% +26.1% 2179 ± 7% interrupts.CPU3.PMI:Performance_monitoring_interrupts 1748 ± 10% +20.6% 2109 ± 10% interrupts.CPU30.NMI:Non-maskable_interrupts 1748 ± 10% +20.6% 2109 ± 10% interrupts.CPU30.PMI:Performance_monitoring_interrupts 2945 +6.2% 3127 ± 4% interrupts.CPU31.CAL:Function_call_interrupts 1745 ± 10% +19.4% 2084 ± 10% interrupts.CPU31.NMI:Non-maskable_interrupts 1745 ± 10% +19.4% 2084 ± 10% interrupts.CPU31.PMI:Performance_monitoring_interrupts 244.67 ± 30% +199.4% 732.50 ± 47% interrupts.CPU31.RES:Rescheduling_interrupts 248.00 ± 39% +129.0% 568.00 ± 40% interrupts.CPU33.RES:Rescheduling_interrupts 100.33 ± 16% +106.8% 207.50 ± 48% interrupts.CPU33.TLB:TLB_shootdowns 2810 ± 3% +12.2% 3154 ± 3% interrupts.CPU34.CAL:Function_call_interrupts 1762 ± 10% +29.3% 2279 ± 14% interrupts.CPU34.NMI:Non-maskable_interrupts 1762 ± 10% +29.3% 2279 ± 14% interrupts.CPU34.PMI:Performance_monitoring_interrupts 249.00 ± 53% +271.4% 924.75 ± 29% interrupts.CPU34.RES:Rescheduling_interrupts 2901 +8.2% 3138 ± 4% interrupts.CPU35.CAL:Function_call_interrupts 1720 ± 4% +25.7% 2163 ± 7% interrupts.CPU39.NMI:Non-maskable_interrupts 1720 ± 4% +25.7% 2163 ± 7% interrupts.CPU39.PMI:Performance_monitoring_interrupts 95.67 ± 88% +110.1% 201.00 ± 86% interrupts.CPU39.TLB:TLB_shootdowns 2836 ± 6% +10.4% 3130 interrupts.CPU4.CAL:Function_call_interrupts 1854 ± 11% +18.4% 2195 ± 7% interrupts.CPU4.NMI:Non-maskable_interrupts 1854 ± 11% +18.4% 2195 ± 7% interrupts.CPU4.PMI:Performance_monitoring_interrupts 138.00 ± 47% +76.1% 243.00 ± 38% interrupts.CPU40.RES:Rescheduling_interrupts 44.00 ± 42% +277.3% 166.00 ± 64% interrupts.CPU40.TLB:TLB_shootdowns 1707 ± 4% +28.1% 2186 ± 8% interrupts.CPU41.NMI:Non-maskable_interrupts 1707 ± 4% +28.1% 2186 ± 8% interrupts.CPU41.PMI:Performance_monitoring_interrupts 38.00 ± 52% +186.8% 109.00 ± 69% interrupts.CPU41.TLB:TLB_shootdowns 1690 ± 4% +30.0% 2196 ± 8% interrupts.CPU42.NMI:Non-maskable_interrupts 1690 ± 4% +30.0% 2196 ± 8% interrupts.CPU42.PMI:Performance_monitoring_interrupts 71.67 ± 84% +278.1% 271.00 ±109% interrupts.CPU42.TLB:TLB_shootdowns 1701 ± 3% +26.9% 2159 ± 8% interrupts.CPU43.NMI:Non-maskable_interrupts 1701 ± 3% +26.9% 2159 ± 8% interrupts.CPU43.PMI:Performance_monitoring_interrupts 66.33 ± 65% +106.2% 136.75 ± 61% interrupts.CPU43.TLB:TLB_shootdowns 1716 ± 3% +26.9% 2178 ± 8% interrupts.CPU44.NMI:Non-maskable_interrupts 1716 ± 3% +26.9% 2178 ± 8% interrupts.CPU44.PMI:Performance_monitoring_interrupts 57.33 ± 97% +76.2% 101.00 ± 58% interrupts.CPU44.TLB:TLB_shootdowns 1759 ± 2% +26.4% 2224 ± 6% interrupts.CPU45.NMI:Non-maskable_interrupts 1759 ± 2% +26.4% 2224 ± 6% interrupts.CPU45.PMI:Performance_monitoring_interrupts 1877 ± 13% +18.3% 2222 ± 8% interrupts.CPU46.NMI:Non-maskable_interrupts 1877 ± 13% +18.3% 2222 ± 8% interrupts.CPU46.PMI:Performance_monitoring_interrupts 220.33 ± 71% +86.3% 410.50 ± 35% interrupts.CPU47.RES:Rescheduling_interrupts 49.33 ± 79% +96.1% 96.75 ± 52% interrupts.CPU47.TLB:TLB_shootdowns 34.67 ± 29% +149.5% 86.50 ± 50% interrupts.CPU48.TLB:TLB_shootdowns 1705 ± 4% +66.4% 2838 ± 36% interrupts.CPU49.NMI:Non-maskable_interrupts 1705 ± 4% +66.4% 2838 ± 36% interrupts.CPU49.PMI:Performance_monitoring_interrupts 331.67 ± 31% -40.9% 196.00 ± 25% interrupts.CPU49.RES:Rescheduling_interrupts 41.67 ± 75% +128.0% 95.00 ± 54% interrupts.CPU49.TLB:TLB_shootdowns 1727 ± 3% +25.5% 2167 ± 8% interrupts.CPU5.NMI:Non-maskable_interrupts 1727 ± 3% +25.5% 2167 ± 8% interrupts.CPU5.PMI:Performance_monitoring_interrupts 1705 ± 4% +28.7% 2194 ± 11% interrupts.CPU50.NMI:Non-maskable_interrupts 1705 ± 4% +28.7% 2194 ± 11% interrupts.CPU50.PMI:Performance_monitoring_interrupts 37.67 ± 40% +145.6% 92.50 ± 28% interrupts.CPU50.TLB:TLB_shootdowns 1705 ± 5% +29.7% 2211 ± 8% interrupts.CPU51.NMI:Non-maskable_interrupts 1705 ± 5% +29.7% 2211 ± 8% interrupts.CPU51.PMI:Performance_monitoring_interrupts 223.00 ± 13% +51.0% 336.75 ± 23% interrupts.CPU51.RES:Rescheduling_interrupts 1711 ± 4% +28.0% 2191 ± 8% interrupts.CPU52.NMI:Non-maskable_interrupts 1711 ± 4% +28.0% 2191 ± 8% interrupts.CPU52.PMI:Performance_monitoring_interrupts 76.33 ± 79% +109.3% 159.75 ± 43% interrupts.CPU53.TLB:TLB_shootdowns 262.67 ± 9% +139.8% 630.00 ± 19% interrupts.CPU54.RES:Rescheduling_interrupts 92.33 ± 52% +32.4% 122.25 ± 44% interrupts.CPU54.TLB:TLB_shootdowns 2904 ± 2% +7.2% 3113 ± 5% interrupts.CPU55.CAL:Function_call_interrupts 1770 ± 8% +62.2% 2871 ± 29% interrupts.CPU55.NMI:Non-maskable_interrupts 1770 ± 8% +62.2% 2871 ± 29% interrupts.CPU55.PMI:Performance_monitoring_interrupts 1761 ± 10% +59.5% 2808 ± 42% interrupts.CPU56.NMI:Non-maskable_interrupts 1761 ± 10% +59.5% 2808 ± 42% interrupts.CPU56.PMI:Performance_monitoring_interrupts 2645 ± 11% +14.9% 3038 ± 5% interrupts.CPU57.CAL:Function_call_interrupts 257.67 ± 40% +185.3% 735.25 ± 19% interrupts.CPU58.RES:Rescheduling_interrupts 46.67 ± 38% +341.4% 206.00 ± 82% interrupts.CPU58.TLB:TLB_shootdowns 2927 +8.9% 3187 ± 4% interrupts.CPU59.CAL:Function_call_interrupts 1767 ± 9% +17.1% 2069 ± 10% interrupts.CPU59.NMI:Non-maskable_interrupts 1767 ± 9% +17.1% 2069 ± 10% interrupts.CPU59.PMI:Performance_monitoring_interrupts 146.00 ± 43% +166.6% 389.25 ± 46% interrupts.CPU59.RES:Rescheduling_interrupts 1742 ± 9% +43.9% 2506 ± 28% interrupts.CPU60.NMI:Non-maskable_interrupts 1742 ± 9% +43.9% 2506 ± 28% interrupts.CPU60.PMI:Performance_monitoring_interrupts 2811 ± 3% +12.0% 3150 ± 3% interrupts.CPU61.CAL:Function_call_interrupts 371.67 ± 20% +43.1% 532.00 ± 28% interrupts.CPU61.RES:Rescheduling_interrupts 1781 ± 10% +28.8% 2295 ± 18% interrupts.CPU63.NMI:Non-maskable_interrupts 1781 ± 10% +28.8% 2295 ± 18% interrupts.CPU63.PMI:Performance_monitoring_interrupts 186.33 ± 44% +176.5% 515.25 ± 42% interrupts.CPU63.RES:Rescheduling_interrupts 31.67 ± 22% +500.0% 190.00 ± 58% interrupts.CPU63.TLB:TLB_shootdowns 375.33 ± 22% +79.6% 674.00 ± 40% interrupts.CPU64.RES:Rescheduling_interrupts 1785 ± 12% +17.4% 2096 ± 10% interrupts.CPU65.NMI:Non-maskable_interrupts 1785 ± 12% +17.4% 2096 ± 10% interrupts.CPU65.PMI:Performance_monitoring_interrupts 1745 ± 11% +19.7% 2089 ± 10% interrupts.CPU66.NMI:Non-maskable_interrupts 1745 ± 11% +19.7% 2089 ± 10% interrupts.CPU66.PMI:Performance_monitoring_interrupts 1749 ± 9% +19.5% 2090 ± 10% interrupts.CPU67.NMI:Non-maskable_interrupts 1749 ± 9% +19.5% 2090 ± 10% interrupts.CPU67.PMI:Performance_monitoring_interrupts 1811 ± 8% +17.7% 2132 ± 12% interrupts.CPU68.NMI:Non-maskable_interrupts 1811 ± 8% +17.7% 2132 ± 12% interrupts.CPU68.PMI:Performance_monitoring_interrupts 179.33 ± 62% +133.9% 419.50 ± 35% interrupts.CPU68.RES:Rescheduling_interrupts 380.00 ± 13% -48.5% 195.75 ± 30% interrupts.CPU69.70:PCI-MSI.70260738-edge.eth3-TxRx-1 2682 ± 4% +18.7% 3184 ± 5% interrupts.CPU69.CAL:Function_call_interrupts 1727 ± 4% +26.5% 2184 ± 8% interrupts.CPU7.NMI:Non-maskable_interrupts 1727 ± 4% +26.5% 2184 ± 8% interrupts.CPU7.PMI:Performance_monitoring_interrupts 2847 ± 4% +11.1% 3162 ± 5% interrupts.CPU70.CAL:Function_call_interrupts 1777 ± 9% +22.0% 2168 ± 11% interrupts.CPU70.NMI:Non-maskable_interrupts 1777 ± 9% +22.0% 2168 ± 11% interrupts.CPU70.PMI:Performance_monitoring_interrupts 241.33 ± 32% +137.4% 573.00 ± 25% interrupts.CPU70.RES:Rescheduling_interrupts 1780 ± 10% +23.1% 2191 ± 11% interrupts.CPU71.NMI:Non-maskable_interrupts 1780 ± 10% +23.1% 2191 ± 11% interrupts.CPU71.PMI:Performance_monitoring_interrupts 1704 ± 4% +25.5% 2139 ± 8% interrupts.CPU8.NMI:Non-maskable_interrupts 1704 ± 4% +25.5% 2139 ± 8% interrupts.CPU8.PMI:Performance_monitoring_interrupts 1774 +23.9% 2198 ± 8% interrupts.CPU9.NMI:Non-maskable_interrupts 1774 +23.9% 2198 ± 8% interrupts.CPU9.PMI:Performance_monitoring_interrupts 135003 ± 4% +21.0% 163358 ± 7% interrupts.NMI:Non-maskable_interrupts 135003 ± 4% +21.0% 163358 ± 7% interrupts.PMI:Performance_monitoring_interrupts 24412 ± 8% +56.4% 38169 ± 13% interrupts.RES:Rescheduling_interrupts 6115 ± 16% +92.6% 11777 ± 13% interrupts.TLB:TLB_shootdowns *************************************************************************************************** lkp-bdw-ep2: 88 threads Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz with 128G memory ========================================================================================= compiler/cpufreq_governor/kconfig/rootfs/runtime/size/tbox_group/test/testcase: gcc-7/performance/x86_64-rhel-7.6/debian-x86_64-2018-04-03.cgz/300s/256G/lkp-bdw-ep2/lru-shm-rand/vm-scalability commit: f568cf93ca ("vfs: Convert smackfs to use the new mount API") 27eb9d500d ("vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API") f568cf93ca0923a0 27eb9d500d71d93e2b2f55c226b ---------------- --------------------------- %stddev %change %stddev \ | \ 0.03 -51.6% 0.01 vm-scalability.free_time 54446 +17.4% 63942 vm-scalability.median 0.00 ± 29% +206.0% 0.01 ± 12% vm-scalability.median_stddev 4788027 +17.3% 5614974 vm-scalability.throughput 193.08 -8.8% 176.00 vm-scalability.time.elapsed_time 193.08 -8.8% 176.00 vm-scalability.time.elapsed_time.max 750512 -49.9% 375966 vm-scalability.time.maximum_resident_set_size 5671 -6.6% 5298 vm-scalability.time.percent_of_cpu_this_job_got 881.36 -6.1% 827.85 vm-scalability.time.system_time 10068 -15.6% 8497 vm-scalability.time.user_time 10321 +97.7% 20407 vm-scalability.time.voluntary_context_switches 35.56 ± 2% +3.8 39.39 mpstat.cpu.all.idle% 34.81 ± 10% -15.2% 29.51 boot-time.boot 28.53 ± 13% -18.9% 23.13 boot-time.dhcp 366.97 +1.7% 373.37 pmeter.Average_Active_Power 13197 +15.2% 15209 pmeter.performance_per_watt 6.092e+08 ±138% +537.9% 3.886e+09 ± 31% cpuidle.C3.time 2145092 ±138% +325.2% 9121998 ± 20% cpuidle.C3.usage 5.276e+09 ± 14% -59.5% 2.135e+09 ± 60% cpuidle.C6.time 36.00 ± 2% +9.7% 39.50 vmstat.cpu.id 58.00 -6.9% 54.00 vmstat.cpu.us 55228783 -49.7% 27768287 vmstat.memory.cache 75764283 +36.3% 1.033e+08 vmstat.memory.free 1972 +43.0% 2820 ± 4% vmstat.system.cs 1823 -5.6% 1720 turbostat.Avg_MHz 2144618 ±138% +325.3% 9121862 ± 20% turbostat.C3 3.53 ±138% +21.4 24.98 ± 32% turbostat.C3% 30.76 ± 15% -17.2 13.59 ± 60% turbostat.C6% 12.28 ± 30% +59.1% 19.54 ± 6% turbostat.CPU%c1 0.77 ±137% +1422.1% 11.72 ± 44% turbostat.CPU%c3 21.38 ± 22% -67.9% 6.86 ± 70% turbostat.CPU%c6 65.00 ± 3% +10.8% 72.00 turbostat.CoreTmp 10.91 ± 16% -24.4% 8.24 ± 2% turbostat.Pkg%pc2 0.00 ±141% +725.0% 0.03 ± 53% turbostat.Pkg%pc3 0.12 ± 61% -89.9% 0.01 ±103% turbostat.Pkg%pc6 178.48 +2.8% 183.53 turbostat.PkgWatt 22.65 -3.2% 21.92 turbostat.RAMWatt 55238867 -50.0% 27601805 meminfo.Cached 54257533 -51.0% 26559528 meminfo.Committed_AS 54003945 -51.2% 26371074 meminfo.Inactive 54002477 -51.2% 26369483 meminfo.Inactive(anon) 202625 -33.0% 135693 meminfo.KReclaimable 39890692 -53.3% 18642069 meminfo.Mapped 75034355 +36.9% 1.027e+08 meminfo.MemAvailable 75551000 +36.7% 1.033e+08 meminfo.MemFree 56341522 -49.2% 28604497 meminfo.Memused 88732 -48.9% 45342 meminfo.PageTables 202625 -33.0% 135693 meminfo.SReclaimable 54016672 -51.2% 26379748 meminfo.Shmem 336103 -18.9% 272502 meminfo.Slab 360670 -43.5% 203807 meminfo.max_used_kB 15033 ± 3% +12.6% 16924 ± 4% slabinfo.anon_vma.active_objs 15033 ± 3% +12.6% 16924 ± 4% slabinfo.anon_vma.num_objs 29229 ± 2% +8.9% 31821 ± 3% slabinfo.anon_vma_chain.active_objs 29229 ± 2% +8.9% 31821 ± 3% slabinfo.anon_vma_chain.num_objs 12000 ± 4% +9.4% 13124 ± 3% slabinfo.cred_jar.active_objs 12000 ± 4% +9.4% 13124 ± 3% slabinfo.cred_jar.num_objs 662.00 ± 7% -16.9% 550.00 ± 5% slabinfo.kmem_cache_node.active_objs 703.00 ± 7% -15.9% 591.50 ± 4% slabinfo.kmem_cache_node.num_objs 238877 -47.9% 124367 slabinfo.radix_tree_node.active_objs 4288 -47.7% 2244 slabinfo.radix_tree_node.active_slabs 240200 -47.7% 125696 slabinfo.radix_tree_node.num_objs 4288 -47.7% 2244 slabinfo.radix_tree_node.num_slabs 648.67 ± 4% +36.8% 887.50 ± 4% slabinfo.skbuff_ext_cache.active_objs 648.67 ± 4% +36.8% 887.50 ± 4% slabinfo.skbuff_ext_cache.num_objs 2559 ± 3% +20.1% 3074 ± 11% slabinfo.sock_inode_cache.active_objs 2559 ± 3% +20.1% 3074 ± 11% slabinfo.sock_inode_cache.num_objs 6943392 ± 4% -50.9% 3410526 ± 2% numa-vmstat.node0.nr_file_pages 9358435 ± 2% +37.9% 12908555 numa-vmstat.node0.nr_free_pages 6783608 ± 4% -52.0% 3257220 ± 2% numa-vmstat.node0.nr_inactive_anon 4976414 ± 3% -53.3% 2324942 numa-vmstat.node0.nr_mapped 11297 ± 2% -48.6% 5810 ± 3% numa-vmstat.node0.nr_page_table_pages 6786264 ± 4% -52.0% 3258936 ± 2% numa-vmstat.node0.nr_shmem 27773 -33.2% 18562 ± 4% numa-vmstat.node0.nr_slab_reclaimable 6783598 ± 4% -52.0% 3257206 ± 2% numa-vmstat.node0.nr_zone_inactive_anon 6798656 ± 5% -48.7% 3489885 ± 3% numa-vmstat.node1.nr_file_pages 9597839 ± 3% +34.6% 12913978 numa-vmstat.node1.nr_free_pages 6649054 ± 5% -49.8% 3334855 ± 3% numa-vmstat.node1.nr_inactive_anon 18.00 ± 68% +263.9% 65.50 ± 50% numa-vmstat.node1.nr_inactive_file 4914540 -53.1% 2306813 numa-vmstat.node1.nr_mapped 10635 -49.2% 5405 ± 5% numa-vmstat.node1.nr_page_table_pages 6649976 ± 5% -49.8% 3335702 ± 3% numa-vmstat.node1.nr_shmem 22650 ± 2% -32.3% 15336 ± 6% numa-vmstat.node1.nr_slab_reclaimable 6649042 ± 5% -49.8% 3334845 ± 3% numa-vmstat.node1.nr_zone_inactive_anon 18.00 ± 68% +263.9% 65.50 ± 50% numa-vmstat.node1.nr_zone_inactive_file 27806193 ± 4% -51.0% 13620225 ± 2% numa-meminfo.node0.FilePages 27168468 ± 4% -52.1% 13008289 ± 3% numa-meminfo.node0.Inactive 27167075 ± 4% -52.1% 13006963 ± 3% numa-meminfo.node0.Inactive(anon) 111263 -33.3% 74266 ± 4% numa-meminfo.node0.KReclaimable 19943539 ± 3% -53.1% 9349954 numa-meminfo.node0.Mapped 37400591 ± 3% +38.1% 51655755 numa-meminfo.node0.MemFree 28466692 ± 4% -50.1% 14211527 ± 2% numa-meminfo.node0.MemUsed 45430 ± 2% -48.3% 23467 ± 4% numa-meminfo.node0.PageTables 111263 -33.3% 74266 ± 4% numa-meminfo.node0.SReclaimable 27177672 ± 4% -52.1% 13013861 ± 3% numa-meminfo.node0.Shmem 185064 -18.1% 151580 ± 5% numa-meminfo.node0.Slab 27237549 ± 4% -48.7% 13965128 ± 2% numa-meminfo.node1.FilePages 26639192 ± 4% -49.9% 13345224 ± 3% numa-meminfo.node1.Inactive 26639119 ± 4% -49.9% 13344959 ± 3% numa-meminfo.node1.Inactive(anon) 90704 -32.4% 61357 ± 6% numa-meminfo.node1.KReclaimable 19694581 -53.4% 9174424 numa-meminfo.node1.Mapped 38348099 ± 3% +34.7% 51650284 numa-meminfo.node1.MemFree 27677139 ± 4% -48.1% 14374955 ± 2% numa-meminfo.node1.MemUsed 42740 -49.4% 21608 ± 4% numa-meminfo.node1.PageTables 90704 -32.4% 61357 ± 6% numa-meminfo.node1.SReclaimable 26642833 ± 4% -49.9% 13348390 ± 3% numa-meminfo.node1.Shmem 150389 -19.7% 120837 ± 8% numa-meminfo.node1.Slab 65408 -2.4% 63841 proc-vmstat.nr_active_anon 122.33 +56.1% 191.00 proc-vmstat.nr_dirtied 1872101 +36.9% 2563115 proc-vmstat.nr_dirty_background_threshold 3748812 +36.9% 5132740 proc-vmstat.nr_dirty_threshold 13795102 -50.0% 6898747 proc-vmstat.nr_file_pages 18902921 +36.6% 25824194 proc-vmstat.nr_free_pages 13485730 -51.1% 6590402 proc-vmstat.nr_inactive_anon 366.00 +8.6% 397.50 proc-vmstat.nr_inactive_file 9967759 -53.5% 4637655 proc-vmstat.nr_mapped 22073 -49.2% 11216 proc-vmstat.nr_page_table_pages 13489295 -51.1% 6592974 proc-vmstat.nr_shmem 50522 -32.9% 33902 proc-vmstat.nr_slab_reclaimable 33370 +2.5% 34199 proc-vmstat.nr_slab_unreclaimable 118.67 +43.9% 170.75 proc-vmstat.nr_written 65408 -2.4% 63841 proc-vmstat.nr_zone_active_anon 13485730 -51.1% 6590402 proc-vmstat.nr_zone_inactive_anon 366.00 +8.6% 397.50 proc-vmstat.nr_zone_inactive_file 2724 ± 25% +77.1% 4826 ± 28% proc-vmstat.numa_hint_faults 3308 ± 4% +168.1% 8869 ± 47% proc-vmstat.numa_pages_migrated 275310 ± 9% +65.5% 455701 ± 15% proc-vmstat.numa_pte_updates 11705 ± 4% -16.1% 9825 ± 6% proc-vmstat.pgactivate 3308 ± 4% +168.1% 8869 ± 47% proc-vmstat.pgmigrate_success 27.31 ± 13% +392.9% 134.60 ±119% sched_debug.cfs_rq:/.load_avg.avg 331.58 ± 11% +525.2% 2073 ±128% sched_debug.cfs_rq:/.load_avg.max 68.59 ± 17% +592.4% 474.93 ±130% sched_debug.cfs_rq:/.load_avg.stddev 5489162 -54.4% 2500483 ± 56% sched_debug.cfs_rq:/.min_vruntime.avg 5569380 -54.1% 2554132 ± 56% sched_debug.cfs_rq:/.min_vruntime.max 5339180 -55.4% 2381744 ± 56% sched_debug.cfs_rq:/.min_vruntime.min 0.13 ± 32% +40.7% 0.19 ± 7% sched_debug.cfs_rq:/.nr_running.stddev 6.73 ± 19% +167.6% 18.01 ± 53% sched_debug.cfs_rq:/.removed.load_avg.avg 40.59 ± 9% +108.1% 84.47 ± 30% sched_debug.cfs_rq:/.removed.load_avg.stddev 309.01 ± 19% +169.0% 831.37 ± 53% sched_debug.cfs_rq:/.removed.runnable_sum.avg 11735 +77.4% 20824 ± 24% sched_debug.cfs_rq:/.removed.runnable_sum.max 1863 ± 9% +109.2% 3898 ± 30% sched_debug.cfs_rq:/.removed.runnable_sum.stddev 2.70 ± 35% +192.4% 7.89 ± 48% sched_debug.cfs_rq:/.removed.util_avg.avg 104.17 ± 17% +118.0% 227.12 ± 25% sched_debug.cfs_rq:/.removed.util_avg.max 16.08 ± 25% +136.5% 38.02 ± 27% sched_debug.cfs_rq:/.removed.util_avg.stddev 10.49 ± 11% -32.0% 7.13 ± 10% sched_debug.cfs_rq:/.runnable_load_avg.avg 114.31 ± 11% +14.2% 130.50 ± 6% sched_debug.cfs_rq:/.util_avg.stddev 557.17 ± 21% +24.9% 695.94 ± 16% sched_debug.cfs_rq:/.util_est_enqueued.max 130909 ± 2% -38.9% 79924 ± 32% sched_debug.cpu.clock.avg 130918 ± 2% -38.9% 79933 ± 32% sched_debug.cpu.clock.max 130900 ± 2% -38.9% 79917 ± 32% sched_debug.cpu.clock.min 130909 ± 2% -38.9% 79924 ± 32% sched_debug.cpu.clock_task.avg 130918 ± 2% -38.9% 79933 ± 32% sched_debug.cpu.clock_task.max 130900 ± 2% -38.9% 79917 ± 32% sched_debug.cpu.clock_task.min 8.80 ± 4% -14.7% 7.50 ± 5% sched_debug.cpu.cpu_load[3].avg 8.95 ± 4% -13.9% 7.70 ± 2% sched_debug.cpu.cpu_load[4].avg 4083 ± 19% -35.7% 2625 ± 22% sched_debug.cpu.curr->pid.avg 2171 ± 43% -71.8% 612.12 ± 39% sched_debug.cpu.curr->pid.min 96790 -47.5% 50806 ± 50% sched_debug.cpu.nr_load_updates.avg 108785 ± 5% -48.3% 56293 ± 46% sched_debug.cpu.nr_load_updates.max 93045 -50.6% 46010 ± 52% sched_debug.cpu.nr_load_updates.min 0.22 ± 15% +22.6% 0.27 ± 8% sched_debug.cpu.nr_running.stddev 11.00 ± 26% +81.8% 20.00 ± 35% sched_debug.cpu.nr_uninterruptible.max 130899 ± 2% -38.9% 79917 ± 32% sched_debug.cpu_clk 126848 ± 3% -40.2% 75884 ± 34% sched_debug.ktime 131813 ± 3% -38.8% 80612 ± 32% sched_debug.sched_clk 20131 ± 7% +18.3% 23816 ± 12% softirqs.CPU14.RCU 89596 ± 10% -21.0% 70741 ± 9% softirqs.CPU14.TIMER 82675 ± 3% -12.7% 72166 ± 9% softirqs.CPU15.TIMER 82022 ± 3% -13.1% 71311 ± 7% softirqs.CPU20.TIMER 75561 ± 4% -13.5% 65383 ± 4% softirqs.CPU22.TIMER 73531 ± 5% -12.7% 64183 ± 4% softirqs.CPU23.TIMER 74796 ± 3% -13.8% 64445 ± 6% softirqs.CPU24.TIMER 73640 ± 5% -10.8% 65706 ± 3% softirqs.CPU26.TIMER 72580 ± 6% -13.9% 62506 ± 3% softirqs.CPU27.TIMER 73608 ± 5% -12.0% 64755 ± 3% softirqs.CPU28.TIMER 73680 ± 5% -10.1% 66265 ± 5% softirqs.CPU29.TIMER 73672 ± 4% -13.2% 63955 ± 3% softirqs.CPU30.TIMER 73132 ± 5% -12.3% 64110 ± 4% softirqs.CPU31.TIMER 73080 ± 5% -13.4% 63311 ± 4% softirqs.CPU33.TIMER 74422 ± 4% -10.9% 66288 softirqs.CPU34.TIMER 73272 ± 5% -12.7% 63991 ± 2% softirqs.CPU35.TIMER 75598 ± 4% -10.2% 67920 softirqs.CPU37.TIMER 75732 ± 3% -12.1% 66556 ± 2% softirqs.CPU38.TIMER 73562 ± 6% -14.0% 63239 ± 5% softirqs.CPU39.TIMER 74804 ± 3% -13.1% 64997 ± 2% softirqs.CPU40.TIMER 75926 -11.2% 67418 ± 2% softirqs.CPU41.TIMER 76357 -10.0% 68731 ± 3% softirqs.CPU42.TIMER 78177 -13.1% 67901 softirqs.CPU43.TIMER 20261 ± 5% +25.8% 25487 ± 22% softirqs.CPU49.RCU 21419 ± 3% +11.1% 23806 ± 6% softirqs.CPU58.RCU 83494 ± 2% -15.7% 70407 ± 8% softirqs.CPU58.TIMER 81880 ± 3% -13.4% 70890 ± 8% softirqs.CPU59.TIMER 16398 ± 7% +24.7% 20443 ± 14% softirqs.CPU63.RCU 81929 ± 3% -13.3% 71052 ± 9% softirqs.CPU64.TIMER 73604 ± 5% -13.4% 63720 ± 2% softirqs.CPU66.TIMER 74179 ± 4% -13.0% 64501 ± 5% softirqs.CPU68.TIMER 73907 ± 5% -11.8% 65152 ± 4% softirqs.CPU70.TIMER 72272 ± 6% -14.5% 61817 ± 5% softirqs.CPU71.TIMER 73600 ± 5% -12.4% 64453 ± 4% softirqs.CPU72.TIMER 73383 ± 4% -12.2% 64466 ± 4% softirqs.CPU74.TIMER 16610 ± 9% +22.2% 20291 ± 10% softirqs.CPU75.RCU 74127 ± 4% -12.7% 64724 ± 4% softirqs.CPU75.TIMER 72876 ± 5% -13.5% 63044 ± 3% softirqs.CPU77.TIMER 73741 ± 5% -9.8% 66541 softirqs.CPU78.TIMER 72336 ± 6% -10.7% 64573 softirqs.CPU79.TIMER 74984 ± 4% -9.4% 67927 softirqs.CPU81.TIMER 75643 ± 3% -11.6% 66858 ± 2% softirqs.CPU82.TIMER 74269 ± 4% -12.4% 65080 ± 3% softirqs.CPU84.TIMER 75571 -11.4% 66947 ± 2% softirqs.CPU85.TIMER 75810 -9.8% 68392 ± 2% softirqs.CPU86.TIMER 6674487 -10.7% 5963133 ± 3% softirqs.TIMER 48.25 ± 48% -48.1 0.15 ±173% perf-profile.calltrace.cycles-pp.apic_timer_interrupt 45.86 ± 48% -45.7 0.14 ±173% perf-profile.calltrace.cycles-pp.smp_apic_timer_interrupt.apic_timer_interrupt 36.81 ± 47% -36.8 0.00 perf-profile.calltrace.cycles-pp.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt 26.91 ± 48% -26.9 0.00 perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt 19.21 ± 43% -19.2 0.00 perf-profile.calltrace.cycles-pp.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt 17.43 ± 43% -17.4 0.00 perf-profile.calltrace.cycles-pp.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt 17.20 ± 43% -17.2 0.00 perf-profile.calltrace.cycles-pp.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt 11.95 ± 48% -12.0 0.00 perf-profile.calltrace.cycles-pp.scheduler_tick.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues 9.48 ± 48% -9.5 0.00 perf-profile.calltrace.cycles-pp.task_tick_fair.scheduler_tick.update_process_times.tick_sched_handle.tick_sched_timer 8.62 ± 41% -8.1 0.54 ± 60% perf-profile.calltrace.cycles-pp.new_sync_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe 8.17 ± 41% -7.6 0.54 ± 60% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write._fini 8.17 ± 41% -7.6 0.54 ± 60% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write._fini 8.17 ± 41% -7.6 0.54 ± 60% perf-profile.calltrace.cycles-pp.vprintk_emit.devkmsg_emit.devkmsg_write.new_sync_write.vfs_write 8.17 ± 41% -7.6 0.54 ± 60% perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write._fini 8.17 ± 41% -7.6 0.54 ± 60% perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 8.17 ± 41% -7.6 0.54 ± 60% perf-profile.calltrace.cycles-pp.write._fini 8.17 ± 41% -7.6 0.54 ± 60% perf-profile.calltrace.cycles-pp._fini 8.17 ± 41% -7.6 0.54 ± 60% perf-profile.calltrace.cycles-pp.devkmsg_write.new_sync_write.vfs_write.ksys_write.do_syscall_64 8.17 ± 41% -7.6 0.54 ± 60% perf-profile.calltrace.cycles-pp.devkmsg_emit.devkmsg_write.new_sync_write.vfs_write.ksys_write 7.95 ± 38% -7.4 0.54 ± 61% perf-profile.calltrace.cycles-pp.console_unlock.vprintk_emit.devkmsg_emit.devkmsg_write.new_sync_write 6.82 ± 32% -6.5 0.31 ±100% perf-profile.calltrace.cycles-pp.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit 6.82 ± 32% -6.5 0.31 ±100% perf-profile.calltrace.cycles-pp.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock 6.50 ± 34% -6.2 0.33 ±100% perf-profile.calltrace.cycles-pp.serial8250_console_write.console_unlock.vprintk_emit.devkmsg_emit.devkmsg_write 6.30 ± 35% -6.0 0.32 ±100% perf-profile.calltrace.cycles-pp.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit.devkmsg_emit 4.33 ± 50% -4.3 0.00 perf-profile.calltrace.cycles-pp.irq_exit.smp_apic_timer_interrupt.apic_timer_interrupt 4.19 ± 50% -4.2 0.00 perf-profile.calltrace.cycles-pp.perf_mux_hrtimer_handler.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt 4.10 ±115% -3.8 0.26 ±100% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe 4.09 ±116% -3.8 0.26 ±100% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.00 +1.4 1.41 ± 12% perf-profile.calltrace.cycles-pp.nrand48_r 0.00 +1.5 1.52 ± 34% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_vma 0.00 +1.5 1.54 ± 34% perf-profile.calltrace.cycles-pp._raw_spin_lock.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_vma.shmem_alloc_page 0.00 +1.5 1.54 ± 33% perf-profile.calltrace.cycles-pp.clear_page_erms.shmem_getpage_gfp.shmem_fault.__do_fault.__handle_mm_fault 0.00 +2.0 2.00 ± 34% perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_vma.shmem_alloc_page.shmem_alloc_and_acct_page 0.00 +2.1 2.08 ± 34% perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.alloc_pages_vma.shmem_alloc_page.shmem_alloc_and_acct_page.shmem_getpage_gfp 0.00 +2.1 2.12 ± 34% perf-profile.calltrace.cycles-pp.alloc_pages_vma.shmem_alloc_page.shmem_alloc_and_acct_page.shmem_getpage_gfp.shmem_fault 0.00 +2.2 2.17 ± 34% perf-profile.calltrace.cycles-pp.shmem_alloc_page.shmem_alloc_and_acct_page.shmem_getpage_gfp.shmem_fault.__do_fault 0.00 +2.5 2.47 ± 34% perf-profile.calltrace.cycles-pp.shmem_alloc_and_acct_page.shmem_getpage_gfp.shmem_fault.__do_fault.__handle_mm_fault 0.00 +2.9 2.94 ± 10% perf-profile.calltrace.cycles-pp.do_rw_once 0.00 +3.8 3.76 ± 33% perf-profile.calltrace.cycles-pp.filemap_map_pages.__handle_mm_fault.handle_mm_fault.__do_page_fault.do_page_fault 0.00 +5.7 5.74 ± 33% perf-profile.calltrace.cycles-pp.shmem_getpage_gfp.shmem_fault.__do_fault.__handle_mm_fault.handle_mm_fault 0.00 +5.8 5.85 ± 33% perf-profile.calltrace.cycles-pp.shmem_fault.__do_fault.__handle_mm_fault.handle_mm_fault.__do_page_fault 0.00 +5.9 5.87 ± 33% perf-profile.calltrace.cycles-pp.__do_fault.__handle_mm_fault.handle_mm_fault.__do_page_fault.do_page_fault 0.18 ±141% +9.8 10.02 ± 33% perf-profile.calltrace.cycles-pp.__handle_mm_fault.handle_mm_fault.__do_page_fault.do_page_fault.page_fault 0.00 +10.1 10.11 ± 33% perf-profile.calltrace.cycles-pp.handle_mm_fault.__do_page_fault.do_page_fault.page_fault.do_access 0.00 +10.4 10.41 ± 33% perf-profile.calltrace.cycles-pp.__do_page_fault.do_page_fault.page_fault.do_access 0.00 +10.5 10.49 ± 33% perf-profile.calltrace.cycles-pp.do_page_fault.page_fault.do_access 0.00 +11.6 11.55 ± 36% perf-profile.calltrace.cycles-pp.page_fault.do_access 0.00 +82.8 82.82 ± 5% perf-profile.calltrace.cycles-pp.do_access 21.45 -7.5% 19.84 ± 5% perf-stat.i.MPKI 8.758e+09 +10.8% 9.7e+09 perf-stat.i.branch-instructions 0.80 ± 7% -0.2 0.61 ± 25% perf-stat.i.branch-miss-rate% 52.90 -10.0 42.90 perf-stat.i.cache-miss-rate% 5.787e+08 -11.6% 5.114e+08 perf-stat.i.cache-misses 8.135e+08 +7.8% 8.773e+08 perf-stat.i.cache-references 1924 +43.6% 2763 ± 4% perf-stat.i.context-switches 3.57 -14.1% 3.06 perf-stat.i.cpi 1.602e+11 -5.6% 1.512e+11 perf-stat.i.cpu-cycles 64.20 ± 5% +39.9% 89.80 perf-stat.i.cpu-migrations 537.18 ± 8% +21.6% 653.45 ± 6% perf-stat.i.cycles-between-cache-misses 2.96 -0.5 2.48 perf-stat.i.dTLB-load-miss-rate% 4.458e+08 -4.6% 4.254e+08 perf-stat.i.dTLB-load-misses 1.098e+10 +10.7% 1.215e+10 perf-stat.i.dTLB-loads 589025 ± 25% +54.6% 910381 ± 7% perf-stat.i.dTLB-store-misses 4.284e+09 +12.1% 4.803e+09 perf-stat.i.dTLB-stores 1852806 ± 4% +13.3% 2099262 ± 3% perf-stat.i.iTLB-load-misses 3.852e+10 +11.1% 4.278e+10 perf-stat.i.instructions 286409 ± 41% +54.9% 443730 ± 3% perf-stat.i.instructions-per-iTLB-miss 0.33 ± 4% +7.7% 0.35 ± 3% perf-stat.i.ipc 672221 ± 2% +11.8% 751342 perf-stat.i.minor-faults 6532149 -26.3% 4811515 ± 15% perf-stat.i.node-load-misses 5.586e+08 -12.0% 4.919e+08 perf-stat.i.node-loads 672261 ± 2% +11.8% 751452 perf-stat.i.page-faults 21.10 -2.9% 20.50 perf-stat.overall.MPKI 71.04 -12.7 58.30 perf-stat.overall.cache-miss-rate% 4.15 -14.9% 3.53 perf-stat.overall.cpi 277.06 +6.7% 295.70 perf-stat.overall.cycles-between-cache-misses 3.89 -0.5 3.38 perf-stat.overall.dTLB-load-miss-rate% 0.01 ± 25% +0.0 0.02 ± 7% perf-stat.overall.dTLB-store-miss-rate% 0.24 +17.5% 0.28 perf-stat.overall.ipc 12551 +1.1% 12696 perf-stat.overall.path-length 8.727e+09 +10.9% 9.677e+09 perf-stat.ps.branch-instructions 5.756e+08 -11.4% 5.101e+08 perf-stat.ps.cache-misses 8.103e+08 +8.0% 8.751e+08 perf-stat.ps.cache-references 1922 +43.4% 2757 ± 4% perf-stat.ps.context-switches 1.595e+11 -5.4% 1.508e+11 perf-stat.ps.cpu-cycles 64.37 ± 5% +39.6% 89.86 perf-stat.ps.cpu-migrations 4.431e+08 -4.2% 4.243e+08 perf-stat.ps.dTLB-load-misses 1.094e+10 +10.8% 1.213e+10 perf-stat.ps.dTLB-loads 586226 ± 25% +54.3% 904307 ± 7% perf-stat.ps.dTLB-store-misses 4.276e+09 +12.1% 4.792e+09 perf-stat.ps.dTLB-stores 1875392 ± 4% +12.0% 2099913 ± 3% perf-stat.ps.iTLB-load-misses 3.84e+10 +11.2% 4.269e+10 perf-stat.ps.instructions 684408 +10.2% 754271 perf-stat.ps.minor-faults 6489476 -26.3% 4781738 ± 15% perf-stat.ps.node-load-misses 5.554e+08 -11.7% 4.907e+08 perf-stat.ps.node-loads 684409 +10.2% 754271 perf-stat.ps.page-faults 7.45e+12 +1.1% 7.535e+12 perf-stat.total.instructions 190.67 -9.9% 171.75 interrupts.168:IR-PCI-MSI.512000-edge.ahci[0000:00:1f.2] 213.67 ± 29% -56.7% 92.50 ± 3% interrupts.39:IR-PCI-MSI.1572869-edge.eth0-TxRx-5 251.33 ± 48% -60.7% 98.75 ± 6% interrupts.45:IR-PCI-MSI.1572875-edge.eth0-TxRx-11 169.00 ± 26% -38.6% 103.75 ± 14% interrupts.46:IR-PCI-MSI.1572876-edge.eth0-TxRx-12 107.00 ± 10% -15.0% 91.00 ± 4% interrupts.48:IR-PCI-MSI.1572878-edge.eth0-TxRx-14 103.00 ± 6% -15.5% 87.00 interrupts.50:IR-PCI-MSI.1572880-edge.eth0-TxRx-16 99.33 ± 4% -12.7% 86.75 interrupts.75:IR-PCI-MSI.1572903-edge.eth0-TxRx-39 98.67 ± 6% -12.1% 86.75 interrupts.79:IR-PCI-MSI.1572907-edge.eth0-TxRx-43 98.33 ± 5% -11.5% 87.00 interrupts.84:IR-PCI-MSI.1572912-edge.eth0-TxRx-48 99.67 ± 2% -12.7% 87.00 interrupts.87:IR-PCI-MSI.1572915-edge.eth0-TxRx-51 328.00 -10.7% 292.75 interrupts.9:IR-IO-APIC.9-fasteoi.acpi 193517 -6.8% 180367 interrupts.CAL:Function_call_interrupts 328.00 -10.7% 292.75 interrupts.CPU1.9:IR-IO-APIC.9-fasteoi.acpi 2232 ± 2% -8.8% 2035 ± 2% interrupts.CPU1.CAL:Function_call_interrupts 7482 ± 7% -49.3% 3796 ± 36% interrupts.CPU10.NMI:Non-maskable_interrupts 7482 ± 7% -49.3% 3796 ± 36% interrupts.CPU10.PMI:Performance_monitoring_interrupts 251.33 ± 48% -60.7% 98.75 ± 6% interrupts.CPU11.45:IR-PCI-MSI.1572875-edge.eth0-TxRx-11 7434 ± 8% -32.4% 5028 ± 6% interrupts.CPU11.NMI:Non-maskable_interrupts 7434 ± 8% -32.4% 5028 ± 6% interrupts.CPU11.PMI:Performance_monitoring_interrupts 169.00 ± 26% -38.6% 103.75 ± 14% interrupts.CPU12.46:IR-PCI-MSI.1572876-edge.eth0-TxRx-12 7480 ± 8% -33.2% 4994 ± 8% interrupts.CPU12.NMI:Non-maskable_interrupts 7480 ± 8% -33.2% 4994 ± 8% interrupts.CPU12.PMI:Performance_monitoring_interrupts 7460 ± 7% -33.2% 4986 ± 7% interrupts.CPU13.NMI:Non-maskable_interrupts 7460 ± 7% -33.2% 4986 ± 7% interrupts.CPU13.PMI:Performance_monitoring_interrupts 904.00 ±105% -86.8% 119.00 ± 79% interrupts.CPU13.RES:Rescheduling_interrupts 107.00 ± 10% -15.0% 91.00 ± 4% interrupts.CPU14.48:IR-PCI-MSI.1572878-edge.eth0-TxRx-14 7545 ± 6% -32.3% 5111 ± 8% interrupts.CPU14.NMI:Non-maskable_interrupts 7545 ± 6% -32.3% 5111 ± 8% interrupts.CPU14.PMI:Performance_monitoring_interrupts 7556 ± 6% -32.8% 5080 ± 7% interrupts.CPU15.NMI:Non-maskable_interrupts 7556 ± 6% -32.8% 5080 ± 7% interrupts.CPU15.PMI:Performance_monitoring_interrupts 103.00 ± 6% -15.5% 87.00 interrupts.CPU16.50:IR-PCI-MSI.1572880-edge.eth0-TxRx-16 7494 ± 7% -32.4% 5069 ± 8% interrupts.CPU16.NMI:Non-maskable_interrupts 7494 ± 7% -32.4% 5069 ± 8% interrupts.CPU16.PMI:Performance_monitoring_interrupts 7477 ± 8% -32.9% 5015 ± 8% interrupts.CPU17.NMI:Non-maskable_interrupts 7477 ± 8% -32.9% 5015 ± 8% interrupts.CPU17.PMI:Performance_monitoring_interrupts 7416 ± 8% -32.4% 5012 ± 7% interrupts.CPU18.NMI:Non-maskable_interrupts 7416 ± 8% -32.4% 5012 ± 7% interrupts.CPU18.PMI:Performance_monitoring_interrupts 7489 ± 7% -24.9% 5624 ± 19% interrupts.CPU19.NMI:Non-maskable_interrupts 7489 ± 7% -24.9% 5624 ± 19% interrupts.CPU19.PMI:Performance_monitoring_interrupts 7531 ± 6% -32.1% 5116 ± 7% interrupts.CPU20.NMI:Non-maskable_interrupts 7531 ± 6% -32.1% 5116 ± 7% interrupts.CPU20.PMI:Performance_monitoring_interrupts 302.33 ± 9% -50.1% 151.00 ± 39% interrupts.CPU22.RES:Rescheduling_interrupts 7565 ± 6% -33.8% 5005 ± 6% interrupts.CPU32.NMI:Non-maskable_interrupts 7565 ± 6% -33.8% 5005 ± 6% interrupts.CPU32.PMI:Performance_monitoring_interrupts 7494 ± 7% -34.4% 4916 ± 7% interrupts.CPU34.NMI:Non-maskable_interrupts 7494 ± 7% -34.4% 4916 ± 7% interrupts.CPU34.PMI:Performance_monitoring_interrupts 7562 ± 5% -34.6% 4946 ± 7% interrupts.CPU35.NMI:Non-maskable_interrupts 7562 ± 5% -34.6% 4946 ± 7% interrupts.CPU35.PMI:Performance_monitoring_interrupts 7485 ± 7% -32.8% 5030 ± 7% interrupts.CPU36.NMI:Non-maskable_interrupts 7485 ± 7% -32.8% 5030 ± 7% interrupts.CPU36.PMI:Performance_monitoring_interrupts 7532 ± 6% -33.3% 5026 ± 7% interrupts.CPU37.NMI:Non-maskable_interrupts 7532 ± 6% -33.3% 5026 ± 7% interrupts.CPU37.PMI:Performance_monitoring_interrupts 898.33 ±108% -87.9% 108.25 ± 59% interrupts.CPU37.RES:Rescheduling_interrupts 7502 ± 7% -33.7% 4977 ± 7% interrupts.CPU38.NMI:Non-maskable_interrupts 7502 ± 7% -33.7% 4977 ± 7% interrupts.CPU38.PMI:Performance_monitoring_interrupts 99.33 ± 4% -12.7% 86.75 interrupts.CPU39.75:IR-PCI-MSI.1572903-edge.eth0-TxRx-39 7506 ± 6% -41.6% 4382 ± 28% interrupts.CPU39.NMI:Non-maskable_interrupts 7506 ± 6% -41.6% 4382 ± 28% interrupts.CPU39.PMI:Performance_monitoring_interrupts 7512 ± 7% -30.3% 5232 ± 8% interrupts.CPU40.NMI:Non-maskable_interrupts 7512 ± 7% -30.3% 5232 ± 8% interrupts.CPU40.PMI:Performance_monitoring_interrupts 7842 -44.1% 4384 ± 27% interrupts.CPU41.NMI:Non-maskable_interrupts 7842 -44.1% 4384 ± 27% interrupts.CPU41.PMI:Performance_monitoring_interrupts 7501 ± 6% -41.7% 4375 ± 27% interrupts.CPU42.NMI:Non-maskable_interrupts 7501 ± 6% -41.7% 4375 ± 27% interrupts.CPU42.PMI:Performance_monitoring_interrupts 98.67 ± 6% -12.1% 86.75 interrupts.CPU43.79:IR-PCI-MSI.1572907-edge.eth0-TxRx-43 7515 ± 6% -41.5% 4399 ± 27% interrupts.CPU43.NMI:Non-maskable_interrupts 7515 ± 6% -41.5% 4399 ± 27% interrupts.CPU43.PMI:Performance_monitoring_interrupts 7550 ± 5% -40.5% 4492 ± 26% interrupts.CPU44.NMI:Non-maskable_interrupts 7550 ± 5% -40.5% 4492 ± 26% interrupts.CPU44.PMI:Performance_monitoring_interrupts 182.33 ± 39% +529.8% 1148 ±115% interrupts.CPU44.RES:Rescheduling_interrupts 2255 ± 2% -8.6% 2060 ± 2% interrupts.CPU45.CAL:Function_call_interrupts 98.33 ± 5% -11.5% 87.00 interrupts.CPU48.84:IR-PCI-MSI.1572912-edge.eth0-TxRx-48 182.67 ± 68% +121.0% 403.75 ± 61% interrupts.CPU49.RES:Rescheduling_interrupts 213.67 ± 29% -56.7% 92.50 ± 3% interrupts.CPU5.39:IR-PCI-MSI.1572869-edge.eth0-TxRx-5 109.00 ± 14% +62.2% 176.75 ± 36% interrupts.CPU5.RES:Rescheduling_interrupts 99.67 ± 2% -12.7% 87.00 interrupts.CPU51.87:IR-PCI-MSI.1572915-edge.eth0-TxRx-51 51.00 ± 51% +63.7% 83.50 ± 27% interrupts.CPU51.RES:Rescheduling_interrupts 2241 -9.8% 2022 ± 3% interrupts.CPU52.CAL:Function_call_interrupts 2222 -10.5% 1988 ± 3% interrupts.CPU54.CAL:Function_call_interrupts 7457 ± 7% -38.2% 4612 ± 27% interrupts.CPU55.NMI:Non-maskable_interrupts 7457 ± 7% -38.2% 4612 ± 27% interrupts.CPU55.PMI:Performance_monitoring_interrupts 7522 ± 7% -41.9% 4367 ± 25% interrupts.CPU56.NMI:Non-maskable_interrupts 7522 ± 7% -41.9% 4367 ± 25% interrupts.CPU56.PMI:Performance_monitoring_interrupts 7514 ± 7% -49.6% 3786 ± 35% interrupts.CPU57.NMI:Non-maskable_interrupts 7514 ± 7% -49.6% 3786 ± 35% interrupts.CPU57.PMI:Performance_monitoring_interrupts 76.67 ± 95% +761.8% 660.75 ±127% interrupts.CPU57.RES:Rescheduling_interrupts 7563 ± 6% -40.8% 4480 ± 24% interrupts.CPU58.NMI:Non-maskable_interrupts 7563 ± 6% -40.8% 4480 ± 24% interrupts.CPU58.PMI:Performance_monitoring_interrupts 205.00 ± 45% -66.6% 68.50 ± 56% interrupts.CPU58.RES:Rescheduling_interrupts 7571 ± 6% -32.6% 5105 ± 7% interrupts.CPU59.NMI:Non-maskable_interrupts 7571 ± 6% -32.6% 5105 ± 7% interrupts.CPU59.PMI:Performance_monitoring_interrupts 7531 ± 6% -41.1% 4432 ± 25% interrupts.CPU6.NMI:Non-maskable_interrupts 7531 ± 6% -41.1% 4432 ± 25% interrupts.CPU6.PMI:Performance_monitoring_interrupts 7532 ± 6% -32.6% 5075 ± 8% interrupts.CPU60.NMI:Non-maskable_interrupts 7532 ± 6% -32.6% 5075 ± 8% interrupts.CPU60.PMI:Performance_monitoring_interrupts 26.00 ± 19% +301.9% 104.50 ± 86% interrupts.CPU60.RES:Rescheduling_interrupts 7482 ± 7% -33.2% 4999 ± 8% interrupts.CPU61.NMI:Non-maskable_interrupts 7482 ± 7% -33.2% 4999 ± 8% interrupts.CPU61.PMI:Performance_monitoring_interrupts 7513 ± 7% -33.5% 4998 ± 8% interrupts.CPU62.NMI:Non-maskable_interrupts 7513 ± 7% -33.5% 4998 ± 8% interrupts.CPU62.PMI:Performance_monitoring_interrupts 7478 ± 7% -27.5% 5423 ± 14% interrupts.CPU63.NMI:Non-maskable_interrupts 7478 ± 7% -27.5% 5423 ± 14% interrupts.CPU63.PMI:Performance_monitoring_interrupts 79.33 ± 80% +70.8% 135.50 ± 59% interrupts.CPU63.RES:Rescheduling_interrupts 7574 ± 6% -32.1% 5141 ± 7% interrupts.CPU64.NMI:Non-maskable_interrupts 7574 ± 6% -32.1% 5141 ± 7% interrupts.CPU64.PMI:Performance_monitoring_interrupts 190.67 -9.9% 171.75 interrupts.CPU65.168:IR-PCI-MSI.512000-edge.ahci[0000:00:1f.2] 7546 ± 5% -24.1% 5728 ± 15% interrupts.CPU65.NMI:Non-maskable_interrupts 7546 ± 5% -24.1% 5728 ± 15% interrupts.CPU65.PMI:Performance_monitoring_interrupts 7435 ± 8% -31.0% 5130 ± 6% interrupts.CPU66.NMI:Non-maskable_interrupts 7435 ± 8% -31.0% 5130 ± 6% interrupts.CPU66.PMI:Performance_monitoring_interrupts 48.00 ± 40% +322.4% 202.75 ± 76% interrupts.CPU66.RES:Rescheduling_interrupts 7473 ± 8% -30.1% 5226 ± 15% interrupts.CPU67.NMI:Non-maskable_interrupts 7473 ± 8% -30.1% 5226 ± 15% interrupts.CPU67.PMI:Performance_monitoring_interrupts 7502 ± 7% -33.6% 4985 ± 7% interrupts.CPU68.NMI:Non-maskable_interrupts 7502 ± 7% -33.6% 4985 ± 7% interrupts.CPU68.PMI:Performance_monitoring_interrupts 7415 ± 8% -32.9% 4973 ± 9% interrupts.CPU70.NMI:Non-maskable_interrupts 7415 ± 8% -32.9% 4973 ± 9% interrupts.CPU70.PMI:Performance_monitoring_interrupts 102.00 ± 64% +195.8% 301.75 ± 50% interrupts.CPU70.RES:Rescheduling_interrupts 7463 ± 7% -32.9% 5005 ± 9% interrupts.CPU71.NMI:Non-maskable_interrupts 7463 ± 7% -32.9% 5005 ± 9% interrupts.CPU71.PMI:Performance_monitoring_interrupts 7502 ± 8% -38.2% 4635 ± 20% interrupts.CPU72.NMI:Non-maskable_interrupts 7502 ± 8% -38.2% 4635 ± 20% interrupts.CPU72.PMI:Performance_monitoring_interrupts 65.00 ± 58% +181.9% 183.25 ± 28% interrupts.CPU72.RES:Rescheduling_interrupts 7426 ± 8% -38.4% 4574 ± 30% interrupts.CPU73.NMI:Non-maskable_interrupts 7426 ± 8% -38.4% 4574 ± 30% interrupts.CPU73.PMI:Performance_monitoring_interrupts 7444 ± 8% -40.4% 4434 ± 28% interrupts.CPU74.NMI:Non-maskable_interrupts 7444 ± 8% -40.4% 4434 ± 28% interrupts.CPU74.PMI:Performance_monitoring_interrupts 7454 ± 8% -38.9% 4558 ± 24% interrupts.CPU75.NMI:Non-maskable_interrupts 7454 ± 8% -38.9% 4558 ± 24% interrupts.CPU75.PMI:Performance_monitoring_interrupts 7446 ± 8% -32.6% 5017 ± 7% interrupts.CPU76.NMI:Non-maskable_interrupts 7446 ± 8% -32.6% 5017 ± 7% interrupts.CPU76.PMI:Performance_monitoring_interrupts 7465 ± 6% -32.5% 5035 ± 10% interrupts.CPU77.NMI:Non-maskable_interrupts 7465 ± 6% -32.5% 5035 ± 10% interrupts.CPU77.PMI:Performance_monitoring_interrupts 206.00 ± 59% -64.7% 72.75 ± 26% interrupts.CPU77.RES:Rescheduling_interrupts 7424 ± 9% -40.9% 4386 ± 28% interrupts.CPU78.NMI:Non-maskable_interrupts 7424 ± 9% -40.9% 4386 ± 28% interrupts.CPU78.PMI:Performance_monitoring_interrupts 76.00 ± 78% +204.3% 231.25 ± 53% interrupts.CPU78.RES:Rescheduling_interrupts 7717 ± 2% -43.0% 4399 ± 29% interrupts.CPU79.NMI:Non-maskable_interrupts 7717 ± 2% -43.0% 4399 ± 29% interrupts.CPU79.PMI:Performance_monitoring_interrupts 7454 ± 8% -48.8% 3813 ± 36% interrupts.CPU8.NMI:Non-maskable_interrupts 7454 ± 8% -48.8% 3813 ± 36% interrupts.CPU8.PMI:Performance_monitoring_interrupts 148.33 ± 52% +132.1% 344.25 ± 65% interrupts.CPU8.RES:Rescheduling_interrupts 7484 ± 7% -32.4% 5061 ± 6% interrupts.CPU80.NMI:Non-maskable_interrupts 7484 ± 7% -32.4% 5061 ± 6% interrupts.CPU80.PMI:Performance_monitoring_interrupts 100.00 ± 76% +164.2% 264.25 ± 67% interrupts.CPU80.RES:Rescheduling_interrupts 7523 ± 7% -33.3% 5017 ± 8% interrupts.CPU82.NMI:Non-maskable_interrupts 7523 ± 7% -33.3% 5017 ± 8% interrupts.CPU82.PMI:Performance_monitoring_interrupts 7446 ± 8% -33.5% 4949 ± 7% interrupts.CPU83.NMI:Non-maskable_interrupts 7446 ± 8% -33.5% 4949 ± 7% interrupts.CPU83.PMI:Performance_monitoring_interrupts 2219 -17.7% 1826 ± 8% interrupts.CPU84.CAL:Function_call_interrupts 7423 ± 8% -25.3% 5545 ± 9% interrupts.CPU84.NMI:Non-maskable_interrupts 7423 ± 8% -25.3% 5545 ± 9% interrupts.CPU84.PMI:Performance_monitoring_interrupts 161.00 ± 52% +207.9% 495.75 ± 34% interrupts.CPU84.RES:Rescheduling_interrupts 7611 ± 5% -34.6% 4981 ± 8% interrupts.CPU85.NMI:Non-maskable_interrupts 7611 ± 5% -34.6% 4981 ± 8% interrupts.CPU85.PMI:Performance_monitoring_interrupts 7510 ± 7% -33.9% 4964 ± 8% interrupts.CPU86.NMI:Non-maskable_interrupts 7510 ± 7% -33.9% 4964 ± 8% interrupts.CPU86.PMI:Performance_monitoring_interrupts 56.67 ± 65% +193.8% 166.50 ± 45% interrupts.CPU87.RES:Rescheduling_interrupts 7461 ± 7% -41.1% 4392 ± 25% interrupts.CPU9.NMI:Non-maskable_interrupts 7461 ± 7% -41.1% 4392 ± 25% interrupts.CPU9.PMI:Performance_monitoring_interrupts 615899 ± 8% -30.9% 425828 ± 8% interrupts.NMI:Non-maskable_interrupts 615899 ± 8% -30.9% 425828 ± 8% interrupts.PMI:Performance_monitoring_interrupts 224.00 ± 5% +124.7% 503.25 ± 6% interrupts.TLB:TLB_shootdowns *************************************************************************************************** lkp-skl-2sp6: 72 threads Intel(R) Xeon(R) Gold 6139 CPU @ 2.30GHz with 128G memory ========================================================================================= compiler/cpufreq_governor/kconfig/rootfs/runtime/size/tbox_group/test/testcase/ucode: gcc-7/performance/x86_64-rhel-7.6/debian-x86_64-2019-03-19.cgz/300s/16G/lkp-skl-2sp6/shm-pread-rand/vm-scalability/0x200005a commit: f568cf93ca ("vfs: Convert smackfs to use the new mount API") 27eb9d500d ("vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API") f568cf93ca0923a0 27eb9d500d71d93e2b2f55c226b ---------------- --------------------------- fail:runs %reproduction fail:runs | | | :4 25% 1:4 kmsg.Firmware_Bug]:the_BIOS_has_corrupted_hw-PMU_resources(MSR#is#c5) %stddev %change %stddev \ | \ 29.34 -50.3% 14.58 vm-scalability.free_time 57369 -33.5% 38169 vm-scalability.median 4128975 -33.3% 2753755 vm-scalability.throughput 338.83 -5.6% 319.89 vm-scalability.time.elapsed_time 338.83 -5.6% 319.89 vm-scalability.time.elapsed_time.max 65853236 -50.0% 32927302 vm-scalability.time.maximum_resident_set_size 1.18e+08 -50.0% 59015896 vm-scalability.time.minor_page_faults 6995 +1.3% 7086 vm-scalability.time.percent_of_cpu_this_job_got 4355 -51.8% 2097 ± 3% vm-scalability.time.system_time 19346 +6.3% 20571 vm-scalability.time.user_time 1.239e+09 -33.2% 8.276e+08 vm-scalability.workload 0.72 -13.0% 0.62 ± 8% boot-time.smp_boot 470049 ± 9% -26.9% 343394 ± 25% cpuidle.C1.time 1115118 ± 28% -36.4% 708982 ± 25% cpuidle.C1E.usage 3.07 -1.3 1.74 ± 14% mpstat.cpu.all.idle% 17.84 -8.7 9.12 ± 3% mpstat.cpu.all.sys% 79.09 +10.0 89.13 mpstat.cpu.all.usr% 78.00 +12.8% 88.00 vmstat.cpu.us 64111530 -47.9% 33375595 vmstat.memory.cache 58088987 +60.4% 93196417 vmstat.memory.free 9740248 ± 2% -49.3% 4940013 ± 3% numa-numastat.node0.local_node 9744954 ± 2% -49.3% 4943645 ± 3% numa-numastat.node0.numa_hit 9771507 ± 2% -47.4% 5143109 ± 3% numa-numastat.node1.local_node 9780969 ± 2% -47.3% 5153631 ± 3% numa-numastat.node1.numa_hit 2997 +1.2% 3033 turbostat.Avg_MHz 1114565 ± 28% -36.4% 709071 ± 25% turbostat.C1E 2.82 ± 6% -36.7% 1.79 ± 13% turbostat.CPU%c1 235.19 -3.0% 228.14 turbostat.PkgWatt 92.25 -10.5% 82.55 turbostat.RAMWatt 43.84 +20.8% 52.98 ± 10% sched_debug.cfs_rq:/.util_avg.stddev 1100199 ± 8% -9.1% 1000000 sched_debug.cpu.avg_idle.max 4.47 ± 4% +45.2% 6.49 ± 6% sched_debug.cpu.clock.stddev 4.47 ± 4% +45.2% 6.49 ± 6% sched_debug.cpu.clock_task.stddev 2.93 ± 2% +16.1% 3.40 ± 3% sched_debug.cpu.cpu_load[0].stddev 41.50 ± 6% -9.2% 37.67 ± 8% sched_debug.cpu.cpu_load[3].max 76.58 ± 5% -8.4% 70.17 ± 5% sched_debug.cpu.cpu_load[4].max 7.84 ± 5% -8.6% 7.17 ± 6% sched_debug.cpu.cpu_load[4].stddev 538523 ± 2% -7.2% 500000 sched_debug.cpu.max_idle_balance_cost.max 5402 ± 49% -100.0% 0.00 sched_debug.cpu.max_idle_balance_cost.stddev 918.42 ± 11% -21.8% 717.79 ± 13% sched_debug.cpu.nr_switches.min 6.31 ± 10% -21.6% 4.95 ± 6% sched_debug.cpu.nr_uninterruptible.stddev 9450 ± 2% -16.8% 7861 ± 4% slabinfo.cred_jar.active_objs 9450 ± 2% -16.8% 7861 ± 4% slabinfo.cred_jar.num_objs 691.50 ± 3% +25.8% 869.75 ± 4% slabinfo.dmaengine-unmap-16.active_objs 691.50 ± 3% +25.8% 869.75 ± 4% slabinfo.dmaengine-unmap-16.num_objs 3409 ± 6% -14.1% 2927 ± 7% slabinfo.eventpoll_pwq.active_objs 3409 ± 6% -14.1% 2927 ± 7% slabinfo.eventpoll_pwq.num_objs 270793 -46.9% 143859 slabinfo.radix_tree_node.active_objs 4897 -47.3% 2583 slabinfo.radix_tree_node.active_slabs 274288 -47.3% 144682 slabinfo.radix_tree_node.num_objs 4897 -47.3% 2583 slabinfo.radix_tree_node.num_slabs 3430 -13.8% 2955 ± 10% slabinfo.sock_inode_cache.active_objs 3430 -13.8% 2955 ± 10% slabinfo.sock_inode_cache.num_objs 4061070 -68.8% 1267951 meminfo.Active 4060810 -68.8% 1267700 meminfo.Active(anon) 64101737 -48.1% 33279811 meminfo.Cached 63977519 -49.3% 32444459 meminfo.Committed_AS 59063468 -47.5% 31035002 meminfo.Inactive 59062059 -47.5% 31033620 meminfo.Inactive(anon) 217857 -34.3% 143104 meminfo.KReclaimable 59006761 -47.5% 30978341 meminfo.Mapped 57345075 +61.5% 92600531 meminfo.MemAvailable 57853777 +61.0% 93146626 meminfo.MemFree 73850245 -47.8% 38557396 meminfo.Memused 8905110 -49.3% 4516171 meminfo.PageTables 217857 -34.3% 143104 meminfo.SReclaimable 62878730 -49.0% 32056754 meminfo.Shmem 341526 -22.2% 265855 meminfo.Slab 236622 -45.7% 128474 meminfo.max_used_kB 1017564 -68.8% 317803 proc-vmstat.nr_active_anon 1430333 +61.5% 2309494 proc-vmstat.nr_dirty_background_threshold 2864165 +61.5% 4624641 proc-vmstat.nr_dirty_threshold 16010805 -48.0% 8323862 proc-vmstat.nr_file_pages 14478526 +60.8% 23283066 proc-vmstat.nr_free_pages 14748269 -47.4% 7761184 proc-vmstat.nr_inactive_anon 14734597 -47.4% 7747479 proc-vmstat.nr_mapped 2226081 -49.3% 1128924 proc-vmstat.nr_page_table_pages 15704787 -48.9% 8017833 proc-vmstat.nr_shmem 54423 -34.2% 35794 proc-vmstat.nr_slab_reclaimable 1017564 -68.8% 317803 proc-vmstat.nr_zone_active_anon 14748269 -47.4% 7761184 proc-vmstat.nr_zone_inactive_anon 19553150 -48.2% 10125086 proc-vmstat.numa_hit 19538971 -48.3% 10110918 proc-vmstat.numa_local 16473553 -50.0% 8241083 proc-vmstat.pgactivate 19639546 -48.1% 10194611 proc-vmstat.pgalloc_normal 1.189e+08 -49.7% 59831195 proc-vmstat.pgfault 19263642 -47.7% 10066386 proc-vmstat.pgfree 2040989 -68.7% 638086 ± 5% numa-meminfo.node0.Active 2040759 -68.7% 637895 ± 5% numa-meminfo.node0.Active(anon) 32255633 -49.2% 16382022 ± 2% numa-meminfo.node0.FilePages 29703056 -48.7% 15251546 ± 2% numa-meminfo.node0.Inactive 29702146 -48.7% 15250514 ± 2% numa-meminfo.node0.Inactive(anon) 129237 ± 27% -47.4% 67973 ± 26% numa-meminfo.node0.KReclaimable 29669464 -48.7% 15233801 ± 2% numa-meminfo.node0.Mapped 28353196 ± 2% +65.3% 46863502 numa-meminfo.node0.MemFree 37324122 ± 2% -49.6% 18813817 ± 4% numa-meminfo.node0.MemUsed 4634020 ± 8% -55.8% 2049728 ± 16% numa-meminfo.node0.PageTables 129237 ± 27% -47.4% 67973 ± 26% numa-meminfo.node0.SReclaimable 31643856 -50.2% 15768034 ± 2% numa-meminfo.node0.Shmem 198838 ± 19% -31.5% 136214 ± 13% numa-meminfo.node0.Slab 2060932 -68.9% 641532 ± 5% numa-meminfo.node1.Active 2060902 -68.9% 641471 ± 5% numa-meminfo.node1.Active(anon) 31779623 -46.8% 16909618 ± 2% numa-meminfo.node1.FilePages 29252029 -46.0% 15782612 ± 2% numa-meminfo.node1.Inactive 29251531 -46.0% 15782260 ± 2% numa-meminfo.node1.Inactive(anon) 29228867 -46.1% 15743623 ± 2% numa-meminfo.node1.Mapped 29571324 ± 2% +56.5% 46273312 numa-meminfo.node1.MemFree 36455379 ± 2% -45.8% 19753390 ± 4% numa-meminfo.node1.MemUsed 4267926 ± 8% -42.2% 2465282 ± 13% numa-meminfo.node1.PageTables 31167329 -47.7% 16299492 ± 2% numa-meminfo.node1.Shmem 511423 -68.7% 160010 ± 5% numa-vmstat.node0.nr_active_anon 8071576 -49.3% 4095377 ± 2% numa-vmstat.node0.nr_file_pages 7080740 ± 2% +65.5% 11715896 numa-vmstat.node0.nr_free_pages 7431980 -48.7% 3811956 ± 2% numa-vmstat.node0.nr_inactive_anon 7423898 -48.7% 3807846 ± 2% numa-vmstat.node0.nr_mapped 1158358 ± 8% -55.8% 512451 ± 16% numa-vmstat.node0.nr_page_table_pages 7918632 -50.2% 3941880 ± 2% numa-vmstat.node0.nr_shmem 32332 ± 27% -47.4% 16993 ± 26% numa-vmstat.node0.nr_slab_reclaimable 511422 -68.7% 160010 ± 5% numa-vmstat.node0.nr_zone_active_anon 7431981 -48.7% 3811955 ± 2% numa-vmstat.node0.nr_zone_inactive_anon 9835567 ± 2% -47.3% 5178639 ± 3% numa-vmstat.node0.numa_hit 9830733 ± 2% -47.4% 5174906 ± 3% numa-vmstat.node0.numa_local 516488 -68.8% 160936 ± 5% numa-vmstat.node1.nr_active_anon 7952400 -46.8% 4227427 ± 2% numa-vmstat.node1.nr_file_pages 7385447 ± 2% +56.6% 11567830 numa-vmstat.node1.nr_free_pages 7319116 -46.1% 3945017 ± 2% numa-vmstat.node1.nr_inactive_anon 7313529 -46.2% 3935419 ± 2% numa-vmstat.node1.nr_mapped 244.00 -63.8% 88.25 ±100% numa-vmstat.node1.nr_mlock 1066849 ± 8% -42.2% 616680 ± 13% numa-vmstat.node1.nr_page_table_pages 7799327 -47.8% 4074895 ± 2% numa-vmstat.node1.nr_shmem 516486 -68.8% 160936 ± 5% numa-vmstat.node1.nr_zone_active_anon 7319114 -46.1% 3945017 ± 2% numa-vmstat.node1.nr_zone_inactive_anon 9691224 ± 2% -45.0% 5332953 ± 3% numa-vmstat.node1.numa_hit 9507279 ± 2% -45.9% 5147811 ± 3% numa-vmstat.node1.numa_local 47.94 -6.1 41.86 ± 5% perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt 79.61 -2.7 76.88 perf-profile.calltrace.cycles-pp.apic_timer_interrupt 76.03 -2.1 73.88 ± 2% perf-profile.calltrace.cycles-pp.smp_apic_timer_interrupt.apic_timer_interrupt 67.16 -1.8 65.32 ± 2% perf-profile.calltrace.cycles-pp.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt 3.79 ± 3% -1.8 1.97 ± 10% perf-profile.calltrace.cycles-pp.account_user_time.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues 7.12 ± 7% -1.3 5.83 ± 13% perf-profile.calltrace.cycles-pp.ktime_get_update_offsets_now.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt 3.05 -1.0 2.09 ± 25% perf-profile.calltrace.cycles-pp.interrupt_entry 1.36 ± 26% -0.7 0.62 ± 58% perf-profile.calltrace.cycles-pp.ktime_get.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt 1.50 ± 2% -0.6 0.93 ± 13% perf-profile.calltrace.cycles-pp.timerqueue_del.__remove_hrtimer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt 1.71 ± 2% -0.5 1.20 ± 12% perf-profile.calltrace.cycles-pp.__remove_hrtimer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt 3.35 ± 2% -0.5 2.85 ± 7% perf-profile.calltrace.cycles-pp.interrupt_entry.apic_timer_interrupt 1.80 ± 5% -0.4 1.40 ± 16% perf-profile.calltrace.cycles-pp.irq_enter.smp_apic_timer_interrupt.apic_timer_interrupt 1.06 ± 6% -0.4 0.69 ± 15% perf-profile.calltrace.cycles-pp.rcu_irq_enter.irq_enter.smp_apic_timer_interrupt.apic_timer_interrupt 1.10 ± 5% -0.3 0.79 ± 33% perf-profile.calltrace.cycles-pp.prepare_exit_to_usermode.swapgs_restore_regs_and_return_to_usermode 1.00 ± 14% -0.2 0.76 ± 10% perf-profile.calltrace.cycles-pp.native_apic_mem_write.smp_apic_timer_interrupt.apic_timer_interrupt 1.20 ± 11% +0.3 1.49 ± 9% perf-profile.calltrace.cycles-pp.__update_load_avg_se.task_tick_fair.scheduler_tick.update_process_times.tick_sched_handle 0.64 ± 4% +0.3 0.97 ± 20% perf-profile.calltrace.cycles-pp.ret_from_fork 0.64 ± 4% +0.3 0.97 ± 20% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork 0.00 +0.7 0.70 ± 17% perf-profile.calltrace.cycles-pp.__do_page_fault.do_page_fault.page_fault 0.00 +0.7 0.71 ± 22% perf-profile.calltrace.cycles-pp.worker_thread.kthread.ret_from_fork 0.00 +0.7 0.71 ± 22% perf-profile.calltrace.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork 0.70 +0.8 1.50 ± 24% perf-profile.calltrace.cycles-pp.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit 0.71 +0.8 1.56 ± 24% perf-profile.calltrace.cycles-pp.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit.printk 0.72 +0.9 1.61 ± 25% perf-profile.calltrace.cycles-pp.serial8250_console_write.console_unlock.vprintk_emit.printk.irq_work_run_list 4.32 ± 5% +0.9 5.22 ± 9% perf-profile.calltrace.cycles-pp.run_local_timers.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues 0.83 +1.0 1.81 ± 24% perf-profile.calltrace.cycles-pp.printk.irq_work_run_list.irq_work_run.smp_irq_work_interrupt.irq_work_interrupt 0.83 +1.0 1.81 ± 24% perf-profile.calltrace.cycles-pp.vprintk_emit.printk.irq_work_run_list.irq_work_run.smp_irq_work_interrupt 0.83 +1.0 1.81 ± 24% perf-profile.calltrace.cycles-pp.console_unlock.vprintk_emit.printk.irq_work_run_list.irq_work_run 263.00 ± 12% -30.7% 182.25 ± 5% interrupts.73:PCI-MSI.70260741-edge.eth3-TxRx-4 254259 -7.7% 234765 ± 2% interrupts.CAL:Function_call_interrupts 7626 +7.3% 8183 ± 6% interrupts.CPU0.NMI:Non-maskable_interrupts 7626 +7.3% 8183 ± 6% interrupts.CPU0.PMI:Performance_monitoring_interrupts 7628 +7.4% 8191 ± 6% interrupts.CPU13.NMI:Non-maskable_interrupts 7628 +7.4% 8191 ± 6% interrupts.CPU13.PMI:Performance_monitoring_interrupts 7617 +7.6% 8192 ± 6% interrupts.CPU15.NMI:Non-maskable_interrupts 7617 +7.6% 8192 ± 6% interrupts.CPU15.PMI:Performance_monitoring_interrupts 55.00 +1010.0% 610.50 ± 89% interrupts.CPU17.RES:Rescheduling_interrupts 263.00 ± 12% -30.7% 182.25 ± 5% interrupts.CPU18.73:PCI-MSI.70260741-edge.eth3-TxRx-4 3499 ± 2% -7.3% 3242 ± 2% interrupts.CPU18.CAL:Function_call_interrupts 7616 +7.4% 8182 ± 6% interrupts.CPU18.NMI:Non-maskable_interrupts 7616 +7.4% 8182 ± 6% interrupts.CPU18.PMI:Performance_monitoring_interrupts 604.50 ± 4% -67.9% 194.25 ± 49% interrupts.CPU19.RES:Rescheduling_interrupts 3563 -8.6% 3255 interrupts.CPU21.CAL:Function_call_interrupts 7609 +7.6% 8187 ± 6% interrupts.CPU22.NMI:Non-maskable_interrupts 7609 +7.6% 8187 ± 6% interrupts.CPU22.PMI:Performance_monitoring_interrupts 474.00 ± 19% -57.2% 202.75 ± 48% interrupts.CPU25.RES:Rescheduling_interrupts 1109 ± 62% -79.2% 231.25 ± 55% interrupts.CPU27.RES:Rescheduling_interrupts 58.50 ± 23% +211.1% 182.00 ± 71% interrupts.CPU3.RES:Rescheduling_interrupts 480.50 ± 17% -58.2% 201.00 ± 53% interrupts.CPU31.RES:Rescheduling_interrupts 450.00 ± 5% -68.0% 144.00 ± 29% interrupts.CPU33.RES:Rescheduling_interrupts 341.00 ± 21% -45.2% 186.75 ± 66% interrupts.CPU34.RES:Rescheduling_interrupts 723.50 ± 77% -90.8% 66.75 ± 56% interrupts.CPU36.RES:Rescheduling_interrupts 29.00 ± 41% +239.7% 98.50 ± 33% interrupts.CPU41.RES:Rescheduling_interrupts 15.50 ± 9% +390.3% 76.00 ± 35% interrupts.CPU42.RES:Rescheduling_interrupts 3695 -11.1% 3287 ± 2% interrupts.CPU43.CAL:Function_call_interrupts 251.00 ± 46% -72.8% 68.25 ± 54% interrupts.CPU44.RES:Rescheduling_interrupts 3659 -9.9% 3297 ± 2% interrupts.CPU48.CAL:Function_call_interrupts 115.50 ± 18% -71.2% 33.25 ±101% interrupts.CPU55.RES:Rescheduling_interrupts 1285 ± 10% -70.8% 374.75 ±125% interrupts.CPU59.RES:Rescheduling_interrupts 3508 -27.2% 2555 ± 48% interrupts.CPU6.CAL:Function_call_interrupts 3638 -11.1% 3234 ± 3% interrupts.CPU62.CAL:Function_call_interrupts 3636 -9.8% 3279 ± 2% interrupts.CPU63.CAL:Function_call_interrupts 110.00 ± 39% -55.5% 49.00 ± 91% interrupts.CPU65.RES:Rescheduling_interrupts 173.50 ± 50% -62.0% 66.00 ± 34% interrupts.CPU66.RES:Rescheduling_interrupts 3607 -28.3% 2584 ± 47% interrupts.CPU68.CAL:Function_call_interrupts 49.00 ± 4% +120.4% 108.00 ± 64% interrupts.CPU68.RES:Rescheduling_interrupts 3591 -10.1% 3228 interrupts.CPU71.CAL:Function_call_interrupts 79.00 ± 8% +388.3% 385.75 ± 42% interrupts.CPU9.RES:Rescheduling_interrupts 24.57 -5.2% 23.29 perf-stat.i.MPKI 6.019e+09 -17.5% 4.965e+09 perf-stat.i.branch-instructions 0.22 ± 3% -0.1 0.15 ± 5% perf-stat.i.branch-miss-rate% 8375301 -31.9% 5702870 ± 6% perf-stat.i.branch-misses 74.12 +10.5 84.59 perf-stat.i.cache-miss-rate% 5.203e+08 -15.8% 4.38e+08 perf-stat.i.cache-misses 6.67e+08 -24.3% 5.052e+08 perf-stat.i.cache-references 8.41 +20.4% 10.13 perf-stat.i.cpi 2.149e+11 +1.3% 2.178e+11 perf-stat.i.cpu-cycles 655.72 -6.9% 610.25 perf-stat.i.cycles-between-cache-misses 2.96 +0.3 3.29 perf-stat.i.dTLB-load-miss-rate% 2.507e+08 -13.9% 2.158e+08 perf-stat.i.dTLB-load-misses 7.517e+09 -17.7% 6.186e+09 perf-stat.i.dTLB-loads 0.03 ± 3% -0.0 0.03 ± 11% perf-stat.i.dTLB-store-miss-rate% 881950 ± 3% -27.7% 637506 ± 10% perf-stat.i.dTLB-store-misses 2.644e+09 -17.6% 2.18e+09 perf-stat.i.dTLB-stores 748152 -41.7% 436041 ± 2% perf-stat.i.iTLB-load-misses 51192 ± 19% -29.8% 35952 ± 19% perf-stat.i.iTLB-loads 2.617e+10 -17.8% 2.152e+10 perf-stat.i.instructions 166690 ± 2% -12.3% 146120 ± 3% perf-stat.i.instructions-per-iTLB-miss 0.14 -22.0% 0.11 perf-stat.i.ipc 349429 -46.8% 186018 perf-stat.i.minor-faults 2.037e+08 ± 2% -14.3% 1.745e+08 ± 6% perf-stat.i.node-load-misses 3.048e+08 -15.7% 2.57e+08 ± 6% perf-stat.i.node-loads 1273439 ± 2% -45.5% 694360 ± 4% perf-stat.i.node-store-misses 480055 ± 12% -42.6% 275675 ± 8% perf-stat.i.node-stores 349431 -46.8% 186021 perf-stat.i.page-faults 25.47 -7.9% 23.47 perf-stat.overall.MPKI 0.14 -0.0 0.12 ± 7% perf-stat.overall.branch-miss-rate% 77.98 +8.7 86.69 perf-stat.overall.cache-miss-rate% 8.22 +23.2% 10.12 perf-stat.overall.cpi 413.74 +20.3% 497.63 perf-stat.overall.cycles-between-cache-misses 3.22 +0.1 3.37 perf-stat.overall.dTLB-load-miss-rate% 0.03 ± 3% -0.0 0.03 ± 10% perf-stat.overall.dTLB-store-miss-rate% 34786 +41.4% 49190 ± 2% perf-stat.overall.instructions-per-iTLB-miss 0.12 -18.8% 0.10 perf-stat.overall.ipc 7133 +16.5% 8310 perf-stat.overall.path-length 5.996e+09 -17.5% 4.948e+09 perf-stat.ps.branch-instructions 8402682 -31.9% 5720811 ± 6% perf-stat.ps.branch-misses 5.179e+08 -15.8% 4.363e+08 perf-stat.ps.cache-misses 6.641e+08 -24.2% 5.033e+08 perf-stat.ps.cache-references 2.143e+11 +1.3% 2.171e+11 perf-stat.ps.cpu-cycles 2.495e+08 -13.8% 2.15e+08 perf-stat.ps.dTLB-load-misses 7.488e+09 -17.7% 6.165e+09 perf-stat.ps.dTLB-loads 880618 ± 3% -27.8% 636134 ± 10% perf-stat.ps.dTLB-store-misses 2.634e+09 -17.5% 2.172e+09 perf-stat.ps.dTLB-stores 749535 -41.8% 436237 ± 2% perf-stat.ps.iTLB-load-misses 51054 ± 19% -29.7% 35915 ± 19% perf-stat.ps.iTLB-loads 2.607e+10 -17.8% 2.144e+10 perf-stat.ps.instructions 350552 -46.8% 186443 perf-stat.ps.minor-faults 2.027e+08 ± 2% -14.2% 1.739e+08 ± 6% perf-stat.ps.node-load-misses 3.033e+08 -15.6% 2.56e+08 ± 6% perf-stat.ps.node-loads 1276424 ± 2% -45.4% 696879 ± 4% perf-stat.ps.node-store-misses 483087 ± 13% -42.6% 277396 ± 9% perf-stat.ps.node-stores 350552 -46.8% 186443 perf-stat.ps.page-faults 8.84e+12 -22.2% 6.878e+12 perf-stat.total.instructions 134477 ± 4% -12.2% 118031 ± 4% softirqs.CPU0.TIMER 129516 ± 3% -10.3% 116158 ± 5% softirqs.CPU1.TIMER 137061 ± 7% -11.5% 121271 ± 2% softirqs.CPU10.TIMER 134708 ± 8% -12.2% 118210 softirqs.CPU13.TIMER 138931 ± 8% -14.0% 119458 ± 2% softirqs.CPU14.TIMER 28768 +10.5% 31792 ± 5% softirqs.CPU15.RCU 136131 ± 9% -12.7% 118857 ± 2% softirqs.CPU15.TIMER 132792 ± 3% -7.7% 122562 softirqs.CPU16.TIMER 143921 ± 4% -16.2% 120596 ± 4% softirqs.CPU18.TIMER 145168 ± 3% -17.5% 119736 ± 5% softirqs.CPU19.TIMER 153122 ± 16% -23.8% 116679 ± 3% softirqs.CPU2.TIMER 141372 -16.9% 117480 ± 4% softirqs.CPU20.TIMER 144335 ± 3% -17.9% 118496 ± 3% softirqs.CPU21.TIMER 165007 ± 11% -27.5% 119554 ± 4% softirqs.CPU22.TIMER 142200 ± 2% -17.0% 118044 ± 5% softirqs.CPU23.TIMER 141063 ± 5% -15.9% 118601 ± 4% softirqs.CPU24.TIMER 138963 ± 4% -16.5% 116070 ± 6% softirqs.CPU25.TIMER 141346 ± 4% -15.8% 118964 ± 5% softirqs.CPU27.TIMER 140996 ± 5% -16.9% 117149 ± 5% softirqs.CPU28.TIMER 141709 ± 5% -17.6% 116804 ± 4% softirqs.CPU29.TIMER 139584 ± 4% -15.8% 117486 ± 4% softirqs.CPU30.TIMER 138678 ± 4% -14.9% 117960 ± 6% softirqs.CPU31.TIMER 139778 ± 5% -16.6% 116581 ± 4% softirqs.CPU32.TIMER 138835 ± 4% -16.3% 116168 ± 5% softirqs.CPU33.TIMER 139832 ± 2% -14.3% 119885 ± 4% softirqs.CPU34.TIMER 143088 ± 3% -14.1% 122870 ± 4% softirqs.CPU35.TIMER 145947 ± 5% -11.3% 129393 softirqs.CPU38.TIMER 131003 ± 2% -11.2% 116301 ± 3% softirqs.CPU4.TIMER 130674 ± 4% -9.8% 117891 ± 2% softirqs.CPU42.TIMER 131033 ± 5% -10.0% 117896 ± 3% softirqs.CPU43.TIMER 131812 ± 6% -8.3% 120870 ± 6% softirqs.CPU44.TIMER 133415 ± 6% -11.1% 118651 ± 3% softirqs.CPU45.TIMER 138074 ± 5% -10.5% 123620 softirqs.CPU46.TIMER 133232 ± 5% -6.5% 124597 ± 2% softirqs.CPU47.TIMER 134867 ± 7% -10.9% 120099 softirqs.CPU49.TIMER 133501 ± 3% -11.0% 118863 ± 2% softirqs.CPU5.TIMER 139285 ± 9% -11.0% 124014 ± 2% softirqs.CPU50.TIMER 138112 ± 7% -12.4% 120918 softirqs.CPU51.TIMER 136733 ± 6% -10.7% 122034 ± 2% softirqs.CPU52.TIMER 139399 ± 6% -7.8% 128577 ± 4% softirqs.CPU53.TIMER 144006 ± 3% -16.2% 120664 ± 4% softirqs.CPU54.TIMER 144335 ± 2% -15.9% 121369 ± 5% softirqs.CPU55.TIMER 141569 -13.3% 122777 ± 5% softirqs.CPU56.TIMER 142905 -16.0% 120105 ± 3% softirqs.CPU57.TIMER 149917 ± 2% -19.6% 120597 ± 4% softirqs.CPU58.TIMER 145062 -16.0% 121875 ± 6% softirqs.CPU59.TIMER 129322 ± 3% -10.2% 116093 ± 4% softirqs.CPU6.TIMER 139051 ± 5% -16.6% 116013 ± 5% softirqs.CPU60.TIMER 136928 ± 5% -16.7% 114040 ± 6% softirqs.CPU61.TIMER 139478 ± 4% -17.0% 115821 ± 5% softirqs.CPU63.TIMER 140188 ± 5% -17.4% 115808 ± 6% softirqs.CPU64.TIMER 139850 ± 5% -18.4% 114185 ± 5% softirqs.CPU65.TIMER 139338 ± 5% -17.6% 114794 ± 4% softirqs.CPU66.TIMER 139162 ± 6% -16.5% 116236 ± 6% softirqs.CPU67.TIMER 138693 ± 4% -17.7% 114160 ± 5% softirqs.CPU68.TIMER 137368 ± 5% -16.1% 115277 ± 5% softirqs.CPU69.TIMER 129982 ± 3% -12.3% 113979 ± 4% softirqs.CPU7.TIMER 136521 ± 3% -15.0% 116043 ± 6% softirqs.CPU70.TIMER 139566 ± 3% -15.0% 118588 ± 6% softirqs.CPU71.TIMER 137034 ± 8% -9.9% 123532 ± 2% softirqs.CPU8.TIMER 139637 ± 6% -12.2% 122590 softirqs.CPU9.TIMER 9979650 ± 4% -13.1% 8675751 ± 3% softirqs.TIMER *************************************************************************************************** lkp-skl-fpga01: 104 threads Skylake with 192G memory ========================================================================================= compiler/cpufreq_governor/kconfig/rootfs/runtime/size/tbox_group/test/testcase: gcc-7/performance/x86_64-rhel-7.6/debian-x86_64-2018-04-03.cgz/300s/1T/lkp-skl-fpga01/lru-shm/vm-scalability commit: f568cf93ca ("vfs: Convert smackfs to use the new mount API") 27eb9d500d ("vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API") f568cf93ca0923a0 27eb9d500d71d93e2b2f55c226b ---------------- --------------------------- fail:runs %reproduction fail:runs | | | 4:4 -1% 4:4 perf-profile.calltrace.cycles-pp.sync_regs.error_entry.do_access %stddev %change %stddev \ | \ 0.03 -51.0% 0.02 vm-scalability.free_time 576244 +5.9% 610398 vm-scalability.median 0.00 ± 10% +52.3% 0.01 ± 3% vm-scalability.median_stddev 59786024 +6.2% 63492278 vm-scalability.throughput 243.93 +2.5% 250.02 vm-scalability.time.elapsed_time 243.93 +2.5% 250.02 vm-scalability.time.elapsed_time.max 43465 ± 4% +7.9% 46892 ± 4% vm-scalability.time.involuntary_context_switches 946724 -50.0% 473636 vm-scalability.time.maximum_resident_set_size 5.177e+08 +2.6% 5.313e+08 vm-scalability.time.minor_page_faults 1756 -5.1% 1666 vm-scalability.time.percent_of_cpu_this_job_got 3116 -3.8% 2998 vm-scalability.time.system_time 31133 +104.1% 63552 vm-scalability.time.voluntary_context_switches 2.324e+09 +2.4% 2.379e+09 vm-scalability.workload 0.00 ±110% +0.0 0.00 ±139% mpstat.cpu.all.iowait% 499.00 -1.6% 491.00 turbostat.Avg_MHz 913171 ± 41% +828.6% 8479745 ± 90% turbostat.C6 3.09 ± 44% +20.9 23.95 ±103% turbostat.C6% 50080150 -48.8% 25663962 vmstat.memory.cache 1.458e+08 +16.7% 1.702e+08 vmstat.memory.free 3501 +32.4% 4637 vmstat.system.cs 7.929e+08 ± 44% +687.9% 6.248e+09 ±103% cpuidle.C6.time 926892 ± 40% +816.6% 8496018 ± 90% cpuidle.C6.usage 190135 ± 3% +152.6% 480192 ± 88% cpuidle.POLL.time 84219 ± 2% +34.4% 113180 ± 9% cpuidle.POLL.usage 40696 ± 15% -26.5% 29917 ± 13% softirqs.CPU4.RCU 44474 ± 29% -35.9% 28525 softirqs.CPU42.RCU 30262 ± 9% +19.5% 36161 ± 15% softirqs.CPU63.RCU 29764 ± 6% +27.6% 37992 ± 13% softirqs.CPU65.RCU 50166780 -48.9% 25654809 meminfo.Cached 49347199 -50.1% 24617888 meminfo.Committed_AS 48930891 -50.1% 24417186 meminfo.Inactive 48929311 -50.1% 24415179 meminfo.Inactive(anon) 1579 +27.0% 2006 meminfo.Inactive(file) 188217 -30.3% 131272 meminfo.KReclaimable 7916315 -53.0% 3720091 ± 2% meminfo.Mapped 1.447e+08 +17.0% 1.693e+08 meminfo.MemAvailable 1.455e+08 +16.9% 1.701e+08 meminfo.MemFree 51232587 -48.0% 26665161 meminfo.Memused 19466 -39.0% 11869 ± 2% meminfo.PageTables 188217 -30.3% 131272 meminfo.SReclaimable 48944461 -50.1% 24432065 meminfo.Shmem 348076 -14.6% 297129 meminfo.Slab 413517 -50.2% 206120 meminfo.max_used_kB 6226812 ± 15% -48.7% 3192024 ± 15% numa-vmstat.node0.nr_file_pages 18066381 ± 5% +16.8% 21103373 ± 2% numa-vmstat.node0.nr_free_pages 6074426 ± 15% -50.0% 3038706 ± 16% numa-vmstat.node0.nr_inactive_anon 306.25 ± 10% -34.4% 201.00 ± 47% numa-vmstat.node0.nr_inactive_file 987437 ± 3% -53.6% 458349 numa-vmstat.node0.nr_mapped 2482 ± 10% -40.2% 1484 ± 18% numa-vmstat.node0.nr_page_table_pages 6076001 ± 15% -50.0% 3040939 ± 16% numa-vmstat.node0.nr_shmem 24272 ± 5% -34.8% 15832 ± 9% numa-vmstat.node0.nr_slab_reclaimable 6074321 ± 15% -50.0% 3038614 ± 16% numa-vmstat.node0.nr_zone_inactive_anon 306.25 ± 10% -34.4% 201.00 ± 47% numa-vmstat.node0.nr_zone_inactive_file 6314888 ± 14% -48.9% 3229891 ± 15% numa-vmstat.node1.nr_file_pages 18310535 ± 4% +16.9% 21407188 ± 2% numa-vmstat.node1.nr_free_pages 6157626 ± 14% -50.1% 3073024 ± 16% numa-vmstat.node1.nr_inactive_anon 88.00 ± 34% +240.3% 299.50 ± 31% numa-vmstat.node1.nr_inactive_file 989014 ± 3% -51.0% 484627 numa-vmstat.node1.nr_mapped 2428 ± 9% -39.7% 1463 ± 14% numa-vmstat.node1.nr_page_table_pages 6159861 ± 14% -50.1% 3075031 ± 16% numa-vmstat.node1.nr_shmem 22813 ± 4% -25.5% 17007 ± 8% numa-vmstat.node1.nr_slab_reclaimable 6157554 ± 14% -50.1% 3072951 ± 16% numa-vmstat.node1.nr_zone_inactive_anon 88.00 ± 34% +240.3% 299.50 ± 31% numa-vmstat.node1.nr_zone_inactive_file 271.00 +81.2% 491.00 proc-vmstat.nr_dirtied 3610614 +17.0% 4223136 proc-vmstat.nr_dirty_background_threshold 7230238 +17.0% 8456814 proc-vmstat.nr_dirty_threshold 12540351 -48.8% 6420021 proc-vmstat.nr_file_pages 36378024 +16.9% 42512287 proc-vmstat.nr_free_pages 12230694 -50.0% 6109850 proc-vmstat.nr_inactive_anon 394.75 +27.0% 501.25 proc-vmstat.nr_inactive_file 16101 +1.3% 16303 proc-vmstat.nr_kernel_stack 1996785 ± 3% -52.8% 941936 proc-vmstat.nr_mapped 4896 ± 3% -40.0% 2936 proc-vmstat.nr_page_table_pages 12234511 -50.0% 6114074 proc-vmstat.nr_shmem 47085 -30.2% 32861 proc-vmstat.nr_slab_reclaimable 39964 +3.8% 41464 proc-vmstat.nr_slab_unreclaimable 257.25 ± 3% +88.2% 484.25 proc-vmstat.nr_written 12230693 -50.0% 6109850 proc-vmstat.nr_zone_inactive_anon 394.75 +27.0% 501.25 proc-vmstat.nr_zone_inactive_file 14321 ± 18% -51.9% 6891 ± 58% proc-vmstat.numa_hint_faults 5.192e+08 +2.6% 5.325e+08 proc-vmstat.numa_hit 5.192e+08 +2.6% 5.325e+08 proc-vmstat.numa_local 5.203e+08 +2.6% 5.336e+08 proc-vmstat.pgalloc_normal 5.183e+08 +2.6% 5.32e+08 proc-vmstat.pgfault 5.195e+08 +2.6% 5.329e+08 proc-vmstat.pgfree 24881812 ± 15% -48.7% 12770223 ± 15% numa-meminfo.node0.FilePages 24273499 ± 16% -49.9% 12157797 ± 16% numa-meminfo.node0.Inactive 24272273 ± 16% -49.9% 12156990 ± 16% numa-meminfo.node0.Inactive(anon) 1225 ± 9% -34.2% 806.25 ± 47% numa-meminfo.node0.Inactive(file) 97123 ± 5% -34.7% 63384 ± 9% numa-meminfo.node0.KReclaimable 4011265 ± 3% -54.1% 1841181 numa-meminfo.node0.Mapped 72290696 ± 5% +16.8% 84410927 ± 2% numa-meminfo.node0.MemFree 25393898 ± 15% -47.7% 13273667 ± 14% numa-meminfo.node0.MemUsed 9880 ± 11% -40.2% 5904 ± 17% numa-meminfo.node0.PageTables 97123 ± 5% -34.7% 63384 ± 9% numa-meminfo.node0.SReclaimable 24278558 ± 16% -49.9% 12165871 ± 16% numa-meminfo.node0.Shmem 189220 -22.1% 147434 ± 9% numa-meminfo.node0.Slab 25264418 ± 13% -48.9% 12911196 ± 15% numa-meminfo.node1.FilePages 24635696 ± 14% -50.1% 12284951 ± 16% numa-meminfo.node1.Inactive 24635342 ± 14% -50.1% 12283751 ± 16% numa-meminfo.node1.Inactive(anon) 353.50 ± 34% +239.4% 1199 ± 31% numa-meminfo.node1.Inactive(file) 91245 ± 4% -25.5% 68019 ± 8% numa-meminfo.node1.KReclaimable 3913740 ± 4% -49.7% 1969074 numa-meminfo.node1.Mapped 73237280 ± 4% +16.9% 85636740 ± 2% numa-meminfo.node1.MemFree 25816602 ± 13% -48.0% 13417142 ± 14% numa-meminfo.node1.MemUsed 9593 ± 9% -38.8% 5870 ± 17% numa-meminfo.node1.PageTables 91245 ± 4% -25.5% 68019 ± 8% numa-meminfo.node1.SReclaimable 24644294 ± 14% -50.1% 12291753 ± 16% numa-meminfo.node1.Shmem 21626 +28.6% 27808 ± 3% slabinfo.anon_vma.active_objs 469.75 +28.6% 604.00 ± 3% slabinfo.anon_vma.active_slabs 21626 +28.6% 27808 ± 3% slabinfo.anon_vma.num_objs 469.75 +28.6% 604.00 ± 3% slabinfo.anon_vma.num_slabs 40574 ± 2% +22.0% 49501 slabinfo.anon_vma_chain.active_objs 634.00 ± 2% +22.0% 773.50 slabinfo.anon_vma_chain.active_slabs 40594 ± 2% +22.1% 49547 slabinfo.anon_vma_chain.num_objs 634.00 ± 2% +22.0% 773.50 slabinfo.anon_vma_chain.num_slabs 1597 ± 12% +16.0% 1852 ± 3% slabinfo.avc_xperms_data.active_objs 1597 ± 12% +16.0% 1852 ± 3% slabinfo.avc_xperms_data.num_objs 13724 ± 2% +15.7% 15879 ± 6% slabinfo.cred_jar.active_objs 13724 ± 2% +15.7% 15879 ± 6% slabinfo.cred_jar.num_objs 214679 -45.6% 116688 slabinfo.radix_tree_node.active_objs 3911 -44.8% 2158 slabinfo.radix_tree_node.active_slabs 219065 -44.8% 120925 slabinfo.radix_tree_node.num_objs 3911 -44.8% 2158 slabinfo.radix_tree_node.num_slabs 3190 +12.4% 3586 slabinfo.sighand_cache.active_objs 3191 +12.7% 3595 slabinfo.sighand_cache.num_objs 1032 ± 7% +44.0% 1486 ± 6% slabinfo.skbuff_ext_cache.active_objs 1051 ± 5% +43.4% 1507 ± 5% slabinfo.skbuff_ext_cache.num_objs 40306 ± 2% +14.4% 46096 ± 2% slabinfo.vm_area_struct.active_objs 1007 ± 2% +14.5% 1153 ± 2% slabinfo.vm_area_struct.active_slabs 40314 ± 2% +14.5% 46143 ± 2% slabinfo.vm_area_struct.num_objs 1007 ± 2% +14.5% 1153 ± 2% slabinfo.vm_area_struct.num_slabs 323228 ± 55% -50.5% 159938 ± 22% sched_debug.cfs_rq:/.load.max 2195909 -10.8% 1958320 sched_debug.cfs_rq:/.min_vruntime.avg 2099869 -13.5% 1815790 sched_debug.cfs_rq:/.min_vruntime.min 36020 ± 4% +34.7% 48534 ± 9% sched_debug.cfs_rq:/.min_vruntime.stddev 229.45 ± 12% -32.9% 153.90 ± 23% sched_debug.cfs_rq:/.runnable_load_avg.max 321968 ± 56% -51.0% 157788 ± 23% sched_debug.cfs_rq:/.runnable_weight.max 66477 ± 17% +110.2% 139739 ± 23% sched_debug.cfs_rq:/.spread0.avg 134057 ± 20% +119.7% 294519 ± 16% sched_debug.cfs_rq:/.spread0.max -29537 -91.4% -2550 sched_debug.cfs_rq:/.spread0.min 35997 ± 4% +34.7% 48487 ± 9% sched_debug.cfs_rq:/.spread0.stddev 175.30 ± 14% -63.9% 63.35 ±100% sched_debug.cfs_rq:/.util_avg.min 192.91 ± 7% +39.8% 269.72 ± 12% sched_debug.cfs_rq:/.util_avg.stddev 80.48 ± 13% +51.5% 121.95 ± 14% sched_debug.cfs_rq:/.util_est_enqueued.stddev 138814 ± 7% +25.3% 173956 ± 3% sched_debug.cpu.avg_idle.stddev 274.40 ± 16% -27.3% 199.50 ± 21% sched_debug.cpu.cpu_load[2].max 315.45 ± 12% -35.1% 204.70 ± 28% sched_debug.cpu.cpu_load[3].max 373.85 ± 8% -34.7% 243.95 ± 25% sched_debug.cpu.cpu_load[4].max 10724 +50.7% 16157 sched_debug.cpu.curr->pid.max 1467 +115.4% 3160 ± 29% sched_debug.cpu.curr->pid.stddev 323228 ± 55% -50.5% 159938 ± 22% sched_debug.cpu.load.max 2099 ± 11% +54.3% 3239 ± 22% sched_debug.cpu.nr_load_updates.stddev 0.21 ± 4% +23.1% 0.26 ± 13% sched_debug.cpu.nr_running.stddev 4564 +31.8% 6015 sched_debug.cpu.nr_switches.avg 43664 ± 27% +43.3% 62587 ± 13% sched_debug.cpu.nr_switches.max 1176 ± 8% +50.8% 1773 ± 7% sched_debug.cpu.nr_switches.min 5768 ± 13% +26.4% 7290 ± 8% sched_debug.cpu.nr_switches.stddev 1018 ± 32% +172.8% 2778 ± 40% interrupts.CPU0.RES:Rescheduling_interrupts 24.00 ± 51% +266.7% 88.00 ± 63% interrupts.CPU100.TLB:TLB_shootdowns 82.00 ± 41% +251.2% 288.00 ± 71% interrupts.CPU14.RES:Rescheduling_interrupts 99.75 ± 69% +111.8% 211.25 ± 21% interrupts.CPU17.RES:Rescheduling_interrupts 134.50 ± 54% +650.0% 1008 ±122% interrupts.CPU18.RES:Rescheduling_interrupts 1730 ± 8% -31.8% 1180 ± 34% interrupts.CPU2.NMI:Non-maskable_interrupts 1730 ± 8% -31.8% 1180 ± 34% interrupts.CPU2.PMI:Performance_monitoring_interrupts 66.00 ± 6% +2245.1% 1547 ±147% interrupts.CPU21.RES:Rescheduling_interrupts 90.75 ± 38% +239.9% 308.50 ± 49% interrupts.CPU22.RES:Rescheduling_interrupts 36.50 ± 49% +114.4% 78.25 ± 62% interrupts.CPU36.TLB:TLB_shootdowns 103.25 ± 48% +148.7% 256.75 ± 27% interrupts.CPU37.RES:Rescheduling_interrupts 99.00 ± 87% +243.2% 339.75 ± 46% interrupts.CPU5.RES:Rescheduling_interrupts 99.50 ± 61% +163.1% 261.75 ± 34% interrupts.CPU52.RES:Rescheduling_interrupts 99.25 ±117% +256.9% 354.25 ± 60% interrupts.CPU54.RES:Rescheduling_interrupts 70.75 ± 49% +501.4% 425.50 ± 48% interrupts.CPU56.RES:Rescheduling_interrupts 21.00 ± 44% +290.5% 82.00 ± 64% interrupts.CPU64.TLB:TLB_shootdowns 26.50 ± 52% +284.9% 102.00 ± 75% interrupts.CPU67.TLB:TLB_shootdowns 78.75 ± 86% +182.9% 222.75 ± 41% interrupts.CPU69.RES:Rescheduling_interrupts 39.50 ± 27% +372.2% 186.50 ± 68% interrupts.CPU72.RES:Rescheduling_interrupts 108.50 ± 60% +108.5% 226.25 ± 39% interrupts.CPU73.RES:Rescheduling_interrupts 38.25 ± 76% +259.5% 137.50 ± 68% interrupts.CPU73.TLB:TLB_shootdowns 37.50 ± 59% +116.7% 81.25 ± 72% interrupts.CPU85.TLB:TLB_shootdowns 22.50 ± 38% +354.4% 102.25 ± 70% interrupts.CPU87.TLB:TLB_shootdowns 21.75 ± 49% +308.0% 88.75 ± 55% interrupts.CPU89.TLB:TLB_shootdowns 25.00 ± 67% +156.0% 64.00 ± 46% interrupts.CPU94.TLB:TLB_shootdowns 32.75 ± 85% +141.2% 79.00 ± 47% interrupts.CPU96.TLB:TLB_shootdowns 146.25 ± 31% +58.1% 231.25 ± 17% interrupts.CPU99.RES:Rescheduling_interrupts 21099 ± 11% +91.6% 40429 ± 14% interrupts.RES:Rescheduling_interrupts 6445 ± 13% +48.4% 9563 ± 9% interrupts.TLB:TLB_shootdowns 68.61 -4.3 64.28 perf-profile.calltrace.cycles-pp.do_access 58.14 -4.0 54.12 perf-profile.calltrace.cycles-pp.page_fault.do_access 52.63 -4.0 48.62 perf-profile.calltrace.cycles-pp.do_page_fault.page_fault.do_access 52.30 -4.0 48.30 perf-profile.calltrace.cycles-pp.__do_page_fault.do_page_fault.page_fault.do_access 51.01 -4.0 47.02 perf-profile.calltrace.cycles-pp.handle_mm_fault.__do_page_fault.do_page_fault.page_fault.do_access 50.43 -4.0 46.46 perf-profile.calltrace.cycles-pp.__handle_mm_fault.handle_mm_fault.__do_page_fault.do_page_fault.page_fault 40.02 -3.8 36.23 perf-profile.calltrace.cycles-pp.shmem_getpage_gfp.shmem_fault.__do_fault.__handle_mm_fault.handle_mm_fault 40.76 -3.8 36.98 perf-profile.calltrace.cycles-pp.__do_fault.__handle_mm_fault.handle_mm_fault.__do_page_fault.do_page_fault 40.69 -3.8 36.91 perf-profile.calltrace.cycles-pp.shmem_fault.__do_fault.__handle_mm_fault.handle_mm_fault.__do_page_fault 10.70 ± 3% -2.0 8.71 ± 3% perf-profile.calltrace.cycles-pp.pagevec_lru_move_fn.__lru_cache_add.shmem_getpage_gfp.shmem_fault.__do_fault 10.96 ± 3% -2.0 8.99 ± 4% perf-profile.calltrace.cycles-pp.__lru_cache_add.shmem_getpage_gfp.shmem_fault.__do_fault.__handle_mm_fault 8.90 ± 4% -1.9 6.98 ± 4% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.pagevec_lru_move_fn.__lru_cache_add.shmem_getpage_gfp 8.96 ± 4% -1.9 7.04 ± 4% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.pagevec_lru_move_fn.__lru_cache_add.shmem_getpage_gfp.shmem_fault 14.87 ± 4% -1.6 13.27 perf-profile.calltrace.cycles-pp.shmem_alloc_and_acct_page.shmem_getpage_gfp.shmem_fault.__do_fault.__handle_mm_fault 13.23 ± 5% -1.5 11.78 ± 2% perf-profile.calltrace.cycles-pp.shmem_alloc_page.shmem_alloc_and_acct_page.shmem_getpage_gfp.shmem_fault.__do_fault 12.38 ± 5% -1.4 10.94 ± 2% perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_vma.shmem_alloc_page.shmem_alloc_and_acct_page 12.74 ± 5% -1.4 11.30 ± 2% perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.alloc_pages_vma.shmem_alloc_page.shmem_alloc_and_acct_page.shmem_getpage_gfp 12.92 ± 5% -1.4 11.48 ± 2% perf-profile.calltrace.cycles-pp.alloc_pages_vma.shmem_alloc_page.shmem_alloc_and_acct_page.shmem_getpage_gfp.shmem_fault 9.64 ± 6% -1.4 8.21 ± 3% perf-profile.calltrace.cycles-pp._raw_spin_lock.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_vma.shmem_alloc_page 9.49 ± 7% -1.4 8.06 ± 3% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_vma 15.61 -0.6 14.96 perf-profile.calltrace.cycles-pp.do_rw_once 4.94 -0.3 4.66 perf-profile.calltrace.cycles-pp.clear_page_erms.shmem_getpage_gfp.shmem_fault.__do_fault.__handle_mm_fault 0.57 ± 3% -0.2 0.39 ± 57% perf-profile.calltrace.cycles-pp.mem_cgroup_commit_charge.shmem_getpage_gfp.shmem_fault.__do_fault.__handle_mm_fault 0.74 ± 3% -0.1 0.68 ± 4% perf-profile.calltrace.cycles-pp.page_add_file_rmap.alloc_set_pte.finish_fault.__handle_mm_fault.handle_mm_fault 1.20 -0.1 1.14 ± 2% perf-profile.calltrace.cycles-pp.finish_fault.__handle_mm_fault.handle_mm_fault.__do_page_fault.do_page_fault 0.80 ± 2% -0.0 0.76 ± 3% perf-profile.calltrace.cycles-pp.security_vm_enough_memory_mm.shmem_alloc_and_acct_page.shmem_getpage_gfp.shmem_fault.__do_fault 7.84 ± 15% +3.4 11.26 ± 14% perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary 10.37 ± 9% +3.6 13.92 ± 11% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64 11.77 ± 9% +3.6 15.32 ± 9% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64 11.77 ± 9% +3.6 15.32 ± 9% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64 11.77 ± 9% +3.6 15.32 ± 9% perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64 11.87 ± 9% +3.6 15.48 ± 9% perf-profile.calltrace.cycles-pp.secondary_startup_64 3.36 +21.1% 4.07 ± 20% perf-stat.i.MPKI 1.346e+10 +2.2% 1.375e+10 perf-stat.i.branch-instructions 29022778 +7.7% 31267478 ± 5% perf-stat.i.branch-misses 47.72 ± 2% -15.7 32.07 ± 14% perf-stat.i.cache-miss-rate% 43211868 -1.8% 42419129 perf-stat.i.cache-misses 3376 +37.1% 4629 perf-stat.i.context-switches 1.03 +2.9% 1.06 ± 3% perf-stat.i.cpi 72.97 +88.4% 137.51 perf-stat.i.cpu-migrations 799.98 +21.1% 968.56 ± 2% perf-stat.i.cycles-between-cache-misses 0.03 ± 7% +0.0 0.04 ± 20% perf-stat.i.dTLB-load-miss-rate% 1.267e+10 +2.1% 1.294e+10 perf-stat.i.dTLB-loads 0.02 +0.0 0.03 ± 9% perf-stat.i.dTLB-store-miss-rate% 2158638 +2.8% 2218331 perf-stat.i.dTLB-store-misses 3.621e+09 +4.1% 3.771e+09 perf-stat.i.dTLB-stores 23.59 +8.0 31.57 ± 11% perf-stat.i.iTLB-load-miss-rate% 2744828 -9.9% 2473836 ± 3% perf-stat.i.iTLB-load-misses 4.811e+10 +2.9% 4.953e+10 perf-stat.i.instructions 180646 ± 14% -39.9% 108545 ± 35% perf-stat.i.instructions-per-iTLB-miss 2095485 +1.2% 2120039 perf-stat.i.minor-faults 52.46 -2.5 49.94 perf-stat.i.node-load-miss-rate% 2458601 +2.4% 2516686 perf-stat.i.node-loads 43.60 ± 2% -5.8 37.80 ± 3% perf-stat.i.node-store-miss-rate% 7662333 +1.0% 7738567 perf-stat.i.node-stores 2095716 +1.2% 2120269 perf-stat.i.page-faults 0.21 +0.0 0.23 ± 5% perf-stat.overall.branch-miss-rate% 18.95 -0.4 18.52 ± 2% perf-stat.overall.cache-miss-rate% 1.04 -3.5% 1.01 perf-stat.overall.cpi 17502 +14.4% 20023 ± 3% perf-stat.overall.instructions-per-iTLB-miss 0.96 +3.6% 0.99 perf-stat.overall.ipc 52.01 -1.6 50.40 perf-stat.overall.node-load-miss-rate% 5108 +2.1% 5215 perf-stat.overall.path-length 1.359e+10 +1.3% 1.377e+10 perf-stat.ps.branch-instructions 29202158 +7.0% 31254091 ± 5% perf-stat.ps.branch-misses 43522733 -2.5% 42432124 perf-stat.ps.cache-misses 3385 +36.4% 4618 perf-stat.ps.context-switches 5.071e+10 -1.5% 4.994e+10 perf-stat.ps.cpu-cycles 73.95 +86.7% 138.03 perf-stat.ps.cpu-migrations 1.279e+10 +1.3% 1.296e+10 perf-stat.ps.dTLB-loads 3.652e+09 +3.3% 3.774e+09 perf-stat.ps.dTLB-stores 2776127 -10.7% 2478891 ± 3% perf-stat.ps.iTLB-load-misses 4.857e+10 +2.1% 4.959e+10 perf-stat.ps.instructions 2451998 +2.3% 2507985 perf-stat.ps.node-loads 1.187e+13 +4.5% 1.241e+13 perf-stat.total.instructions Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Rong Chen

1 year, 7 months

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[vfs] d4698b98cb: kmsg.e_Pipe_file_descriptor_not_open

by kernel test robot

FYI, we noticed the following commit (built with gcc-7): commit: d4698b98cb1d9990fcdfa6a0577f8a8bcd7786b7 ("vfs: Convert autofs to use the new mount API") https://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git mount-api-viro in testcase: rcutorture with following parameters: runtime: 300s test: default torture_type: srcud test-description: rcutorture is rcutorture kernel module load/unload test. test-url: https://www.kernel.org/doc/Documentation/RCU/torture.txt on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 2G caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): [ 9.938484 ] systemd[1]: RTC configured in localtime, applying delta of 480 minutes to system time. [ 9.955593 ] random: systemd: uninitialized urandom read (16 bytes read) [ 9.957295 ] random: systemd: uninitialized urandom read (16 bytes read) [ 9.958493 ] random: systemd: uninitialized urandom read (16 bytes read) [ 10.019199 ] e Pipe file descriptor not open See 'systemctl status proc-sys-fs-binfmt_misc.automount' for details. Mounting Huge Pages File System... Created slice system-getty.slice. To reproduce: # build kernel cd linux cp config-5.1.0-rc2-00063-gd4698b9 .config make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 prepare make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 modules_prepare make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 SHELL=/bin/bash make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 bzImage git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email Thanks, Rong Chen

1 year, 7 months

1
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[mac80211_hwsim] 5cf94a0ee7: WARNING:at_net/wireless/core.c:#wiphy_register[cfg80211]

by kernel test robot

FYI, we noticed the following commit (built with gcc-7): commit: 5cf94a0ee722f324f8999e77e6cd3112e0c1cb08 ("[PATCH] mac80211_hwsim: calculate if_combination.max_interfaces") url: https://github.com/0day-ci/linux/commits/Johannes-Berg/mac80211_hwsim-cal... base: https://git.kernel.org/cgit/linux/kernel/git/jberg/mac80211-next.git master in testcase: hwsim with following parameters: group: hwsim-09 on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 4G caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): +----------------------------------------------------------+------------+------------+ | | be9cefe796 | 5cf94a0ee7 | +----------------------------------------------------------+------------+------------+ | boot_successes | 23 | 11 | | boot_failures | 0 | 4 | | WARNING:at_net/wireless/core.c:#wiphy_register[cfg80211] | 0 | 4 | | RIP:wiphy_register[cfg80211] | 0 | 4 | +----------------------------------------------------------+------------+------------+ [ 307.982608] WARNING: CPU: 1 PID: 5801 at net/wireless/core.c:561 wiphy_register+0x45a/0x900 [cfg80211] [ 307.985386] Modules linked in: cmac ccm arc4 mac80211_hwsim mac80211 cfg80211 rfkill crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel sr_mod cdrom sg bochs_drm ata_generic ttm ppdev aesni_intel snd_pcm pata_acpi drm_kms_helper snd_timer crypto_simd cryptd syscopyarea sysfillrect glue_helper snd sysimgblt fb_sys_fops ata_piix joydev serio_raw soundcore pcspkr libata drm parport_pc i2c_piix4 floppy parport ip_tables [ 307.995459] CPU: 1 PID: 5801 Comm: python2 Not tainted 5.0.0-rc7-02366-g5cf94a0 #1 [ 307.997737] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 308.000189] RIP: 0010:wiphy_register+0x45a/0x900 [cfg80211] [ 308.002175] Code: 66 44 85 e0 74 8b 0f 0b b8 ea ff ff ff e9 e8 fc ff ff 0f 0b 0f 0b b8 ea ff ff ff e9 da fc ff ff 80 7a 10 00 0f 85 05 ff ff ff <0f> 0b b8 ea ff ff ff e9 c4 fc ff ff 0f 0b b8 ea ff ff ff e9 b8 fc [ 308.007466] RSP: 0018:ffffa0ba0094b9e0 EFLAGS: 00010246 [ 308.009486] RAX: 0000000000000000 RBX: ffff95a5f1da4300 RCX: 0000000000000002 [ 308.012007] RDX: ffff95a5f1da6188 RSI: 0000000000000000 RDI: ffff95a5f1da4300 [ 308.014304] RBP: ffffa0ba0094ba70 R08: 0000000000000000 R09: ffff95a687c03080 [ 308.016594] R10: ffffa0ba0094ba90 R11: ffff95a5f1da61a0 R12: 0000000000000001 [ 308.018909] R13: 0000000000000001 R14: 0000000000000027 R15: 0000000000000001 [ 308.021204] FS: 00007f29e6e82700(0000) GS:ffff95a6bfd00000(0000) knlGS:0000000000000000 [ 308.023666] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 308.025736] CR2: 00007f38dc710708 CR3: 0000000078766000 CR4: 00000000000406e0 [ 308.028042] Call Trace: [ 308.029620] ? ieee80211_register_hw+0x269/0xc60 [mac80211] [ 308.031667] ? preempt_schedule_common+0x15/0x30 [ 308.033560] ? ieee80211_register_hw+0x42a/0xc60 [mac80211] [ 308.035631] ieee80211_register_hw+0x42a/0xc60 [mac80211] [ 308.037654] mac80211_hwsim_new_radio+0x8d6/0xdc0 [mac80211_hwsim] [ 308.039808] ? cred_has_capability+0x7d/0x130 [ 308.041649] hwsim_new_radio_nl+0x37d/0x3b0 [mac80211_hwsim] [ 308.043699] genl_family_rcv_msg+0x1fa/0x3c0 [ 308.046108] genl_rcv_msg+0x47/0x90 [ 308.047818] ? __kmalloc_node_track_caller+0x5c/0x2b0 [ 308.049763] ? genl_family_rcv_msg+0x3c0/0x3c0 [ 308.051604] netlink_rcv_skb+0x4a/0x110 [ 308.053332] genl_rcv+0x24/0x40 [ 308.054955] netlink_unicast+0x193/0x230 [ 308.056710] netlink_sendmsg+0x2c1/0x3c0 [ 308.058459] sock_sendmsg+0x36/0x40 [ 308.060127] __sys_sendto+0x10e/0x140 [ 308.061830] ? handle_mm_fault+0xf5/0x230 [ 308.063589] ? __do_page_fault+0x314/0x520 [ 308.065363] __x64_sys_sendto+0x24/0x30 [ 308.067110] do_syscall_64+0x5b/0x1a0 [ 308.068831] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 308.070775] RIP: 0033:0x7f29e6a5f5bd [ 308.072469] Code: 79 20 00 f7 d8 64 89 01 48 83 c8 ff c3 8b 05 1a be 20 00 85 c0 75 3e 48 63 ff 45 31 c9 45 31 c0 4c 63 d1 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0b c3 66 2e 0f 1f 84 00 00 00 00 00 48 8b 15 [ 308.077788] RSP: 002b:00007ffca1265f88 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 308.080160] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f29e6a5f5bd [ 308.082457] RDX: 000000000000001c RSI: 00007f29df971d8c RDI: 0000000000000014 [ 308.084723] RBP: 00007f29df95bfb8 R08: 0000000000000000 R09: 0000000000000000 [ 308.086965] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffca1265fc0 [ 308.089184] R13: 00007f29e6e82698 R14: 000000000000001c R15: 000055ecd4bb40a0 [ 308.091367] ---[ end trace e3672b76808636d2 ]--- To reproduce: # build kernel cd linux cp config-5.0.0-rc7-02366-g5cf94a0 .config make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 prepare make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 modules_prepare make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 SHELL=/bin/bash make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 bzImage git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email Thanks, lkp

1 year, 7 months

1
0
0 / 0

f5a7344f61 ("drm: Add helpers to kick off self refresh mode in .."): BUG: KASAN: null-ptr-deref in drm_self_refresh_helper_alter_state

by kernel test robot

Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://github.com/0day-ci/linux/commits/Sean-Paul/drm-Add-helpers-to-kic... commit f5a7344f61b9f1ff99802d4daa7fecbdf0040b42 Author: Sean Paul <seanpaul(a)chromium.org> AuthorDate: Tue Mar 26 16:44:54 2019 -0400 Commit: 0day robot <lkp(a)intel.com> CommitDate: Wed Mar 27 19:48:55 2019 +0800 drm: Add helpers to kick off self refresh mode in drivers This patch adds a new drm helper library to help drivers implement self refresh. Drivers choosing to use it will register crtcs and will receive callbacks when it's time to enter or exit self refresh mode. In its current form, it has a timer which will trigger after a driver-specified amount of inactivity. When the timer triggers, the helpers will submit a new atomic commit to shut the refreshing pipe off. On the next atomic commit, the drm core will revert the self refresh state and bring everything back up to be actively driven. From the driver's perspective, this works like a regular disable/enable cycle. The driver need only check the 'self_refresh_active' and/or 'self_refresh_changed' state in crtc_state and connector_state. It should initiate self refresh mode on the panel and enter an off or low-power state. Changes in v2: - s/psr/self_refresh/ (Daniel) - integrated the psr exit into the commit that wakes it up (Jose/Daniel) - made the psr state per-crtc (Jose/Daniel) Link to v1: https://patchwork.freedesktop.org/patch/msgid/20190228210939.83386-2-sean... Cc: Daniel Vetter <daniel(a)ffwll.ch> Cc: Jose Souza <jose.souza(a)intel.com> Cc: Zain Wang <wzz(a)rock-chips.com> Cc: Tomasz Figa <tfiga(a)chromium.org> Signed-off-by: Sean Paul <seanpaul(a)chromium.org> 14c741de93 Merge tag 'nfs-for-5.1-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs f5a7344f61 drm: Add helpers to kick off self refresh mode in drivers 5886c73b16 drm/rockchip: Use drm_atomic_helper_commit_tail_rpm +------------------------------------------+------------+------------+------------+ | | 14c741de93 | f5a7344f61 | 5886c73b16 | +------------------------------------------+------------+------------+------------+ | boot_successes | 28 | 0 | 0 | | boot_failures | 0 | 11 | 13 | | BUG:KASAN:null-ptr-deref_in_d | 0 | 11 | 13 | | BUG:unable_to_handle_kernel | 0 | 11 | 13 | | Oops:#[##] | 0 | 11 | 13 | | RIP:drm_self_refresh_helper_alter_state | 0 | 11 | 13 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 11 | 13 | +------------------------------------------+------------+------------+------------+ [ 9.780515] [TTM] Initializing pool allocator [ 9.781498] [TTM] Initializing DMA pool allocator [ 9.788382] [drm] Initialized bochs-drm 1.0.0 20130925 for 0000:00:02.0 on minor 2 [ 9.797720] fbcon: DRM emulated (fb0) is primary device [ 9.800488] ================================================================== [ 9.800635] BUG: KASAN: null-ptr-deref in drm_self_refresh_helper_alter_state+0x1ec/0x237 [ 9.800653] Read of size 4 at addr 0000000000000068 by task swapper/0/1 [ 9.800653] [ 9.800653] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G T 5.1.0-rc2-00025-gf5a7344 #1 [ 9.800653] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 9.800653] Call Trace: [ 9.800653] dump_stack+0x62/0x8b [ 9.800653] ? drm_self_refresh_helper_alter_state+0x1ec/0x237 [ 9.800653] kasan_report+0x1bc/0x1d4 [ 9.800653] ? drm_self_refresh_helper_alter_state+0x1ec/0x237 [ 9.800653] __asan_load4+0xa0/0xa2 [ 9.800653] drm_self_refresh_helper_alter_state+0x1ec/0x237 [ 9.800653] ? drm_atomic_helper_check_planes+0x2dc/0x3a3 [ 9.800653] drm_atomic_helper_check+0xac/0xb8 [ 9.800653] drm_atomic_check_only+0xd5a/0xeb1 [ 9.800653] ? drm_atomic_add_affected_planes+0x188/0x188 [ 9.800653] drm_atomic_commit+0x29/0x7e [ 9.800653] restore_fbdev_mode_atomic+0x2ef/0x36f [ 9.800653] ? drm_fb_helper_debug_leave+0x264/0x264 [ 9.800653] ? mutex_lock+0xf5/0x128 [ 9.800653] restore_fbdev_mode+0xbd/0x207 [ 9.800653] drm_fb_helper_restore_fbdev_mode_unlocked+0x51/0x9c [ 9.800653] drm_fb_helper_set_par+0x6e/0x7e [ 9.800653] fbcon_init+0x6ed/0x88e [ 9.800653] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x9c/0x9c [ 9.800653] visual_init+0x14d/0x1fd [ 9.800653] do_bind_con_driver+0x28f/0x3c4 [ 9.800653] do_take_over_console+0x253/0x264 [ 9.800653] do_fbcon_takeover+0x90/0xeb [ 9.800653] ? fbcon_event_notify+0x5cd/0xc9f [ 9.800653] fbcon_event_notify+0x5fe/0xc9f [ 9.800653] notifier_call_chain+0x61/0x93 [ 9.800653] __blocking_notifier_call_chain+0x58/0x72 [ 9.800653] blocking_notifier_call_chain+0x14/0x16 [ 9.800653] fb_notifier_call_chain+0x1b/0x1d [ 9.800653] register_framebuffer+0x4cb/0x54d [ 9.800653] ? remove_conflicting_pci_framebuffers+0x112/0x112 [ 9.800653] ? __ww_mutex_lock_interruptible_slowpath+0x18/0x18 [ 9.800653] ? drm_fb_helper_fill_pixel_fmt+0x262/0x26c [ 9.800653] __drm_fb_helper_initial_config_and_unlock+0x68a/0x7d0 [ 9.800653] ? drm_setup_crtcs+0xf17/0xf17 [ 9.800653] ? __ww_mutex_lock_interruptible_slowpath+0x18/0x18 [ 9.800653] ? drm_fb_helper_init+0x32/0x362 [ 9.800653] drm_fb_helper_initial_config+0x31/0x38 [ 9.800653] drm_fbdev_client_hotplug+0x17d/0x1e5 [ 9.800653] drm_fbdev_generic_setup+0x15e/0x196 [ 9.800653] ? bochs_pci_remove+0x3b/0x3b [ 9.800653] bochs_pci_probe+0x1b6/0x1d8 [ 9.800653] local_pci_probe+0x76/0xc3 [ 9.800653] pci_device_probe+0x260/0x2cb [ 9.800653] ? pci_device_remove+0x226/0x226 [ 9.800653] ? driver_sysfs_add+0xe6/0x14d [ 9.800653] really_probe+0x332/0x69c [ 9.800653] ? device_driver_attach+0x93/0x93 [ 9.800653] driver_probe_device+0x1a1/0x1e0 [ 9.800653] ? device_driver_attach+0x5d/0x93 [ 9.800653] device_driver_attach+0x72/0x93 [ 9.800653] ? parse_option_str+0x17/0x75 [ 9.800653] __driver_attach+0x1cd/0x1dc [ 9.800653] bus_for_each_dev+0xe0/0x11f [ 9.800653] ? bus_remove_file+0x4a/0x4a [ 9.800653] ? ftrace_likely_update+0x28/0x3e [ 9.800653] ? _raw_spin_unlock+0x53/0x61 [ 9.800653] driver_attach+0x2b/0x2e [ 9.800653] bus_add_driver+0x20d/0x2f2 [ 9.800653] driver_register+0x12d/0x17c [ 9.800653] __pci_register_driver+0xd6/0xe1 [ 9.800653] ? ast_init+0x45/0x45 [ 9.800653] bochs_init+0x43/0x45 [ 9.800653] do_one_initcall+0x177/0x373 [ 9.800653] ? start_kernel+0x62f/0x62f [ 9.800653] ? kasan_poison_shadow+0x2f/0x31 [ 9.800653] ? set_debug_rodata+0x17/0x17 [ 9.800653] kernel_init_freeable+0x3ac/0x441 [ 9.800653] ? rest_init+0xda/0xda [ 9.800653] kernel_init+0x11/0x10f [ 9.800653] ? rest_init+0xda/0xda [ 9.800653] ret_from_fork+0x35/0x40 [ 9.800653] ================================================================== [ 9.800653] Disabling lock debugging due to kernel taint [ 9.801974] BUG: unable to handle kernel NULL pointer dereference at 0000000000000068 [ 9.801980] #PF error: [normal kernel read fault] [ 9.802001] PGD 0 P4D 0 [ 9.802029] Oops: 0000 [#1] PREEMPT SMP KASAN [ 9.802038] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G B T 5.1.0-rc2-00025-gf5a7344 #1 [ 9.802042] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 9.802058] RIP: 0010:drm_self_refresh_helper_alter_state+0x1ec/0x237 [ 9.802067] Code: 61 ff 41 80 bc 24 e1 01 00 00 00 75 ad 49 8d be 90 04 00 00 e8 9b fb 61 ff 4d 8b a6 90 04 00 00 49 8d 7c 24 68 e8 43 fa 61 ff <41> 8b 7c 24 68 e8 13 ab 4b ff 48 89 45 c8 48 c7 c7 38 b1 7a 85 e8 [ 9.802072] RSP: 0000:ffff88801985f278 EFLAGS: 00010286 [ 9.802099] RAX: ffff888019850080 RBX: ffff8880148852c8 RCX: ffffffff81273647 [ 9.802104] RDX: 0000000000000000 RSI: 2000040000000000 RDI: ffffffff855ab2b8 [ 9.802110] RBP: ffff88801985f2c0 R08: fffffbfff0aa5616 R09: 0000000000000007 [ 9.802114] R10: fffffbfff0aa5615 R11: 0000000000000000 R12: 0000000000000000 [ 9.802119] R13: 0000000000000000 R14: ffff8880191ec318 R15: ffff8880148852e8 [ 9.802126] FS: 0000000000000000(0000) GS:ffff88801a400000(0000) knlGS:0000000000000000 [ 9.802130] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.802135] CR2: 0000000000000068 CR3: 000000000462b001 CR4: 00000000001606f0 [ 9.802141] Call Trace: [ 9.802150] ? drm_atomic_helper_check_planes+0x2dc/0x3a3 [ 9.802159] drm_atomic_helper_check+0xac/0xb8 [ 9.802169] drm_atomic_check_only+0xd5a/0xeb1 [ 9.802179] ? drm_atomic_add_affected_planes+0x188/0x188 [ 9.802189] drm_atomic_commit+0x29/0x7e [ 9.802198] restore_fbdev_mode_atomic+0x2ef/0x36f [ 9.802214] ? drm_fb_helper_debug_leave+0x264/0x264 [ 9.802223] ? mutex_lock+0xf5/0x128 [ 9.802232] restore_fbdev_mode+0xbd/0x207 [ 9.802241] drm_fb_helper_restore_fbdev_mode_unlocked+0x51/0x9c [ 9.802249] drm_fb_helper_set_par+0x6e/0x7e [ 9.802257] fbcon_init+0x6ed/0x88e [ 9.802265] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x9c/0x9c [ 9.802273] visual_init+0x14d/0x1fd [ 9.802281] do_bind_con_driver+0x28f/0x3c4 [ 9.802290] do_take_over_console+0x253/0x264 [ 9.802299] do_fbcon_takeover+0x90/0xeb [ 9.802308] ? fbcon_event_notify+0x5cd/0xc9f [ 9.802316] fbcon_event_notify+0x5fe/0xc9f [ 9.802325] notifier_call_chain+0x61/0x93 [ 9.802333] __blocking_notifier_call_chain+0x58/0x72 [ 9.802342] blocking_notifier_call_chain+0x14/0x16 [ 9.802349] fb_notifier_call_chain+0x1b/0x1d [ 9.802356] register_framebuffer+0x4cb/0x54d [ 9.802365] ? remove_conflicting_pci_framebuffers+0x112/0x112 [ 9.802384] ? __ww_mutex_lock_interruptible_slowpath+0x18/0x18 [ 9.802394] ? drm_fb_helper_fill_pixel_fmt+0x262/0x26c [ 9.802417] __drm_fb_helper_initial_config_and_unlock+0x68a/0x7d0 [ 9.802425] ? drm_setup_crtcs+0xf17/0xf17 [ 9.802433] ? __ww_mutex_lock_interruptible_slowpath+0x18/0x18 [ 9.802442] ? drm_fb_helper_init+0x32/0x362 [ 9.802449] drm_fb_helper_initial_config+0x31/0x38 [ 9.802456] drm_fbdev_client_hotplug+0x17d/0x1e5 [ 9.802464] drm_fbdev_generic_setup+0x15e/0x196 [ 9.802471] ? bochs_pci_remove+0x3b/0x3b [ 9.802478] bochs_pci_probe+0x1b6/0x1d8 [ 9.802486] local_pci_probe+0x76/0xc3 [ 9.802493] pci_device_probe+0x260/0x2cb [ 9.802501] ? pci_device_remove+0x226/0x226 [ 9.802509] ? driver_sysfs_add+0xe6/0x14d [ 9.802517] really_probe+0x332/0x69c [ 9.802525] ? device_driver_attach+0x93/0x93 [ 9.802533] driver_probe_device+0x1a1/0x1e0 [ 9.802540] ? device_driver_attach+0x5d/0x93 [ 9.802548] device_driver_attach+0x72/0x93 [ 9.802556] ? parse_option_str+0x17/0x75 [ 9.802563] __driver_attach+0x1cd/0x1dc [ 9.802571] bus_for_each_dev+0xe0/0x11f [ 9.802578] ? bus_remove_file+0x4a/0x4a [ 9.802587] ? ftrace_likely_update+0x28/0x3e [ 9.802594] ? _raw_spin_unlock+0x53/0x61 [ 9.802602] driver_attach+0x2b/0x2e [ 9.802609] bus_add_driver+0x20d/0x2f2 [ 9.802618] driver_register+0x12d/0x17c [ 9.802626] __pci_register_driver+0xd6/0xe1 [ 9.802633] ? ast_init+0x45/0x45 [ 9.802640] bochs_init+0x43/0x45 [ 9.802647] do_one_initcall+0x177/0x373 [ 9.802654] ? start_kernel+0x62f/0x62f [ 9.802662] ? kasan_poison_shadow+0x2f/0x31 [ 9.802670] ? set_debug_rodata+0x17/0x17 [ 9.802677] kernel_init_freeable+0x3ac/0x441 [ 9.802685] ? rest_init+0xda/0xda [ 9.802692] kernel_init+0x11/0x10f [ 9.802699] ? rest_init+0xda/0xda [ 9.802706] ret_from_fork+0x35/0x40 [ 9.802722] CR2: 0000000000000068 [ 9.802735] ---[ end trace 1c0a59d8d6a544f3 ]--- [ 9.802745] RIP: 0010:drm_self_refresh_helper_alter_state+0x1ec/0x237 # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 295e041d18873d661bea4459df2a6c81b6926927 8c2ffd9174779014c3fe1f96d9dc3641d9175f00 -- git bisect bad 03025a210a0499d328cdb9f082e4c45e6b798be8 # 02:25 B 0 4 18 0 Merge 'linux-review/Jan-Harkes/Coda-updates-for-linux-5-1/20190321-121454' into devel-hourly-2019032722 git bisect bad 424324c9d2a55b2bd66f0ce8e0756834d8de0a1d # 02:44 B 0 10 24 0 Merge 'linux-review/Dan-Carpenter/media-v4l2-ctrl-potential-shift-wrapping-bugs/20190325-203001' into devel-hourly-2019032722 git bisect bad cb6fcf0aaa11eb1399c5eee8a35e9982dcd76931 # 03:07 B 0 11 25 0 Merge 'linux-review/Liviu-Dudau/MAINTAINERS-Fix-pattern-for-Documentation-path-for-Arm-Mali-Komeda/20190327-051830' into devel-hourly-2019032722 git bisect bad 1fa6f320433474ff674140efcbb8f02f71429452 # 03:43 B 0 11 25 0 Merge 'linux-review/Liviu-Dudau/arm-komeda-Compile-komeda_debugfs_init-only-if-CONFIG_DEBUG_FS-is-enabled/20190326-205140' into devel-hourly-2019032722 git bisect good 8136c126428003262721806e62332d1c84084823 # 04:07 G 10 0 1 1 Merge 'linux-review/Arnd-Bergmann/wireless-carl9170-fix-clang-build-warning/20190326-032812' into devel-hourly-2019032722 git bisect bad c3f1830078f8705319690f2ab2ca8a377c6c1328 # 04:25 B 0 1 15 0 Merge 'nsekhar-davinci/fixes' into devel-hourly-2019032722 git bisect good 16d0e17a5313a4d81d70f30847ffc16275a89d04 # 04:52 G 11 0 2 2 Merge 'mzx/for-next' into devel-hourly-2019032722 git bisect good 25d9b508677d66f36351fce6ad31eaf6972369d3 # 05:09 G 11 0 5 5 Merge 'linux-review/UPDATE-20190325-104210/Janusz-Krzysztofik/mtd-rawnand-ams-delta-Drop-board-specific-partition-info/20190320-223544' into devel-hourly-2019032722 git bisect good 9d4cd0076bc0d36b593abaeefc0ab924ad9a8d27 # 05:33 G 11 0 2 2 Merge 'asoc/for-linus' into devel-hourly-2019032722 git bisect bad 9845aab9316a6dc047898ef135fb114ea2487cab # 05:46 B 0 11 25 0 Merge 'linux-review/Sean-Paul/drm-Add-helpers-to-kick-off-self-refresh-mode-in-drivers/20190327-194853' into devel-hourly-2019032722 git bisect good 65ae689329c5d6a149b9201df9321368fbdb6a5c # 06:00 G 10 0 2 2 Merge tag 'for-5.1-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux git bisect good 01f2f5b82a2b523ae76af53f2ff43c48dde10a00 # 06:14 G 10 0 2 2 SUNRPC: fix uninitialized variable warning git bisect bad 4e91560bc502453eee65ec7a0366ab047eb6f8d1 # 06:30 B 0 6 20 0 drm/rockchip: Check for fast link training before enabling psr git bisect bad f5a7344f61b9f1ff99802d4daa7fecbdf0040b42 # 06:52 B 0 10 24 0 drm: Add helpers to kick off self refresh mode in drivers git bisect good 14c741de93861749dfb60b4964028541f5c506ca # 07:02 G 10 0 3 3 Merge tag 'nfs-for-5.1-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs # first bad commit: [f5a7344f61b9f1ff99802d4daa7fecbdf0040b42] drm: Add helpers to kick off self refresh mode in drivers git bisect good 14c741de93861749dfb60b4964028541f5c506ca # 07:04 G 33 0 5 8 Merge tag 'nfs-for-5.1-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs # extra tests with debug options git bisect bad f5a7344f61b9f1ff99802d4daa7fecbdf0040b42 # 07:21 B 0 8 22 0 drm: Add helpers to kick off self refresh mode in drivers # extra tests on HEAD of linux-devel/devel-hourly-2019032722 git bisect bad 295e041d18873d661bea4459df2a6c81b6926927 # 07:21 B 0 13 30 0 0day head guard for 'devel-hourly-2019032722' # extra tests on tree/branch linux-review/Sean-Paul/drm-Add-helpers-to-kick-off-self-refresh-mode-in-drivers/20190327-194853 git bisect bad 5886c73b16de676d8655f6d4a286bc74df20c1e2 # 07:51 B 0 10 24 0 drm/rockchip: Use drm_atomic_helper_commit_tail_rpm # extra tests with first bad commit reverted git bisect good 2edfca58b2d075534dda49714ce96c5cebf00ff5 # 08:07 G 11 0 0 0 Revert "drm: Add helpers to kick off self refresh mode in drivers" --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation

1 year, 7 months

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[crc] b76377543b: leaking_addresses.proc.modules.crct10dif_pclmul163841-Live

by kernel test robot

FYI, we noticed the following commit (built with gcc-7): commit: b76377543b738a6b58b0a7b0a42dd9e16436fee1 ("crc-t10dif: Pick better transform if one becomes available") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master in testcase: leaking_addresses with following parameters: on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 2G caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): 2019-03-26 21:30:42 ./leaking_addresses.pl --output-raw result/scan.out 2019-03-26 21:31:14 ./leaking_addresses.pl --input-raw result/scan.out --squash-by-filename Total number of results from scan (incl dmesg): 109117 dmesg output: [ 0.031612] mapped APIC to ffffffffff5fc000 ( fee00000) [ 0.067531] mapped IOAPIC to ffffffffff5fb000 (fec00000) Results squashed by filename (excl dmesg). Displaying [<number of results> <filename>], <example result> [37 .symtab] 0xffffffffc031f000 [1 .rodata.cst16.bswap_mask] 0xffffffffc0561060 [108127 kallsyms] ffffffffb8800000 T startup_64 [1 key] 402000000 3803078f800d001 feffffdfffefffff fffffffffffffffe [2 __tracepoints_ptrs] 0xffffffffc037fdb0 [37 .note.Linux] 0xffffffffc0319380 [7 .text..refcount] 0xffffffffc053ca1a [11 __ksymtab_gpl] 0xffffffffc046e028 [2 __tracepoints] 0xffffffffc03927c0 [8 .altinstr_replacement] 0xffffffffc050be52 [1 .rodata.cst16.mask1] 0xffffffffc04b0100 [1 .rodata.cst16.MASK2] 0xffffffffc050c360 [11 __verbose] 0xffffffffc05b6c68 [1 .rodata.cst16.POLY] 0xffffffffc050c2f0 [1 .rodata.cst16.ONEf] 0xffffffffc050c6e0 [1 .rodata.cst16.ONE] 0xffffffffc050c370 [31 .data] 0xffffffffc031a0c0 [150 blacklist] 0xffffffffb8806170-0xffffffffb88061c0 perf_event_nmi_handler [1 .rodata.cst16.POLY2] 0xffffffffc050c6d0 [2 .altinstr_aux] 0xffffffffc05c9988 [31 .init.text] 0xffffffffc031d000 [1 .init.rodata] 0xffffffffc03a3000 [20 __bug_table] 0xffffffffc03bb17c [1 .rodata.cst16.enc] 0xffffffffc050c3b0 [1 framebuffer] modifier=0xffff921890038680 [1 .rodata.cst16.mask2] 0xffffffffc04b0110 [2 .ref.data] 0xffffffffc0392640 [52 printk_formats] 0xffffffffb98c1130 : "CPU_ON" [8 .altinstructions] 0xffffffffc050c3c0 [26 .rodata.str1.8] 0xffffffffc03171f0 [37 .gnu.linkonce.this_module] 0xffffffffc031a380 [1 devices] B: KEY=402000000 3803078f800d001 feffffdfffefffff fffffffffffffffe [19 __ksymtab_strings] 0xffffffffc0318ac8 [15 __ksymtab] 0xffffffffc0317028 [4 .data..read_mostly] 0xffffffffc054b5a8 [2 .fixup] 0xffffffffc058047b [14 __jump_table] 0xffffffffc031a000 [1 .rodata.cst16.gf128mul_x_ble_mask] 0xffffffffc050c2e0 [32 .rodata] 0xffffffffc03179a0 [37 .text] 0xffffffffc0314000 [1 .rodata.cst16.MASK1] 0xffffffffc050c350 [2 __bpf_raw_tp_map] 0xffffffffc0392540 [1 uevent] KEY=402000000 3803078f800d001 feffffdfffefffff fffffffffffffffe [8 __ex_table] 0xffffffffc054aac4 [1 .rodata.cst16.F_MIN_MASK] 0xffffffffc050c390 [2 .rodata.cst16.SHUF_MASK] 0xffffffffc050c330 [37 __mcount_loc] 0xffffffffc0317038 [21 .bss] 0xffffffffc031a6c0 [10 .text.unlikely] 0xffffffffc0316393 [17 __param] 0xffffffffc0318a00 [16 .parainstructions] 0xffffffffc0317978 [29 .rodata.str1.1] 0xffffffffc0317100 [37 modules] crct10dif_pclmul 16384 1 - Live 0xffffffffc04af000 [37 .note.gnu.build-id] 0xffffffffc0317000 [14 .smp_locks] 0xffffffffc046e2cc [37 .strtab] 0xffffffffc0320788 [30 .exit.text] 0xffffffffc0316554 [31 .orc_unwind_ip] 0xffffffffc0318af9 [5 .data.once] 0xffffffffc054b5b0 [1 .rodata.cst16.TWOONE] 0xffffffffc050c310 [31 .orc_unwind] 0xffffffffc0318e61 [1 .rodata.cst16.dec] 0xffffffffc050c3a0 [2 _ftrace_events] 0xffffffffc0392600 [3 .init.data] 0xffffffffc031e000 [2 __tracepoints_strings] 0xffffffffc0386910 [1 .rodata.cst32.pshufb_shf_table] 0xffffffffc04b0140 To reproduce: # build kernel cd linux cp config-4.19.0-rc2-00022-gb763775 .config make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 prepare make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 modules_prepare make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 SHELL=/bin/bash make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 bzImage git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email Thanks, Rong Chen

1 year, 7 months

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80f8d3dbca ("tcp: fix zerocopy and notsent_lowat issues"): WARNING: CPU: 0 PID: 709 at net/core/stream.c:205 sk_stream_kill_queues

by kernel test robot

Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://github.com/0day-ci/linux/commits/Eric-Dumazet/tcp-fix-zerocopy-an... commit 80f8d3dbcab4d3e5020927d909a41a2410163301 Author: Eric Dumazet <edumazet(a)google.com> AuthorDate: Mon Mar 25 13:44:34 2019 -0700 Commit: 0day robot <lkp(a)intel.com> CommitDate: Tue Mar 26 21:58:19 2019 +0800 tcp: fix zerocopy and notsent_lowat issues My recent patch had at least two problems : 1) TX zerocopy wants notification when skb is acknowledged, thus we need to call skb_zcopy_clear() if the skb is cached into sk->sk_tx_skb_cache 2) Some applications might expect precise EPOLLOUT notifications, so we need to update sk->sk_wmem_queued and call sk_mem_uncharge() from sk_wmem_free_skb() in all cases. The SOCK_QUEUE_SHRUNK flag must also be set. Fixes: 472c2e07eef0 ("tcp: add one skb cache for tx") Signed-off-by: Eric Dumazet <edumazet(a)google.com> Cc: Willem de Bruijn <willemb(a)google.com> Cc: Soheil Hassas Yeganeh <soheil(a)google.com> 68cc2999f6 Merge branch 'devlink-small-spring-cleanup' 80f8d3dbca tcp: fix zerocopy and notsent_lowat issues +-----------------------------------------------------+------------+------------+ | | 68cc2999f6 | 80f8d3dbca | +-----------------------------------------------------+------------+------------+ | boot_successes | 56 | 10 | | boot_failures | 1 | 8 | | Mem-Info | 1 | | | WARNING:at_net/core/stream.c:#sk_stream_kill_queues | 0 | 8 | | EIP:sk_stream_kill_queues | 0 | 8 | | WARNING:at_net/ipv4/af_inet.c:#inet_sock_destruct | 0 | 8 | | EIP:inet_sock_destruct | 0 | 8 | +-----------------------------------------------------+------------+------------+ [ 26.057238] warning: process `trinity-c0' used the obsolete bdflush system call [ 26.058938] Fix your initscripts? [ 27.025711] warning: process `trinity-c0' used the obsolete bdflush system call [ 27.027574] Fix your initscripts? [ 64.912122] Writes: Total: 32081831 Max/Min: 0/0 Fail: 0 [ 72.958673] WARNING: CPU: 0 PID: 709 at net/core/stream.c:205 sk_stream_kill_queues+0x250/0x260 [ 72.960466] CPU: 0 PID: 709 Comm: trinity-c3 Not tainted 5.0.0-11759-g80f8d3d #1 [ 72.961826] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 72.963309] EIP: sk_stream_kill_queues+0x250/0x260 [ 72.964165] Code: 00 00 00 31 c9 e8 80 70 e9 fe 58 5a 5b 5e 5f 5d c3 90 89 d8 e8 b1 9f fe ff e9 56 ff ff ff 8d 74 26 00 0f 0b e9 ea fe ff ff 90 <0f> 0b e9 7a ff ff ff 90 0f 0b eb bf 90 90 90 90 55 89 e5 56 53 e8 [ 72.967129] EAX: 00000001 EBX: d7bf8040 ECX: 00000000 EDX: 00000001 [ 72.968171] ESI: 00000001 EDI: fffffd50 EBP: d6b93e3c ESP: d6b93e28 [ 72.969213] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 EFLAGS: 00010286 [ 72.970322] CR0: 80050033 CR2: 00003636 CR3: 17a42000 CR4: 001406b0 [ 72.971365] DR0: b6d1c000 DR1: b6d40000 DR2: 00000000 DR3: 00000000 [ 72.972410] DR6: ffff0ff0 DR7: 00000600 [ 72.973139] Call Trace: [ 72.973698] inet_csk_destroy_sock+0x157/0x2a0 [ 72.974510] tcp_close+0x58b/0x640 [ 72.975186] inet_release+0x82/0x90 [ 72.975876] inet6_release+0x40/0x50 [ 72.976577] __sock_release+0xe7/0x120 [ 72.977296] sock_close+0x12/0x20 [ 72.977966] __fput+0x19d/0x3d0 [ 72.978612] ____fput+0xd/0x10 [ 72.979244] task_work_run+0x8c/0xc0 [ 72.979948] do_exit+0x30f/0x1210 [ 72.980616] ? trace_hardirqs_off+0x38/0xe0 [ 72.981393] do_group_exit+0x7e/0x100 [ 72.982102] sys_exit_group+0x18/0x20 [ 72.982815] do_int80_syscall_32+0xbf/0x260 [ 72.983593] entry_INT80_32+0xce/0xce [ 72.984301] EIP: 0x809af42 [ 72.984894] Code: Bad RIP value. [ 72.985550] EAX: ffffffda EBX: 00000000 ECX: 00000000 EDX: 00000000 [ 72.986590] ESI: 01108100 EDI: 4eaa2bf2 EBP: 6fbbe4f1 ESP: bfd700c8 [ 72.987658] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000296 [ 72.988771] ---[ end trace ec45b2e65e1b6578 ]--- [ 72.989635] WARNING: CPU: 0 PID: 709 at net/core/stream.c:206 sk_stream_kill_queues+0x258/0x260 # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 524d47add1c303a8d1dfa09eb59d6ffd08211ad2 9e98c678c2d6ae3a17cb2de55d17f69dddaa231b -- git bisect good 7bfe3be5eb3005ce7db157100e3eb0165f780055 # 23:49 G 13 0 3 3 Merge 'regulator/for-next' into devel-catchup-201903262246 git bisect good af2340e3edb9b7aa9a8190894740067a98d9c5c4 # 23:58 G 14 0 0 0 Merge 'spi/for-5.2' into devel-catchup-201903262246 git bisect bad 1345716b12772ec739b375317c47e25f471ad450 # 00:14 B 9 5 0 0 Merge 'linux-review/Eric-Dumazet/tcp-fix-zerocopy-and-notsent_lowat-issues/20190326-215818' into devel-catchup-201903262246 git bisect good 570c8a7d53032b1773ecfc6d317402450ada6de4 # 00:31 G 19 0 0 0 net: phy: aquantia: check for supported interface modes in config_init git bisect good c8b7abdd7d8e4696d5ffa25cebaa82931e0e39b3 # 00:47 G 19 0 0 0 ice: fix some function prototype and signature style issues git bisect good d64fee0a0320ecc678903c30c2fed56b68979011 # 01:03 G 19 0 2 2 Merge tag 'mlx5-updates-2019-03-20' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux git bisect good c3f10cbcaa3d5e1980733c3ccd0261df426412d2 # 01:16 G 19 0 1 1 bnxt: call devlink_port_type_eth_set() before port register git bisect good faaccbe6eb07ecd590bebae11eb236661ecfb069 # 01:28 G 19 0 1 1 nfp: move devlink port type set after netdev registration git bisect good b8f975545cdbcc316cf20e827e7966d4410b5c5a # 01:47 G 19 0 1 1 net: devlink: add port type spinlock git bisect good 68cc2999f6926590c7783f2de12ba467ecad8c7d # 01:58 G 19 0 1 1 Merge branch 'devlink-small-spring-cleanup' git bisect bad 80f8d3dbcab4d3e5020927d909a41a2410163301 # 02:09 B 2 2 0 0 tcp: fix zerocopy and notsent_lowat issues # first bad commit: [80f8d3dbcab4d3e5020927d909a41a2410163301] tcp: fix zerocopy and notsent_lowat issues git bisect good 68cc2999f6926590c7783f2de12ba467ecad8c7d # 02:17 G 60 0 4 5 Merge branch 'devlink-small-spring-cleanup' # extra tests with debug options git bisect bad 80f8d3dbcab4d3e5020927d909a41a2410163301 # 02:24 B 12 7 2 2 tcp: fix zerocopy and notsent_lowat issues # extra tests on HEAD of linux-devel/devel-catchup-201903262246 git bisect bad 524d47add1c303a8d1dfa09eb59d6ffd08211ad2 # 02:24 B 4 7 0 1 0day head guard for 'devel-catchup-201903262246' # extra tests on tree/branch linux-review/Eric-Dumazet/tcp-fix-zerocopy-and-notsent_lowat-issues/20190326-215818 git bisect bad 80f8d3dbcab4d3e5020927d909a41a2410163301 # 02:28 B 10 8 0 1 tcp: fix zerocopy and notsent_lowat issues # extra tests with first bad commit reverted git bisect good a66debe7c0f325673539a10aa3ef52db5460b1b3 # 02:37 G 20 0 1 1 Revert "tcp: fix zerocopy and notsent_lowat issues" --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation

1 year, 7 months

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Re: [LKP] [kernfs] e19dfdc83b: BUG:KASAN:global-out-of-bounds_in_s

by Ondrej Mosnacek

On Mon, Mar 25, 2019 at 4:17 PM Paul Moore <paul(a)paul-moore.com> wrote: > Ondrej, please look into this. > > You've looked at this code more recently than I have, but it looks > like there might be an issue with __kernfs_iattrs() returning a > pointer to a kernfs_iattrs object without taking a kernfs reference > (kernfs_get(kn)). Although I would be a little surprised if this was > the problem as I think it would cause a number of issues beyond just > this one ... ? I think this is actually because of how xattr_full_name() reconstructs the full name from the xattr suffix. It assumes that the suffix was obtained from the full name by just taking a pointer inside it, but in kernfs_security_xattr_get/set() I pass the suffix directly... I'm surprised that this didn't fail spectacularly earlier during testing. Maybe the newer GCC does some clever merging of the string constants, so that XATTR_SELINUX_SUFFIX actually ends up as a substring of XATTR_NAME_SELINUX? (That would be one hell of a "lucky" coincidence :) I'll post a patch that converts kernfs_security_xattr_get/set() to take the full name and hopefully that will fix the problem. I'll see if I can run the reproducer locally tomorrow... > > On Mon, Mar 25, 2019 at 10:50 AM kernel test robot > <rong.a.chen(a)intel.com> wrote: > > > > FYI, we noticed the following commit (built with gcc-7): > > > > commit: e19dfdc83b60f196e0653d683499f7bc5548128f ("kernfs: initialize security of newly created nodes") > > https://git.kernel.org/cgit/linux/kernel/git/pcmoore/selinux.git next > > > > in testcase: locktorture > > with following parameters: > > > > runtime: 300s > > test: default > > > > test-description: This torture test consists of creating a number of kernel threads which acquire the lock and hold it for specific amount of time, thus simulating different critical region behaviors. > > test-url: https://www.kernel.org/doc/Documentation/locking/locktorture.txt > > > > > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 2G > > > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > > > > +-------------------------------------------------+------------+------------+ > > | | ec882da5cd | e19dfdc83b | > > +-------------------------------------------------+------------+------------+ > > | boot_successes | 0 | 0 | > > | boot_failures | 8 | 8 | > > | BUG:kernel_reboot-without-warning_in_test_stage | 8 | | > > | BUG:KASAN:global-out-of-bounds_in_s | 0 | 8 | > > +-------------------------------------------------+------------+------------+ > > > > > > > > [ 27.938038] BUG: KASAN: global-out-of-bounds in strcmp+0x97/0xa0 > > [ 27.940755] Read of size 1 at addr ffffffff946a83d7 by task systemd/1 > > [ 27.943554] > > [ 27.944603] CPU: 0 PID: 1 Comm: systemd Not tainted 5.1.0-rc1-00010-ge19dfdc #1 > > [ 27.948091] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 > > [ 27.951946] Call Trace: > > [ 27.953353] ? strcmp+0x97/0xa0 > > [ 27.955026] print_address_description+0x22/0x270 > > [ 27.957203] ? strcmp+0x97/0xa0 > > [ 27.958841] kasan_report+0x13b/0x1d0 > > [ 27.960759] ? strcmp+0x97/0xa0 > > [ 27.962378] ? strcmp+0x97/0xa0 > > [ 27.963976] strcmp+0x97/0xa0 > > [ 27.965846] simple_xattr_get+0x7b/0x120 > > [ 27.967473] selinux_kernfs_init_security+0x108/0x440 > > [ 27.969360] ? __radix_tree_replace+0x9a/0x230 > > [ 27.971200] ? selinux_secctx_to_secid+0x20/0x20 > > [ 27.973011] ? __fprop_inc_percpu_max+0x190/0x190 > > [ 27.975563] ? kvm_sched_clock_read+0x12/0x20 > > [ 27.977907] ? sched_clock+0x5/0x10 > > [ 27.979867] ? sched_clock_cpu+0x24/0xb0 > > [ 27.982048] ? idr_alloc_cyclic+0xcb/0x190 > > [ 27.984229] ? lock_downgrade+0x620/0x620 > > [ 27.986388] security_kernfs_init_security+0x3c/0x70 > > [ 27.989012] __kernfs_new_node+0x403/0x5e0 > > [ 27.991195] ? kernfs_dop_revalidate+0x330/0x330 > > [ 27.993589] ? css_next_child+0xec/0x260 > > [ 27.995685] ? css_next_descendant_pre+0x36/0x110 > > [ 27.998115] ? cgroup_propagate_control+0x2d6/0x460 > > [ 28.000662] kernfs_new_node+0x72/0x140 > > [ 28.002818] ? lockdep_hardirqs_on+0x379/0x560 > > [ 28.005171] ? cgroup_idr_replace+0x35/0x40 > > [ 28.007417] kernfs_create_dir_ns+0x26/0x130 > > [ 28.009690] cgroup_mkdir+0x3b9/0xef0 > > [ 28.011764] ? cgroup_destroy_locked+0x5e0/0x5e0 > > [ 28.014196] kernfs_iop_mkdir+0x12f/0x1b0 > > [ 28.016396] vfs_mkdir+0x2e6/0x510 > > [ 28.018317] do_mkdirat+0x19b/0x1f0 > > [ 28.020284] ? __x64_sys_mknod+0xb0/0xb0 > > [ 28.022437] do_syscall_64+0xe5/0x10d0 > > [ 28.024408] ? syscall_return_slowpath+0x790/0x790 > > [ 28.026874] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe > > [ 28.029504] ? trace_hardirqs_off_caller+0x58/0x200 > > [ 28.031993] ? trace_hardirqs_off_thunk+0x1a/0x1c > > [ 28.034438] entry_SYSCALL_64_after_hwframe+0x49/0xbe > > [ 28.036748] RIP: 0033:0x7f38cab6f447 > > [ 28.038825] Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 49 da 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 21 da 2b 00 f7 d8 64 89 01 48 > > [ 28.047736] RSP: 002b:00007ffeef143d88 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 > > [ 28.051776] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f38cab6f447 > > [ 28.055117] RDX: 00007ffeef143c30 RSI: 00000000000001ed RDI: 000055a7b0458560 > > [ 28.058533] RBP: 0000000000000040 R08: 0000000000000000 R09: 2f73662f7379732f > > [ 28.062031] R10: 732f70756f726763 R11: 0000000000000246 R12: 000055a7b04b30a0 > > [ 28.065528] R13: 0000000000000000 R14: 000055a7b046bb88 R15: 000055a7b046b540 > > [ 28.068977] > > [ 28.070240] The buggy address belongs to the variable: > > [ 28.072491] securityfs_super_operations+0x4917/0x6220 > > [ 28.075171] > > [ 28.076286] Memory state around the buggy address: > > [ 28.078861] ffffffff946a8280: fa fa fa fa 00 01 fa fa fa fa fa fa 00 02 fa fa > > [ 28.082610] ffffffff946a8300: fa fa fa fa 00 02 fa fa fa fa fa fa 00 01 fa fa > > [ 28.086669] >ffffffff946a8380: fa fa fa fa 00 03 fa fa fa fa fa fa 00 fa fa fa > > [ 28.090587] ^ > > [ 28.093576] ffffffff946a8400: fa fa fa fa 00 00 00 00 00 00 05 fa fa fa fa fa > > [ 28.097599] ffffffff946a8480: 00 00 01 fa fa fa fa fa 00 00 00 00 00 00 00 00 > > [ 28.101453] ================================================================== > > [ 28.105478] Disabling lock debugging due to kernel taint > > Starting Load Kernel Modules... > > Mounting Debug File System... > > ] Listening on RPCbind Server Activation Socket. > > Starting Remount Root and Kernel File Systems... > > Starting Journal Service... > > Mounting RPC Pipe File System... > > [ 28.508319] _warn_unseeded_randomness: 131 callbacks suppressed > > [ 28.508335] random: get_random_u64 called from copy_process+0x596/0x6450 with crng_init=1 > > Starting Create Static Device Nodes in /dev... > > [ 28.552988] random: get_random_u64 called from arch_pick_mmap_layout+0x4a1/0x600 with crng_init=1 > > [ 28.556785] random: get_random_u64 called from arch_pick_mmap_layout+0x446/0x600 with crng_init=1 > > Starting Load/Save Random Seed... > > Starting udev Coldplug all Devices... > > Mounting FUSE Control File System... > > Starting Apply Kernel Variables... > > Mounting Configuration File System... > > Starting Raise network interfaces... > > Starting Preprocess NFS configuration... > > Starting udev Kernel Device Manager... > > Starting Flush Journal to Persistent Storage... > > Starting Create Volatile Files and Directories... > > [ 29.523554] random: get_random_u64 called from arch_pick_mmap_layout+0x446/0x600 with crng_init=1 > > [ 29.527262] random: get_random_u64 called from load_elf_binary+0x1281/0x2f30 with crng_init=1 > > > > Starting RPC bind portmap service... > > Starting Network Time Synchronization... > > Starting Update UTMP about System Boot/Shutdown... > > [ 30.574449] _warn_unseeded_randomness: 154 callbacks suppressed > > [ 30.574479] random: get_random_u32 called from bucket_table_alloc+0x149/0x370 with crng_init=1 > > [ 32.628754] random: get_random_u64 called from arch_pick_mmap_layout+0x4a1/0x600 with crng_init=1 > > [ 32.632973] random: get_random_u64 called from arch_pick_mmap_layout+0x446/0x600 with crng_init=1 > > [ 32.637364] random: get_random_u64 called from load_elf_binary+0x1281/0x2f30 with crng_init=1 > > Starting Login Service... > > Starting LSB: Start and stop bmc-watchdog... > > Starting LSB: Execute the kexec -e command to reboot system... > > > > > > To reproduce: > > > > # build kernel > > cd linux > > cp config-5.1.0-rc1-00010-ge19dfdc .config > > make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig > > make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 prepare > > make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 modules_prepare > > make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 SHELL=/bin/bash > > make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 bzImage > > > > > > git clone https://github.com/intel/lkp-tests.git > > cd lkp-tests > > find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz > > bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email > > > > > > > > > > Thanks, > > Rong Chen > > > > > -- > paul moore > www.paul-moore.com -- Ondrej Mosnacek <omosnace at redhat dot com> Software Engineer, Security Technologies Red Hat, Inc.

1 year, 7 months

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[cfg80211] 83db2c9ebd: hwsim.scan_multi_bssid_check_ie.fail

by kernel test robot

FYI, we noticed the following commit (built with gcc-7): commit: 83db2c9ebd071566d3b45e4860b9803dfc36d1ca ("[PATCH 06/11] cfg80211: don't skip multi-bssid index element") url: https://github.com/0day-ci/linux/commits/Luca-Coelho/mac80211-Increase-MA... base: https://git.kernel.org/cgit/linux/kernel/git/jberg/mac80211-next.git master in testcase: hwsim with following parameters: group: hwsim-12 on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 4G caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): 2019-03-25 02:31:59 ./run-tests.py scan_multi_bssid_check_ie DEV: wlan0: 02:00:00:00:00:00 DEV: wlan1: 02:00:00:00:01:00 DEV: wlan2: 02:00:00:00:02:00 APDEV: wlan3 APDEV: wlan4 START scan_multi_bssid_check_ie 1/1 Test: Scan and check if nontransmitting BSS inherits IE from transmitting BSS Starting AP wlan3 trans_bss beacon_ie: [0, 1, 3, 5, 71, 42, 45, 221, 50, 59, 61, 127] nontrans_bss1 beacon_ie: [0, 1, 3, 5, 42, 45, 221, 50, 85, 59, 61, 127] check IE failed Traceback (most recent call last): File "./run-tests.py", line 466, in main t(dev, apdev) File "/lkp/benchmarks/hwsim/tests/hwsim/test_scan.py", line 1703, in test_scan_multi_bssid_check_ie raise Exception("check IE failed") Exception: check IE failed FAIL scan_multi_bssid_check_ie 0.671182 2019-03-25 02:32:01.152626 passed 0 test case(s) skipped 0 test case(s) failed tests: scan_multi_bssid_check_ie To reproduce: # build kernel cd linux cp config-5.0.0-rc7-02371-g83db2c9 .config make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 prepare make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 modules_prepare make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 SHELL=/bin/bash make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 bzImage git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email Thanks, Rong Chen

1 year, 7 months

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LKP March 2019