December 2020 - LKP - Ml01.01.Org

[mm/filemap.c] 06c0444290: stress-ng.sendfile.ops_per_sec 26.7% improvement

by kernel test robot

Greeting, FYI, we noticed a 26.7% improvement of stress-ng.sendfile.ops_per_sec due to commit: commit: 06c0444290cecf04c89c62e6d448b8461507d247 ("mm/filemap.c: generic_file_buffered_read() now uses find_get_pages_contig") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master in testcase: stress-ng on test machine: 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 192G memory with following parameters: nr_threads: 100% disk: 1HDD testtime: 30s class: pipe cpufreq_governor: performance ucode: 0x5003003 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 ========================================================================================= class/compiler/cpufreq_governor/disk/kconfig/nr_threads/rootfs/tbox_group/testcase/testtime/ucode: pipe/gcc-9/performance/1HDD/x86_64-rhel-8.3/100%/debian-10.4-x86_64-20200603.cgz/lkp-csl-2sp5/stress-ng/30s/0x5003003 commit: 723ef24b9b ("mm/filemap/c: break generic_file_buffered_read up into multiple functions") 06c0444290 ("mm/filemap.c: generic_file_buffered_read() now uses find_get_pages_contig") 723ef24b9b379e59 06c0444290cecf04c89c62e6d44 ---------------- --------------------------- %stddev %change %stddev \ | \ 14865658 +26.7% 18839172 ± 2% stress-ng.sendfile.ops 495501 +26.7% 627957 ± 2% stress-ng.sendfile.ops_per_sec 17943 ± 12% +36.5% 24500 ± 5% proc-vmstat.numa_hint_faults 1585 ±170% +3019.7% 49447 ± 63% numa-numastat.node0.other_node 85104 ± 3% -56.2% 37244 ± 83% numa-numastat.node1.other_node 169349 ± 19% -21.8% 132475 meminfo.AnonHugePages 301479 ± 10% -11.8% 265842 meminfo.AnonPages 333754 ± 9% -10.6% 298511 meminfo.Inactive 333754 ± 9% -10.6% 298511 meminfo.Inactive(anon) 11540 ± 12% -15.2% 9785 ± 3% sched_debug.cfs_rq:/.load.avg 17531 ± 77% -77.9% 3878 ± 9% sched_debug.cfs_rq:/.load.stddev 28103 ± 22% +50.3% 42227 ± 30% sched_debug.cpu.avg_idle.min 6188 ± 20% +38.9% 8595 ± 4% sched_debug.cpu.curr->pid.min 495.48 ± 24% -46.2% 266.34 ± 18% sched_debug.cpu.curr->pid.stddev 3.336e+10 -5.6% 3.148e+10 ± 6% perf-stat.i.branch-instructions 0.03 ± 7% +0.0 0.04 ± 43% perf-stat.i.dTLB-load-miss-rate% 0.01 ± 18% +0.0 0.01 ± 10% perf-stat.i.dTLB-store-miss-rate% 6253 ± 3% -18.2% 5117 ± 9% perf-stat.i.instructions-per-iTLB-miss 0.64 +0.0 0.67 perf-stat.overall.branch-miss-rate% 3.264e+10 -5.5% 3.084e+10 ± 5% perf-stat.ps.branch-instructions 0.01 ± 5% +13.5% 0.01 ± 2% perf-sched.sch_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.__x64_sys_nanosleep.do_syscall_64 0.05 ± 83% +1464.2% 0.85 ±157% perf-sched.sch_delay.max.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64 494.00 ± 4% +734.5% 4122 ± 3% perf-sched.wait_and_delay.count.preempt_schedule_common._cond_resched.__splice_from_pipe.splice_from_pipe.direct_splice_actor 5392 ± 3% -98.4% 87.00 ± 10% perf-sched.wait_and_delay.count.preempt_schedule_common._cond_resched.generic_file_buffered_read.generic_file_splice_read.splice_direct_to_actor 18.80 ± 20% -68.8% 5.86 ± 73% perf-sched.wait_and_delay.max.ms.preempt_schedule_common._cond_resched.generic_file_buffered_read.generic_file_splice_read.splice_direct_to_actor 0.59 ± 24% -45.0% 0.32 ± 22% perf-sched.wait_time.avg.ms.wait_for_partner.fifo_open.do_dentry_open.path_openat 18.80 ± 20% -68.8% 5.86 ± 73% perf-sched.wait_time.max.ms.preempt_schedule_common._cond_resched.generic_file_buffered_read.generic_file_splice_read.splice_direct_to_actor 7626 -38.2% 4716 ± 33% interrupts.CPU30.NMI:Non-maskable_interrupts 7626 -38.2% 4716 ± 33% interrupts.CPU30.PMI:Performance_monitoring_interrupts 18521 ± 44% +241.7% 63289 ± 80% interrupts.CPU42.RES:Rescheduling_interrupts 30879 ± 63% +91.0% 58971 ± 31% interrupts.CPU49.RES:Rescheduling_interrupts 37970 ± 19% +115.4% 81806 ± 33% interrupts.CPU5.CAL:Function_call_interrupts 48131 ± 35% -55.7% 21307 ± 23% interrupts.CPU65.RES:Rescheduling_interrupts 33689 ± 39% +186.7% 96598 ± 88% interrupts.CPU7.CAL:Function_call_interrupts 37234 ± 52% +76.5% 65709 ± 45% interrupts.CPU71.CAL:Function_call_interrupts 22154 ± 18% +126.8% 50249 ± 70% interrupts.CPU82.RES:Rescheduling_interrupts 16632 ± 60% +310.7% 68311 ± 51% interrupts.CPU9.CAL:Function_call_interrupts 17920 ± 45% +264.1% 65238 ± 48% interrupts.CPU95.CAL:Function_call_interrupts 83.19 -3.7 79.44 ± 5% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe 83.28 -3.8 79.53 ± 5% perf-profile.children.cycles-pp.do_syscall_64 0.68 ± 3% +0.0 0.71 ± 2% perf-profile.children.cycles-pp.sched_clock 0.32 ± 12% +0.1 0.39 ± 6% perf-profile.children.cycles-pp.set_next_buddy 0.00 +0.1 0.07 ± 12% perf-profile.children.cycles-pp.perf_mux_hrtimer_handler 1.31 +0.1 1.39 ± 3% perf-profile.children.cycles-pp.__update_load_avg_se 3.41 +0.2 3.56 ± 2% perf-profile.children.cycles-pp.switch_mm_irqs_off 0.08 +0.0 0.10 ± 5% perf-profile.self.cycles-pp.perf_trace_run_bpf_submit 0.08 ± 10% +0.0 0.10 ± 4% perf-profile.self.cycles-pp.__bitmap_and 0.28 ± 9% +0.1 0.33 ± 9% perf-profile.self.cycles-pp.pipe_poll 0.93 +0.1 0.99 perf-profile.self.cycles-pp.switch_mm_irqs_off 0.29 ± 13% +0.1 0.36 ± 7% perf-profile.self.cycles-pp.set_next_buddy 1.28 +0.1 1.36 ± 3% perf-profile.self.cycles-pp.__update_load_avg_se 9207 ± 21% -40.3% 5500 ± 26% softirqs.CPU10.SCHED 8966 ± 22% -36.9% 5653 ± 18% softirqs.CPU11.SCHED 9107 ± 21% -41.4% 5341 ± 19% softirqs.CPU12.SCHED 8925 ± 23% -41.6% 5215 ± 14% softirqs.CPU13.SCHED 9040 ± 21% -41.5% 5285 ± 16% softirqs.CPU14.SCHED 8972 ± 23% -40.6% 5327 ± 16% softirqs.CPU15.SCHED 9021 ± 22% -41.5% 5279 ± 13% softirqs.CPU16.SCHED 8932 ± 20% -40.0% 5357 ± 15% softirqs.CPU17.SCHED 8870 ± 21% -39.0% 5409 ± 20% softirqs.CPU18.SCHED 8866 ± 23% -39.9% 5330 ± 19% softirqs.CPU19.SCHED 9042 ± 21% -37.1% 5683 ± 16% softirqs.CPU2.SCHED 8898 ± 22% -40.7% 5274 ± 20% softirqs.CPU20.SCHED 8989 ± 22% -39.8% 5412 ± 18% softirqs.CPU21.SCHED 8876 ± 22% -41.2% 5223 ± 19% softirqs.CPU22.SCHED 8892 ± 19% -38.7% 5455 ± 16% softirqs.CPU23.SCHED 6924 ± 31% +58.8% 10997 ± 7% softirqs.CPU24.SCHED 7098 ± 30% +64.3% 11663 ± 6% softirqs.CPU25.SCHED 7040 ± 32% +63.8% 11534 ± 7% softirqs.CPU26.SCHED 6977 ± 32% +63.6% 11416 ± 7% softirqs.CPU27.SCHED 7088 ± 30% +58.8% 11255 ± 8% softirqs.CPU28.SCHED 6857 ± 33% +65.5% 11352 ± 6% softirqs.CPU29.SCHED 9142 ± 25% -41.4% 5358 ± 19% softirqs.CPU3.SCHED 7061 ± 29% +62.5% 11472 ± 7% softirqs.CPU30.SCHED 6878 ± 30% +65.2% 11362 ± 8% softirqs.CPU31.SCHED 7173 ± 30% +64.9% 11828 ± 5% softirqs.CPU32.SCHED 7013 ± 31% +62.6% 11405 ± 8% softirqs.CPU33.SCHED 14139 ± 27% +30.8% 18492 ± 24% softirqs.CPU34.RCU 7033 ± 32% +58.8% 11166 ± 7% softirqs.CPU34.SCHED 6963 ± 29% +61.5% 11248 ± 7% softirqs.CPU35.SCHED 7012 ± 30% +61.6% 11332 ± 9% softirqs.CPU36.SCHED 6923 ± 29% +63.4% 11310 ± 8% softirqs.CPU37.SCHED 7070 ± 32% +59.8% 11298 ± 8% softirqs.CPU38.SCHED 6818 ± 31% +67.0% 11389 ± 7% softirqs.CPU39.SCHED 9088 ± 20% -42.2% 5250 ± 15% softirqs.CPU4.SCHED 7040 ± 29% +61.5% 11368 ± 7% softirqs.CPU40.SCHED 6980 ± 29% +62.2% 11321 ± 7% softirqs.CPU41.SCHED 6926 ± 29% +64.3% 11379 ± 8% softirqs.CPU42.SCHED 7062 ± 30% +57.4% 11114 ± 7% softirqs.CPU43.SCHED 6960 ± 31% +62.1% 11279 ± 9% softirqs.CPU44.SCHED 6854 ± 31% +65.0% 11310 ± 7% softirqs.CPU45.SCHED 7152 ± 29% +58.9% 11362 ± 9% softirqs.CPU46.SCHED 6828 ± 31% +64.2% 11210 ± 8% softirqs.CPU47.SCHED 8903 ± 21% -41.9% 5170 ± 17% softirqs.CPU48.SCHED 9048 ± 21% -41.0% 5336 ± 19% softirqs.CPU49.SCHED 8974 ± 23% -42.9% 5124 ± 18% softirqs.CPU5.SCHED 8742 ± 23% -40.8% 5177 ± 17% softirqs.CPU50.SCHED 8647 ± 23% -38.3% 5335 ± 19% softirqs.CPU51.SCHED 8783 ± 22% -41.7% 5118 ± 10% softirqs.CPU52.SCHED 8659 ± 26% -40.2% 5175 ± 18% softirqs.CPU53.SCHED 8852 ± 23% -40.2% 5292 ± 15% softirqs.CPU54.SCHED 9070 ± 20% -43.2% 5153 ± 16% softirqs.CPU55.SCHED 9191 ± 17% -42.7% 5266 ± 15% softirqs.CPU56.SCHED 8884 ± 24% -41.8% 5171 ± 16% softirqs.CPU57.SCHED 8986 ± 23% -40.5% 5344 ± 18% softirqs.CPU58.SCHED 9501 ± 24% -44.9% 5233 ± 20% softirqs.CPU59.SCHED 8897 ± 21% -38.5% 5467 ± 18% softirqs.CPU6.SCHED 9260 ± 18% -42.4% 5335 ± 22% softirqs.CPU60.SCHED 8966 ± 21% -42.3% 5170 ± 15% softirqs.CPU61.SCHED 8963 ± 22% -39.2% 5454 ± 16% softirqs.CPU62.SCHED 8948 ± 22% -39.0% 5462 ± 17% softirqs.CPU63.SCHED 8980 ± 22% -41.1% 5289 ± 16% softirqs.CPU64.SCHED 8969 ± 20% -41.4% 5260 ± 15% softirqs.CPU65.SCHED 8891 ± 23% -41.4% 5211 ± 20% softirqs.CPU66.SCHED 9193 ± 23% -40.0% 5520 ± 14% softirqs.CPU67.SCHED 8936 ± 24% -40.7% 5296 ± 16% softirqs.CPU68.SCHED 8871 ± 22% -40.0% 5320 ± 16% softirqs.CPU69.SCHED 8962 ± 19% -41.8% 5216 ± 17% softirqs.CPU7.SCHED 8671 ± 24% -38.7% 5315 ± 19% softirqs.CPU70.SCHED 7198 ± 29% +53.9% 11076 ± 4% softirqs.CPU72.SCHED 7133 ± 29% +61.0% 11488 ± 9% softirqs.CPU73.SCHED 6952 ± 30% +66.9% 11602 ± 8% softirqs.CPU74.SCHED 6975 ± 31% +60.8% 11214 ± 7% softirqs.CPU75.SCHED 6985 ± 31% +58.4% 11065 ± 10% softirqs.CPU76.SCHED 6811 ± 31% +63.6% 11146 ± 6% softirqs.CPU77.SCHED 7006 ± 29% +62.0% 11347 ± 7% softirqs.CPU78.SCHED 6827 ± 32% +65.8% 11316 ± 9% softirqs.CPU79.SCHED 8957 ± 19% -40.8% 5304 ± 18% softirqs.CPU8.SCHED 7102 ± 32% +59.7% 11345 ± 8% softirqs.CPU80.SCHED 7023 ± 30% +60.3% 11258 ± 8% softirqs.CPU81.SCHED 7046 ± 31% +57.8% 11121 ± 6% softirqs.CPU82.SCHED 6966 ± 30% +57.1% 10941 ± 8% softirqs.CPU83.SCHED 6953 ± 30% +62.0% 11261 ± 10% softirqs.CPU85.SCHED 6884 ± 31% +63.0% 11220 ± 9% softirqs.CPU86.SCHED 6765 ± 32% +66.3% 11249 ± 8% softirqs.CPU87.SCHED 6963 ± 29% +63.8% 11403 ± 7% softirqs.CPU88.SCHED 6869 ± 31% +63.6% 11241 ± 8% softirqs.CPU89.SCHED 9002 ± 21% -43.2% 5115 ± 18% softirqs.CPU9.SCHED 6759 ± 33% +69.4% 11450 ± 9% softirqs.CPU90.SCHED 7003 ± 30% +58.9% 11130 ± 9% softirqs.CPU91.SCHED 6994 ± 28% +64.9% 11533 ± 9% softirqs.CPU92.SCHED 6839 ± 32% +66.1% 11358 ± 6% softirqs.CPU93.SCHED 7121 ± 29% +59.2% 11339 ± 7% softirqs.CPU94.SCHED 6798 ± 32% +67.9% 11412 ± 7% softirqs.CPU95.SCHED stress-ng.sendfile.ops 2e+07 +-----------------------------------------------------------------+ | O OO OO | 1.9e+07 |-+O OOOOOOO OO OOOO | |OOOO O O OOO O | | O O O O | 1.8e+07 |-+ | | | 1.7e+07 |-+ | | | 1.6e+07 |-+ | | | | | 1.5e+07 |+++++ + ++++++++++ +++++++++++ ++++++ +++++++ ++++++++++ + +++++| |+ ++++ + +++ +++++ + ++ +++++ ++++++++ +++++ + + ++++ + | 1.4e+07 +-----------------------------------------------------------------+ stress-ng.sendfile.ops_per_sec 660000 +------------------------------------------------------------------+ 640000 |-+ OO OOOOO O | |OOOOOOOO O OOOOOOO | 620000 |-+OO O | 600000 |-+ O O O | | | 580000 |-+ | 560000 |-+ | 540000 |-+ | | | 520000 |-+ | 500000 |-+ + + + + + | |++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++| 480000 |-+ ++ + + ++ + + + + + +++++ ++ + + ++ + + | 460000 +------------------------------------------------------------------+ 7000 +--------------------------------------------------------------------+ | | 6000 |-+ + + + + + + | |++++++:++++++++++++:+++++++++++::++++:+ + ++++++:+++++++++++::++++++| 5000 |-+ ++++ + ++ + ++ + + + ++ + ++++ + + ++ + + + ++ + ++ | | | 4000 |-+ | | | 3000 |-+ | | | 2000 |-+ | | | 1000 |-+ | | | 0 +--------------------------------------------------------------------+ [*] 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, Oliver Sang

9 months

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[nohz] 7dbadb2bd2: WARNING:at_kernel/time/tick-sched.c:#tick_nohz_idle_exit

by kernel test robot

Greeting, FYI, we noticed the following commit (built with gcc-9): commit: 7dbadb2bd2ebca693ab8fdcf80b032bb3e06ad2b ("[PATCH V1] nohz: exit nohz idle before invoking softirq") url: https://github.com/0day-ci/linux/commits/chenshiyan/nohz-exit-nohz-idle-b... base: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git 5c8fe583cce542aa0b84adc939ce85293de36e5e in testcase: rcuscale version: with following parameters: runtime: 300s scale_type: srcu on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): +------------------------------------------------------------------+-----------+------------+ | | v5.11-rc1 | 7dbadb2bd2 | +------------------------------------------------------------------+-----------+------------+ | boot_successes | 62 | 0 | | WARNING:at_kernel/time/tick-sched.c:#tick_nohz_idle_exit | 0 | 4 | | RIP:tick_nohz_idle_exit | 0 | 4 | | RIP:_raw_spin_unlock_irq | 0 | 3 | | WARNING:at_kernel/locking/lockdep.c:#lockdep_hardirqs_on_prepare | 0 | 4 | | RIP:lockdep_hardirqs_on_prepare | 0 | 4 | | kernel_BUG_at_kernel/sched/core.c | 0 | 4 | | invalid_opcode:#[##] | 0 | 4 | | RIP:preempt_schedule_irq | 0 | 4 | | RIP:vprintk_emit | 0 | 2 | | RIP:d_revalidate | 0 | 1 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 4 | | RIP:free_unref_page_list | 0 | 1 | | RIP:__orc_find | 0 | 1 | | RIP:__init_waitqueue_head | 0 | 1 | | RIP:__unwind_start | 0 | 1 | | RIP:unwind_next_frame | 0 | 1 | | RIP:__call_rcu | 0 | 1 | +------------------------------------------------------------------+-----------+------------+ If you fix the issue, kindly add following tag Reported-by: kernel test robot <oliver.sang(a)intel.com> [ 2.985918] WARNING: CPU: 0 PID: 1 at kernel/time/tick-sched.c:1237 tick_nohz_idle_exit+0x6c/0x17a [ 2.985918] Modules linked in: [ 2.985918] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.11.0-rc1-g7dbadb2bd2eb #1 [ 2.985918] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 2.985918] RIP: 0010:tick_nohz_idle_exit+0x6c/0x17a [ 2.985918] Code: e0 2a 48 c1 ea 03 8a 04 02 4c 89 e2 83 e2 07 38 d0 7f 0c 84 c0 74 08 4c 89 e7 e8 5a d5 19 00 f6 45 4c 01 75 07 e8 b0 30 04 00 <0f> 0b e8 a9 30 04 00 48 8d bd b0 00 00 00 b8 ff ff 37 00 48 89 fa [ 2.985918] RSP: 0000:ffffc9000001fb70 EFLAGS: 00010093 [ 2.985918] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 2.985918] RDX: ffff8881001b0000 RSI: ffffffff984354a9 RDI: ffff8881f1ff3420 [ 2.985918] RBP: ffff8881f1fe6ee0 R08: 0000000000000000 R09: 0000000000000001 [ 2.985918] R10: fffffbfff367b7c7 R11: ffffffff9b3dbe37 R12: ffff8881f1fe6f2c [ 2.985918] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 2.985918] FS: 0000000000000000(0000) GS:ffff8881f1e00000(0000) knlGS:0000000000000000 [ 2.985918] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.985918] CR2: ffff88823ffff000 CR3: 0000000204216000 CR4: 00000000000406b0 [ 2.985918] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2.985918] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2.985918] Call Trace: [ 2.985918] __irq_exit_rcu+0x72/0xde [ 2.985918] irq_exit_rcu+0x5/0xd [ 2.985918] sysvec_apic_timer_interrupt+0xa0/0xae [ 2.985918] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 2.985918] RIP: 0010:_raw_spin_unlock_irq+0x27/0x30 [ 2.985918] Code: b0 8b fe 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 e8 b3 96 fe 48 89 ef e8 2c 48 97 fe e8 b1 8b a7 fe fb 65 ff 0d 31 ac 5e 66 <75> 05 e8 e1 eb 7c fe 5d c3 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 [ 2.985918] RSP: 0000:ffffc9000001fc70 EFLAGS: 00000286 [ 2.985918] RAX: 000000000000041d RBX: ffff8881001b0000 RCX: ffffffff98395155 [ 2.985918] RDX: ffffffff98395155 RSI: 0000000000000008 RDI: ffffffff99a34307 [ 2.985918] RBP: ffff8881002a7228 R08: fffffbfff386608f R09: 0000000000000001 [ 2.985918] R10: fffffbfff386608f R11: ffffffff9c330477 R12: 7fffffffffffffff [ 2.985918] R13: ffff8881002a7228 R14: ffffc9000001fcd8 R15: ffff8881001b2540 [ 2.985918] ? test_bit+0x23/0x2e [ 2.985918] ? _raw_spin_unlock_irq+0x1f/0x30 [ 2.985918] __wait_for_common+0x2d0/0x2ff [ 2.985918] ? usleep_range+0x11b/0x11b [ 2.985918] ? try_to_wake_up+0x476/0x807 [ 2.985918] ? bit_wait_io_timeout+0x8a/0x8a [ 2.985918] ? __kthread_bind_mask+0x8e/0x99 [ 2.985918] kthread_park+0xb8/0xe1 [ 2.985918] __smpboot_create_thread+0x197/0x2ef [ 2.985918] smpboot_create_threads+0x54/0xa0 [ 2.985918] ? idle_thread_get+0x8c/0x8c [ 2.985918] cpuhp_invoke_callback+0x247/0x763 [ 2.985918] _cpu_up+0x22c/0x360 [ 2.985918] cpu_up+0x8d/0xa8 [ 2.985918] bringup_nonboot_cpus+0xa3/0xa5 [ 2.985918] smp_init+0x29/0xef [ 2.985918] kernel_init_freeable+0x1b3/0x3f0 [ 2.985918] ? rest_init+0x185/0x185 [ 2.985918] kernel_init+0xd/0x160 [ 2.985918] ret_from_fork+0x22/0x30 [ 2.985918] irq event stamp: 1054 [ 2.985918] hardirqs last enabled at (1053): [<ffffffff99a34307>] _raw_spin_unlock_irq+0x1f/0x30 [ 2.985918] hardirqs last disabled at (1054): [<ffffffff99a1d020>] sysvec_apic_timer_interrupt+0xb/0xae [ 2.985918] softirqs last enabled at (878): [<ffffffff9824a24b>] fpu__copy+0x12b/0x386 [ 2.985918] softirqs last disabled at (876): [<ffffffff9824a199>] fpu__copy+0x79/0x386 [ 2.985918] random: get_random_bytes called from init_oops_id+0x28/0x42 with crng_init=0 [ 2.985918] ---[ end trace 162d069718170ff7 ]--- To reproduce: # build kernel cd linux cp config-5.11.0-rc1-g7dbadb2bd2eb .config make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 olddefconfig prepare modules_prepare 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, Oliver Sang

9 months

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[blokc/blk] d828aefa7a: xfstests.xfs.372.fail

by kernel test robot

Greeting, FYI, we noticed the following commit (built with gcc-9): commit: d828aefa7a1bdf7fbc5073fdb66da9bfb1264c21 ("[PATCH v2] blokc/blk-merge: remove the next_bvec label in __blk_bios_map_sg()") url: https://github.com/0day-ci/linux/commits/Hui-Su/blokc-blk-merge-remove-th... base: https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git for-next in testcase: xfstests version: xfstests-x86_64-d41dcbd-1_20201218 with following parameters: disk: 4HDD fs: xfs test: xfs-reflink-18 ucode: 0x21 test-description: xfstests is a regression test suite for xfs and other files ystems. test-url: git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git on test machine: 4 threads Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz with 8G memory caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): If you fix the issue, kindly add following tag Reported-by: kernel test robot <oliver.sang(a)intel.com> 2019-02-14 10:12:19 export TEST_DIR=/fs/sdb2 2019-02-14 10:12:19 export TEST_DEV=/dev/sdb2 2019-02-14 10:12:19 export FSTYP=xfs 2019-02-14 10:12:19 export SCRATCH_MNT=/fs/scratch 2019-02-14 10:12:19 mkdir /fs/scratch -p 2019-02-14 10:12:19 export SCRATCH_DEV=/dev/sdb5 2019-02-14 10:12:19 export SCRATCH_LOGDEV=/dev/sdb3 2019-02-14 10:12:19 export SCRATCH_XFS_LIST_METADATA_FIELDS=u3.sfdir3.hdr.parent.i4 2019-02-14 10:12:19 export SCRATCH_XFS_LIST_FUZZ_VERBS=random 2019-02-14 10:12:19 export MKFS_OPTIONS=-mreflink=1 2019-02-14 10:12:19 sed "s:^:xfs/:" //lkp/benchmarks/xfstests/tests/xfs-reflink-18 2019-02-14 10:12:19 ./check xfs/372 xfs/373 FSTYP -- xfs (debug) PLATFORM -- Linux/x86_64 lkp-ivb-d04 5.10.0-10938-gd828aefa7a1b #6 SMP Wed Dec 23 22:57:37 CST 2020 MKFS_OPTIONS -- -f -mreflink=1 /dev/sdb5 MOUNT_OPTIONS -- /dev/sdb5 /fs/scratch xfs/372 - output mismatch (see /lkp/benchmarks/xfstests/results//xfs/372.out.bad) --- tests/xfs/372.out 2020-12-18 04:10:02.000000000 +0000 +++ /lkp/benchmarks/xfstests/results//xfs/372.out.bad 2019-02-14 10:14:04.137007985 +0000 @@ -1,4 +1,5 @@ QA output created by 372 Format and populate Fuzz refcountbt +xfs_mdrestore: error reading from metadump file Done fuzzing refcountbt ... (Run 'diff -u /lkp/benchmarks/xfstests/tests/xfs/372.out /lkp/benchmarks/xfstests/results//xfs/372.out.bad' to see the entire diff) xfs/373 - output mismatch (see /lkp/benchmarks/xfstests/results//xfs/373.out.bad) --- tests/xfs/373.out 2020-12-18 04:10:02.000000000 +0000 +++ /lkp/benchmarks/xfstests/results//xfs/373.out.bad 2019-02-14 10:15:47.481014528 +0000 @@ -1,4 +1,5 @@ QA output created by 373 Format and populate Fuzz refcountbt +xfs_mdrestore: error reading from metadump file Done fuzzing refcountbt ... (Run 'diff -u /lkp/benchmarks/xfstests/tests/xfs/373.out /lkp/benchmarks/xfstests/results//xfs/373.out.bad' to see the entire diff) Ran: xfs/372 xfs/373 Failures: xfs/372 xfs/373 Failed 2 of 2 tests 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 Thanks, Oliver Sang

9 months

2
1
0 / 0

[drm/i915/gt] eedd8093ed: assertion_failure

by kernel test robot

Greeting, FYI, we noticed the following commit (built with gcc-9): commit: eedd8093ed11ccdf4a4465f1c499c945e093aeaa ("[Intel-gfx] [CI 1/9] drm/i915/gt: Replace direct submit with direct call to tasklet") url: https://github.com/0day-ci/linux/commits/Chris-Wilson/drm-i915-gt-Replace... base: git://anongit.freedesktop.org/drm/drm-tip drm-tip in testcase: igt version: igt-x86_64-c88c4cc7-1_20201215 with following parameters: group: group-01 ucode: 0xe2 on test machine: 8 threads Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz with 28G memory caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): If you fix the issue, kindly add following tag Reported-by: kernel test robot <oliver.sang(a)intel.com> [ 513.814951] With one display connected: 2.96us [ 513.814952] [ 513.816036] [IGT] gem_exec_nop: starting dynamic subtest vecs0 [ 513.820274] Without a display connected (headless): 3.87us [ 513.826714] [ 513.835841] (gem_exec_nop:2988) CRITICAL: Test assertion failure function headless, file ../tests/i915/gem_exec_nop.c:431: [ 513.835842] [ 513.850958] (gem_exec_nop:2988) CRITICAL: Failed assertion: (n_headless) <= (1.0 + 0.1f) * n_display && (n_headless) >= (1.0 - 0.1f) * n_display [ 513.850959] [ 513.867477] (gem_exec_nop:2988) CRITICAL: 'n_headless' != 'n_display' (0.000004 not within 10.000000% tolerance of 0.000003) [ 513.867478] 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 Thanks, Oliver Sang

9 months

1
0
0 / 0

[mm] 4df910620b: will-it-scale.per_process_ops 37.7% improvement

by kernel test robot

Greeting, FYI, we noticed a 37.7% improvement of will-it-scale.per_process_ops due to commit: commit: 4df910620bebb5cfe234af16ac8f6474b60215fd ("mm: memcg: relayout structure mem_cgroup to avoid cache interference") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master in testcase: will-it-scale on test machine: 144 threads Intel(R) Xeon(R) CPU E7-8890 v3 @ 2.50GHz with 512G memory with following parameters: nr_task: 50% mode: process test: page_fault2 cpufreq_governor: performance ucode: 0x16 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 In addition to that, the commit also has significant impact on the following tests: +------------------+------------------------------------------------------------------------+ | testcase: change | will-it-scale: will-it-scale.per_process_ops 2.0% improvement | | test machine | 48 threads Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz with 112G memory | | test parameters | cpufreq_governor=performance | | | mode=process | | | nr_task=50% | | | test=page_fault2 | | | ucode=0x42e | +------------------+------------------------------------------------------------------------+ | testcase: change | will-it-scale: will-it-scale.per_process_ops 12.1% improvement | | test machine | 144 threads Intel(R) Xeon(R) CPU E7-8890 v3 @ 2.50GHz with 512G memory | | test parameters | cpufreq_governor=performance | | | mode=process | | | nr_task=100% | | | test=page_fault2 | | | ucode=0x16 | +------------------+------------------------------------------------------------------------+ 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/ucode: gcc-9/performance/x86_64-rhel-8.3/process/50%/debian-10.4-x86_64-20200603.cgz/lkp-hsw-4ex1/page_fault2/will-it-scale/0x16 commit: fa02fcd94b ("Merge tag 'media/v5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media") 4df910620b ("mm: memcg: relayout structure mem_cgroup to avoid cache interference") fa02fcd94b0c8dff 4df910620bebb5cfe234af16ac8 ---------------- --------------------------- fail:runs %reproduction fail:runs | | | 3:4 34% 4:4 perf-profile.calltrace.cycles-pp.error_entry.testcase 3:4 36% 5:4 perf-profile.children.cycles-pp.error_entry 3:4 30% 4:4 perf-profile.self.cycles-pp.error_entry %stddev %change %stddev \ | \ 10516193 +37.7% 14476896 will-it-scale.72.processes 146057 +37.7% 201067 will-it-scale.per_process_ops 10516193 +37.7% 14476896 will-it-scale.workload 59980 +10.8% 66467 meminfo.max_used_kB 0.08 ± 2% +0.0 0.09 ± 4% mpstat.cpu.all.soft% 29092 ± 3% +23.6% 35961 ± 8% cpuidle.POLL.time 8949 ± 6% +25.1% 11194 ± 8% cpuidle.POLL.usage 5203 ± 10% -17.3% 4300 ± 8% numa-meminfo.node0.PageTables 68326 ± 12% -14.9% 58153 ± 9% numa-meminfo.node0.SUnreclaim 1675674 ± 3% +27.7% 2140554 ± 10% numa-meminfo.node1.AnonPages.max 36696 ± 11% -28.2% 26346 ± 12% numa-meminfo.node1.KReclaimable 36696 ± 11% -28.2% 26346 ± 12% numa-meminfo.node1.SReclaimable 4212 ± 5% +14.0% 4802 ± 9% numa-meminfo.node2.PageTables 4683 +1.9% 4772 proc-vmstat.nr_page_table_pages 3.168e+09 +37.6% 4.359e+09 proc-vmstat.numa_hit 3.168e+09 +37.6% 4.359e+09 proc-vmstat.numa_local 3.171e+09 +37.5% 4.362e+09 proc-vmstat.pgalloc_normal 3.161e+09 +37.6% 4.349e+09 proc-vmstat.pgfault 3.168e+09 +37.6% 4.358e+09 proc-vmstat.pgfree 8.176e+08 +33.8% 1.094e+09 numa-numastat.node0.local_node 8.177e+08 +33.8% 1.094e+09 numa-numastat.node0.numa_hit 7.905e+08 +37.8% 1.089e+09 numa-numastat.node1.local_node 7.906e+08 +37.8% 1.09e+09 numa-numastat.node1.numa_hit 15636 ± 82% +111.0% 32997 ± 16% numa-numastat.node1.other_node 7.865e+08 +38.5% 1.09e+09 numa-numastat.node2.local_node 7.866e+08 +38.5% 1.09e+09 numa-numastat.node2.numa_hit 7.764e+08 +40.4% 1.09e+09 numa-numastat.node3.local_node 7.764e+08 +40.4% 1.09e+09 numa-numastat.node3.numa_hit 11.53 ± 6% +66.7% 19.22 sched_debug.cfs_rq:/.nr_spread_over.avg 30.62 ± 9% +89.9% 58.17 ± 39% sched_debug.cfs_rq:/.nr_spread_over.max 1.17 ± 41% +128.6% 2.67 ± 25% sched_debug.cfs_rq:/.nr_spread_over.min 6.13 ± 15% +54.3% 9.46 ± 15% sched_debug.cfs_rq:/.nr_spread_over.stddev -4142704 -17.9% -3401780 sched_debug.cfs_rq:/.spread0.min 0.00 ± 4% +115.1% 0.00 ± 25% sched_debug.cpu.next_balance.stddev 2904 ± 5% -12.2% 2550 ± 3% sched_debug.cpu.nr_switches.stddev 2487 ± 8% -11.9% 2191 ± 6% sched_debug.cpu.sched_count.stddev 1261 ± 8% -11.9% 1111 ± 6% sched_debug.cpu.sched_goidle.stddev 317588 ± 4% -6.8% 296039 ± 5% numa-vmstat.node0.nr_anon_pages 1300 ± 10% -17.4% 1074 ± 8% numa-vmstat.node0.nr_page_table_pages 17081 ± 12% -14.9% 14537 ± 9% numa-vmstat.node0.nr_slab_unreclaimable 4.069e+08 +33.8% 5.443e+08 numa-vmstat.node0.numa_hit 4.069e+08 +33.8% 5.443e+08 numa-vmstat.node0.numa_local 9173 ± 11% -28.2% 6586 ± 12% numa-vmstat.node1.nr_slab_reclaimable 3.941e+08 +37.4% 5.417e+08 numa-vmstat.node1.numa_hit 3.94e+08 +37.5% 5.415e+08 numa-vmstat.node1.numa_local 104864 ± 11% +17.4% 123112 ± 4% numa-vmstat.node1.numa_other 1054 ± 5% +13.7% 1199 ± 9% numa-vmstat.node2.nr_page_table_pages 3.92e+08 +38.3% 5.42e+08 numa-vmstat.node2.numa_hit 3.919e+08 +38.3% 5.419e+08 numa-vmstat.node2.numa_local 1222 ± 12% +19.1% 1456 ± 12% numa-vmstat.node3.nr_page_table_pages 3.868e+08 +40.4% 5.433e+08 numa-vmstat.node3.numa_hit 3.867e+08 +40.5% 5.432e+08 numa-vmstat.node3.numa_local 22655 ± 4% +11.5% 25263 ± 6% softirqs.CPU0.SCHED 10045 ± 2% -9.0% 9139 ± 6% softirqs.CPU1.RCU 9348 ± 6% -10.4% 8377 softirqs.CPU12.RCU 9601 ± 6% -12.6% 8396 ± 2% softirqs.CPU18.RCU 22521 ± 4% -22.2% 17522 ± 12% softirqs.CPU2.SCHED 9465 ± 5% -9.1% 8601 ± 5% softirqs.CPU25.RCU 9393 ± 5% -10.6% 8398 ± 3% softirqs.CPU26.RCU 9708 ± 4% -13.6% 8388 ± 2% softirqs.CPU27.RCU 9338 ± 7% -10.6% 8351 ± 2% softirqs.CPU28.RCU 9386 ± 5% -14.2% 8055 ± 8% softirqs.CPU31.RCU 9057 ± 7% -12.3% 7948 ± 6% softirqs.CPU36.RCU 18746 ± 20% -24.2% 14204 ± 22% softirqs.CPU4.SCHED 13616 ± 8% +22.3% 16654 ± 6% softirqs.CPU44.SCHED 13697 ± 16% +23.2% 16879 ± 12% softirqs.CPU48.SCHED 10234 ± 6% -14.8% 8719 softirqs.CPU5.RCU 12718 ± 21% +48.8% 18923 ± 23% softirqs.CPU58.SCHED 14544 ± 11% +11.4% 16196 ± 11% softirqs.CPU61.SCHED 9145 ± 7% -12.6% 7988 ± 3% softirqs.CPU70.RCU 21831 ± 6% +21.9% 26619 ± 9% softirqs.CPU74.SCHED 11254 ± 26% -28.0% 8101 ± 6% softirqs.CPU89.RCU 47398543 ± 12% -6.4e+06 41043074 ± 6% syscalls.sys_close.noise.100% 60480226 ± 8% -6e+06 54474054 ± 4% syscalls.sys_close.noise.2% 58842094 ± 9% -6.2e+06 52672651 ± 4% syscalls.sys_close.noise.25% 60405154 ± 8% -6e+06 54392442 ± 4% syscalls.sys_close.noise.5% 55525400 ± 10% -6.4e+06 49123129 ± 4% syscalls.sys_close.noise.50% 51399889 ± 10% -6.4e+06 45005108 ± 5% syscalls.sys_close.noise.75% 18095 ± 2% +11.9% 20244 syscalls.sys_mmap.med 4739 ± 6% -12.2% 4160 ± 3% syscalls.sys_mmap.min 1.337e+09 ± 2% +1.6e+08 1.501e+09 syscalls.sys_mmap.noise.100% 1.437e+09 +1.6e+08 1.592e+09 syscalls.sys_mmap.noise.2% 1.421e+09 +1.6e+08 1.58e+09 syscalls.sys_mmap.noise.25% 1.436e+09 +1.6e+08 1.592e+09 syscalls.sys_mmap.noise.5% 1.395e+09 ± 2% +1.7e+08 1.56e+09 syscalls.sys_mmap.noise.50% 1.368e+09 ± 2% +1.7e+08 1.538e+09 syscalls.sys_mmap.noise.75% 2934931 ± 3% -19.9% 2350376 ± 4% syscalls.sys_write.max 2.862e+09 ± 6% -6.2e+08 2.246e+09 ± 10% syscalls.sys_write.noise.100% 2.88e+09 ± 6% -6.1e+08 2.266e+09 ± 10% syscalls.sys_write.noise.2% 2.878e+09 ± 6% -6.1e+08 2.263e+09 ± 10% syscalls.sys_write.noise.25% 2.88e+09 ± 6% -6.1e+08 2.266e+09 ± 10% syscalls.sys_write.noise.5% 2.873e+09 ± 6% -6.1e+08 2.259e+09 ± 10% syscalls.sys_write.noise.50% 2.867e+09 ± 6% -6.1e+08 2.253e+09 ± 10% syscalls.sys_write.noise.75% 3191 ± 15% +68.3% 5370 ± 36% interrupts.CPU102.NMI:Non-maskable_interrupts 3191 ± 15% +68.3% 5370 ± 36% interrupts.CPU102.PMI:Performance_monitoring_interrupts 3249 ± 18% +97.1% 6404 ± 23% interrupts.CPU11.NMI:Non-maskable_interrupts 3249 ± 18% +97.1% 6404 ± 23% interrupts.CPU11.PMI:Performance_monitoring_interrupts 6027 ± 15% -46.9% 3197 ± 56% interrupts.CPU115.NMI:Non-maskable_interrupts 6027 ± 15% -46.9% 3197 ± 56% interrupts.CPU115.PMI:Performance_monitoring_interrupts 32.50 ± 9% +141.5% 78.50 ± 79% interrupts.CPU119.RES:Rescheduling_interrupts 5795 ± 31% -36.3% 3689 ± 7% interrupts.CPU12.NMI:Non-maskable_interrupts 5795 ± 31% -36.3% 3689 ± 7% interrupts.CPU12.PMI:Performance_monitoring_interrupts 31.25 ± 13% +244.0% 107.50 ± 79% interrupts.CPU127.RES:Rescheduling_interrupts 6072 ± 16% -32.6% 4094 ± 37% interrupts.CPU133.NMI:Non-maskable_interrupts 6072 ± 16% -32.6% 4094 ± 37% interrupts.CPU133.PMI:Performance_monitoring_interrupts 29.75 ± 13% +97.5% 58.75 ± 43% interrupts.CPU141.RES:Rescheduling_interrupts 3232 ± 22% +69.4% 5475 ± 28% interrupts.CPU25.NMI:Non-maskable_interrupts 3232 ± 22% +69.4% 5475 ± 28% interrupts.CPU25.PMI:Performance_monitoring_interrupts 5761 ± 20% +32.2% 7615 ± 4% interrupts.CPU29.NMI:Non-maskable_interrupts 5761 ± 20% +32.2% 7615 ± 4% interrupts.CPU29.PMI:Performance_monitoring_interrupts 5831 ± 24% -38.8% 3566 ± 32% interrupts.CPU3.NMI:Non-maskable_interrupts 5831 ± 24% -38.8% 3566 ± 32% interrupts.CPU3.PMI:Performance_monitoring_interrupts 4257 ± 14% +48.0% 6301 ± 10% interrupts.CPU36.NMI:Non-maskable_interrupts 4257 ± 14% +48.0% 6301 ± 10% interrupts.CPU36.PMI:Performance_monitoring_interrupts 6022 ± 26% -41.0% 3553 ± 12% interrupts.CPU48.NMI:Non-maskable_interrupts 6022 ± 26% -41.0% 3553 ± 12% interrupts.CPU48.PMI:Performance_monitoring_interrupts 4806 ± 16% -35.7% 3091 ± 12% interrupts.CPU99.NMI:Non-maskable_interrupts 4806 ± 16% -35.7% 3091 ± 12% interrupts.CPU99.PMI:Performance_monitoring_interrupts 17.42 -11.8% 15.36 perf-stat.i.MPKI 1.005e+10 +44.7% 1.455e+10 perf-stat.i.branch-instructions 0.52 -0.0 0.48 perf-stat.i.branch-miss-rate% 50729291 +33.0% 67453908 perf-stat.i.branch-misses 35.51 +2.5 37.97 perf-stat.i.cache-miss-rate% 3.216e+08 +34.8% 4.335e+08 perf-stat.i.cache-misses 9.03e+08 +26.0% 1.138e+09 perf-stat.i.cache-references 4.05 -30.3% 2.82 perf-stat.i.cpi 675.62 -25.2% 505.55 perf-stat.i.cycles-between-cache-misses 14707774 ± 9% +34.4% 19774179 ± 2% perf-stat.i.dTLB-load-misses 1.565e+10 +42.2% 2.225e+10 perf-stat.i.dTLB-loads 73922631 +37.6% 1.017e+08 perf-stat.i.dTLB-store-misses 9.737e+09 +36.5% 1.329e+10 perf-stat.i.dTLB-stores 93.39 +1.8 95.21 perf-stat.i.iTLB-load-miss-rate% 31412146 +37.9% 43313640 perf-stat.i.iTLB-load-misses 2165412 -3.2% 2096990 perf-stat.i.iTLB-loads 5.18e+10 +43.0% 7.408e+10 perf-stat.i.instructions 1657 +4.0% 1724 perf-stat.i.instructions-per-iTLB-miss 0.25 +43.4% 0.35 perf-stat.i.ipc 255.15 +40.9% 359.51 perf-stat.i.metric.M/sec 10465904 +37.7% 14408416 perf-stat.i.minor-faults 6.04 -2.6 3.48 ± 2% perf-stat.i.node-load-miss-rate% 15615698 -25.0% 11707799 perf-stat.i.node-load-misses 2.551e+08 +37.9% 3.516e+08 perf-stat.i.node-loads 8900850 +39.9% 12451889 perf-stat.i.node-store-misses 39327623 +40.3% 55186081 perf-stat.i.node-stores 10465907 +37.7% 14408418 perf-stat.i.page-faults 17.43 -11.9% 15.36 perf-stat.overall.MPKI 0.50 -0.0 0.46 perf-stat.overall.branch-miss-rate% 35.62 +2.5 38.09 perf-stat.overall.cache-miss-rate% 4.05 -30.3% 2.82 perf-stat.overall.cpi 652.44 -26.0% 482.69 perf-stat.overall.cycles-between-cache-misses 93.55 +1.8 95.38 perf-stat.overall.iTLB-load-miss-rate% 1649 +3.7% 1710 perf-stat.overall.instructions-per-iTLB-miss 0.25 +43.4% 0.35 perf-stat.overall.ipc 5.77 -2.5 3.22 perf-stat.overall.node-load-miss-rate% 1484194 +3.8% 1540211 perf-stat.overall.path-length 1.002e+10 +44.7% 1.449e+10 perf-stat.ps.branch-instructions 50561382 +32.9% 67185149 perf-stat.ps.branch-misses 3.205e+08 +34.8% 4.319e+08 perf-stat.ps.cache-misses 8.999e+08 +26.0% 1.134e+09 perf-stat.ps.cache-references 14656335 ± 9% +34.4% 19698887 ± 2% perf-stat.ps.dTLB-load-misses 1.559e+10 +42.2% 2.217e+10 perf-stat.ps.dTLB-loads 73657440 +37.6% 1.013e+08 perf-stat.ps.dTLB-store-misses 9.703e+09 +36.5% 1.324e+10 perf-stat.ps.dTLB-stores 31302020 +37.9% 43150913 perf-stat.ps.iTLB-load-misses 2157706 -3.2% 2088881 perf-stat.ps.iTLB-loads 5.163e+10 +43.0% 7.38e+10 perf-stat.ps.instructions 10429014 +37.6% 14354103 perf-stat.ps.minor-faults 15559965 -25.0% 11664101 perf-stat.ps.node-load-misses 2.542e+08 +37.8% 3.503e+08 perf-stat.ps.node-loads 8869865 +39.9% 12405459 perf-stat.ps.node-store-misses 39189951 +40.3% 54978655 perf-stat.ps.node-stores 10429016 +37.6% 14354105 perf-stat.ps.page-faults 1.561e+13 +42.9% 2.23e+13 perf-stat.total.instructions 16.08 ± 14% -11.3 4.75 ± 11% perf-profile.calltrace.cycles-pp.mem_cgroup_charge.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 6.45 ± 15% -5.0 1.43 ± 13% perf-profile.calltrace.cycles-pp.get_mem_cgroup_from_mm.mem_cgroup_charge.do_fault.__handle_mm_fault.handle_mm_fault 1.22 ± 10% -0.6 0.64 ± 9% perf-profile.calltrace.cycles-pp.__mod_memcg_lruvec_state.page_add_new_anon_rmap.alloc_set_pte.finish_fault.do_fault 1.38 ± 11% -0.5 0.83 ± 9% perf-profile.calltrace.cycles-pp.page_add_new_anon_rmap.alloc_set_pte.finish_fault.do_fault.__handle_mm_fault 0.68 ± 14% +0.2 0.92 ± 9% perf-profile.calltrace.cycles-pp.find_get_entry.find_lock_entry.shmem_getpage_gfp.shmem_fault.__do_fault 0.84 ± 13% +0.3 1.13 ± 9% perf-profile.calltrace.cycles-pp.find_lock_entry.shmem_getpage_gfp.shmem_fault.__do_fault.do_fault 0.77 ± 13% +0.3 1.07 ± 11% perf-profile.calltrace.cycles-pp.__irqentry_text_end.testcase 0.77 ± 13% +0.3 1.07 ± 13% perf-profile.calltrace.cycles-pp.__list_del_entry_valid.rmqueue_bulk.rmqueue.get_page_from_freelist.__alloc_pages_nodemask 0.61 ± 13% +0.3 0.92 ± 12% perf-profile.calltrace.cycles-pp.release_pages.tlb_flush_mmu.tlb_finish_mmu.unmap_region.__do_munmap 0.63 ± 13% +0.3 0.95 ± 12% perf-profile.calltrace.cycles-pp.tlb_flush_mmu.tlb_finish_mmu.unmap_region.__do_munmap.__vm_munmap 0.63 ± 13% +0.3 0.96 ± 12% perf-profile.calltrace.cycles-pp.tlb_finish_mmu.unmap_region.__do_munmap.__vm_munmap.__x64_sys_munmap 0.97 ± 13% +0.3 1.30 ± 9% perf-profile.calltrace.cycles-pp.shmem_getpage_gfp.shmem_fault.__do_fault.do_fault.__handle_mm_fault 1.07 ± 13% +0.4 1.52 ± 10% perf-profile.calltrace.cycles-pp.shmem_fault.__do_fault.do_fault.__handle_mm_fault.handle_mm_fault 1.17 ± 13% +0.5 1.64 ± 10% perf-profile.calltrace.cycles-pp.__do_fault.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 1.10 ± 12% +0.6 1.73 ± 12% perf-profile.calltrace.cycles-pp.free_pcppages_bulk.free_unref_page_list.release_pages.tlb_flush_mmu.zap_pte_range 0.00 +0.6 0.65 ± 10% perf-profile.calltrace.cycles-pp.__mod_memcg_lruvec_state.page_remove_rmap.zap_pte_range.unmap_page_range.unmap_vmas 0.81 ± 10% +0.7 1.48 ± 9% perf-profile.calltrace.cycles-pp.page_counter_try_charge.try_charge.mem_cgroup_charge.do_fault.__handle_mm_fault 1.29 ± 12% +0.7 1.98 ± 12% perf-profile.calltrace.cycles-pp.free_unref_page_list.release_pages.tlb_flush_mmu.zap_pte_range.unmap_page_range 1.27 ± 13% +0.8 2.08 ± 12% perf-profile.calltrace.cycles-pp.rmqueue_bulk.rmqueue.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_vma 0.00 +0.8 0.84 ± 12% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.rmqueue_bulk.rmqueue.get_page_from_freelist 0.00 +0.8 0.85 ± 12% perf-profile.calltrace.cycles-pp._raw_spin_lock.rmqueue_bulk.rmqueue.get_page_from_freelist.__alloc_pages_nodemask 1.66 ± 13% +0.9 2.58 ± 12% perf-profile.calltrace.cycles-pp.rmqueue.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_vma.do_fault 1.17 ± 10% +0.9 2.10 ± 9% perf-profile.calltrace.cycles-pp.try_charge.mem_cgroup_charge.do_fault.__handle_mm_fault.handle_mm_fault 1.86 ± 13% +1.0 2.85 ± 12% perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_vma.do_fault.__handle_mm_fault 2.06 ± 13% +1.1 3.12 ± 12% perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.alloc_pages_vma.do_fault.__handle_mm_fault.handle_mm_fault 2.37 ± 13% +1.2 3.53 ± 12% perf-profile.calltrace.cycles-pp.alloc_pages_vma.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 2.03 ± 14% +1.7 3.73 ± 14% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.release_pages.tlb_flush_mmu.zap_pte_range 2.04 ± 14% +1.7 3.75 ± 14% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.release_pages.tlb_flush_mmu.zap_pte_range.unmap_page_range 4.69 ± 13% +2.5 7.17 ± 13% perf-profile.calltrace.cycles-pp.release_pages.tlb_flush_mmu.zap_pte_range.unmap_page_range.unmap_vmas 5.01 ± 13% +2.6 7.63 ± 12% perf-profile.calltrace.cycles-pp.tlb_flush_mmu.zap_pte_range.unmap_page_range.unmap_vmas.unmap_region 3.28 ± 11% +3.1 6.34 ± 9% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.pagevec_lru_move_fn.lru_cache_add.alloc_set_pte 3.32 ± 10% +3.1 6.40 ± 9% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.pagevec_lru_move_fn.lru_cache_add.alloc_set_pte.finish_fault 7.62 ± 12% +3.3 10.96 ± 12% perf-profile.calltrace.cycles-pp.zap_pte_range.unmap_page_range.unmap_vmas.unmap_region.__do_munmap 7.62 ± 12% +3.4 10.97 ± 12% perf-profile.calltrace.cycles-pp.unmap_page_range.unmap_vmas.unmap_region.__do_munmap.__vm_munmap 7.62 ± 12% +3.4 10.98 ± 12% perf-profile.calltrace.cycles-pp.unmap_vmas.unmap_region.__do_munmap.__vm_munmap.__x64_sys_munmap 4.91 ± 11% +3.4 8.30 ± 9% perf-profile.calltrace.cycles-pp.pagevec_lru_move_fn.lru_cache_add.alloc_set_pte.finish_fault.do_fault 8.80 ± 11% +3.4 12.22 ± 10% perf-profile.calltrace.cycles-pp.alloc_set_pte.finish_fault.do_fault.__handle_mm_fault.handle_mm_fault 8.83 ± 11% +3.4 12.26 ± 10% perf-profile.calltrace.cycles-pp.finish_fault.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 5.01 ± 11% +3.4 8.45 ± 9% perf-profile.calltrace.cycles-pp.lru_cache_add.alloc_set_pte.finish_fault.do_fault.__handle_mm_fault 8.27 ± 12% +3.7 11.94 ± 12% perf-profile.calltrace.cycles-pp.__do_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe 8.27 ± 12% +3.7 11.94 ± 12% perf-profile.calltrace.cycles-pp.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 8.27 ± 12% +3.7 11.94 ± 12% perf-profile.calltrace.cycles-pp.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 8.27 ± 12% +3.7 11.94 ± 12% perf-profile.calltrace.cycles-pp.unmap_region.__do_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64 8.27 ± 12% +3.7 11.95 ± 12% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 8.27 ± 12% +3.7 11.95 ± 12% perf-profile.calltrace.cycles-pp.__munmap 8.27 ± 12% +3.7 11.95 ± 12% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__munmap 16.11 ± 14% -11.3 4.76 ± 11% perf-profile.children.cycles-pp.mem_cgroup_charge 6.48 ± 15% -5.0 1.45 ± 13% perf-profile.children.cycles-pp.get_mem_cgroup_from_mm 2.04 ± 12% -1.3 0.74 ± 10% perf-profile.children.cycles-pp.__count_memcg_events 2.30 ± 11% -0.9 1.43 ± 10% perf-profile.children.cycles-pp.__mod_memcg_state 2.30 ± 16% -0.8 1.51 ± 10% perf-profile.children.cycles-pp.native_irq_return_iret 1.38 ± 11% -0.5 0.83 ± 10% perf-profile.children.cycles-pp.page_add_new_anon_rmap 0.90 ± 12% -0.5 0.37 ± 10% perf-profile.children.cycles-pp.mem_cgroup_charge_statistics 0.28 ± 16% -0.2 0.09 ± 13% perf-profile.children.cycles-pp.uncharge_page 0.40 ± 14% -0.2 0.23 ± 10% perf-profile.children.cycles-pp.mem_cgroup_uncharge_list 0.06 ± 14% +0.0 0.08 ± 6% perf-profile.children.cycles-pp.pte_alloc_one 0.07 ± 7% +0.0 0.09 ± 9% perf-profile.children.cycles-pp.find_vma 0.06 ± 14% +0.0 0.08 ± 12% perf-profile.children.cycles-pp.get_task_policy 0.07 ± 7% +0.0 0.09 ± 7% perf-profile.children.cycles-pp.__might_sleep 0.06 ± 13% +0.0 0.09 ± 9% perf-profile.children.cycles-pp._cond_resched 0.08 ± 6% +0.0 0.10 ± 12% perf-profile.children.cycles-pp.up_read 0.07 ± 11% +0.0 0.10 ± 10% perf-profile.children.cycles-pp.unlock_page 0.07 ± 14% +0.0 0.10 ± 10% perf-profile.children.cycles-pp.page_mapping 0.04 ± 58% +0.0 0.07 ± 5% perf-profile.children.cycles-pp.vmacache_find 0.07 ± 7% +0.0 0.10 ± 13% perf-profile.children.cycles-pp.mem_cgroup_update_lru_size 0.06 ± 9% +0.0 0.09 ± 15% perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore 0.09 ± 14% +0.0 0.13 ± 10% perf-profile.children.cycles-pp.free_unref_page_commit 0.09 ± 14% +0.0 0.13 ± 14% perf-profile.children.cycles-pp.perf_swevent_get_recursion_context 0.01 ±173% +0.0 0.06 ± 9% perf-profile.children.cycles-pp.prep_new_page 0.09 ± 8% +0.0 0.14 ± 11% perf-profile.children.cycles-pp.__mod_zone_page_state 0.12 ± 16% +0.0 0.16 ± 10% perf-profile.children.cycles-pp.__list_add_valid 0.12 ± 14% +0.0 0.17 ± 9% perf-profile.children.cycles-pp.___might_sleep 0.08 ± 14% +0.0 0.12 ± 16% perf-profile.children.cycles-pp.cgroup_throttle_swaprate 0.03 ±100% +0.0 0.07 ± 11% perf-profile.children.cycles-pp.page_counter_uncharge 0.03 ±100% +0.0 0.07 ± 11% perf-profile.children.cycles-pp.page_counter_cancel 0.09 ± 8% +0.1 0.15 ± 14% perf-profile.children.cycles-pp.propagate_protected_usage 0.17 ± 8% +0.1 0.23 ± 11% perf-profile.children.cycles-pp.__mod_node_page_state 0.16 ± 13% +0.1 0.22 ± 12% perf-profile.children.cycles-pp.sync_regs 0.20 ± 14% +0.1 0.27 ± 11% perf-profile.children.cycles-pp.___perf_sw_event 0.24 ± 10% +0.1 0.32 ± 12% perf-profile.children.cycles-pp.__mod_lruvec_state 0.30 ± 14% +0.1 0.41 ± 8% perf-profile.children.cycles-pp.xas_load 0.34 ± 12% +0.1 0.47 ± 12% perf-profile.children.cycles-pp.__perf_sw_event 0.33 ± 13% +0.2 0.48 ± 10% perf-profile.children.cycles-pp.free_pages_and_swap_cache 0.68 ± 13% +0.2 0.92 ± 9% perf-profile.children.cycles-pp.find_get_entry 0.85 ± 13% +0.3 1.15 ± 9% perf-profile.children.cycles-pp.find_lock_entry 0.77 ± 13% +0.3 1.07 ± 11% perf-profile.children.cycles-pp.__irqentry_text_end 0.64 ± 13% +0.3 0.96 ± 12% perf-profile.children.cycles-pp.tlb_finish_mmu 0.98 ± 13% +0.3 1.31 ± 9% perf-profile.children.cycles-pp.shmem_getpage_gfp 1.08 ± 13% +0.4 1.52 ± 10% perf-profile.children.cycles-pp.shmem_fault 1.17 ± 12% +0.4 1.61 ± 12% perf-profile.children.cycles-pp.__list_del_entry_valid 1.17 ± 13% +0.5 1.64 ± 10% perf-profile.children.cycles-pp.__do_fault 0.82 ± 10% +0.7 1.50 ± 9% perf-profile.children.cycles-pp.page_counter_try_charge 1.25 ± 12% +0.7 1.96 ± 12% perf-profile.children.cycles-pp.free_pcppages_bulk 1.48 ± 12% +0.8 2.26 ± 12% perf-profile.children.cycles-pp.free_unref_page_list 1.29 ± 13% +0.8 2.10 ± 12% perf-profile.children.cycles-pp.rmqueue_bulk 1.68 ± 13% +0.9 2.61 ± 12% perf-profile.children.cycles-pp.rmqueue 1.17 ± 10% +0.9 2.12 ± 9% perf-profile.children.cycles-pp.try_charge 1.90 ± 13% +1.0 2.90 ± 12% perf-profile.children.cycles-pp.get_page_from_freelist 2.14 ± 13% +1.1 3.22 ± 12% perf-profile.children.cycles-pp.__alloc_pages_nodemask 2.38 ± 13% +1.2 3.54 ± 12% perf-profile.children.cycles-pp.alloc_pages_vma 2.97 ± 11% +1.3 4.23 ± 11% perf-profile.children.cycles-pp._raw_spin_lock 5.43 ± 13% +2.8 8.27 ± 12% perf-profile.children.cycles-pp.release_pages 5.64 ± 13% +2.9 8.59 ± 12% perf-profile.children.cycles-pp.tlb_flush_mmu 7.62 ± 12% +3.3 10.97 ± 12% perf-profile.children.cycles-pp.zap_pte_range 7.63 ± 12% +3.4 10.98 ± 12% perf-profile.children.cycles-pp.unmap_vmas 7.63 ± 12% +3.4 10.98 ± 12% perf-profile.children.cycles-pp.unmap_page_range 4.92 ± 11% +3.4 8.32 ± 9% perf-profile.children.cycles-pp.pagevec_lru_move_fn 8.81 ± 11% +3.4 12.22 ± 10% perf-profile.children.cycles-pp.alloc_set_pte 8.84 ± 11% +3.4 12.26 ± 10% perf-profile.children.cycles-pp.finish_fault 5.01 ± 11% +3.4 8.45 ± 9% perf-profile.children.cycles-pp.lru_cache_add 8.27 ± 12% +3.7 11.94 ± 12% perf-profile.children.cycles-pp.__vm_munmap 8.27 ± 12% +3.7 11.94 ± 12% perf-profile.children.cycles-pp.__x64_sys_munmap 8.27 ± 12% +3.7 11.94 ± 12% perf-profile.children.cycles-pp.unmap_region 8.27 ± 12% +3.7 11.95 ± 12% perf-profile.children.cycles-pp.__do_munmap 8.37 ± 12% +3.7 12.04 ± 12% perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 8.36 ± 12% +3.7 12.04 ± 12% perf-profile.children.cycles-pp.do_syscall_64 8.27 ± 12% +3.7 11.95 ± 12% perf-profile.children.cycles-pp.__munmap 5.65 ± 12% +5.0 10.64 ± 11% perf-profile.children.cycles-pp._raw_spin_lock_irqsave 6.27 ± 12% +5.7 12.01 ± 11% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath 7.44 ± 15% -6.7 0.74 ± 13% perf-profile.self.cycles-pp.mem_cgroup_charge 6.43 ± 15% -5.0 1.43 ± 13% perf-profile.self.cycles-pp.get_mem_cgroup_from_mm 2.04 ± 12% -1.3 0.73 ± 10% perf-profile.self.cycles-pp.__count_memcg_events 2.29 ± 11% -0.9 1.42 ± 10% perf-profile.self.cycles-pp.__mod_memcg_state 2.30 ± 16% -0.8 1.51 ± 10% perf-profile.self.cycles-pp.native_irq_return_iret 0.28 ± 16% -0.2 0.08 ± 15% perf-profile.self.cycles-pp.uncharge_page 0.06 ± 9% +0.0 0.08 ± 10% perf-profile.self.cycles-pp.__might_sleep 0.07 ± 11% +0.0 0.10 ± 8% perf-profile.self.cycles-pp.up_read 0.06 ± 6% +0.0 0.09 ± 14% perf-profile.self.cycles-pp._raw_spin_lock_irqsave 0.07 ± 7% +0.0 0.09 ± 11% perf-profile.self.cycles-pp.__perf_sw_event 0.07 ± 7% +0.0 0.09 ± 11% perf-profile.self.cycles-pp.__mod_lruvec_state 0.06 ± 9% +0.0 0.08 ± 12% perf-profile.self.cycles-pp.mem_cgroup_page_lruvec 0.04 ± 58% +0.0 0.07 ± 7% perf-profile.self.cycles-pp.vmacache_find 0.08 ± 14% +0.0 0.10 ± 12% perf-profile.self.cycles-pp.alloc_pages_vma 0.07 ± 14% +0.0 0.10 ± 10% perf-profile.self.cycles-pp.unlock_page 0.07 ± 14% +0.0 0.10 ± 10% perf-profile.self.cycles-pp.page_mapping 0.06 ± 11% +0.0 0.09 ± 11% perf-profile.self.cycles-pp.mem_cgroup_update_lru_size 0.10 ± 12% +0.0 0.14 ± 11% perf-profile.self.cycles-pp.exc_page_fault 0.04 ± 59% +0.0 0.08 ± 10% perf-profile.self.cycles-pp.get_task_policy 0.10 ± 11% +0.0 0.13 ± 12% perf-profile.self.cycles-pp.find_lock_entry 0.09 ± 8% +0.0 0.13 ± 14% perf-profile.self.cycles-pp.__mod_zone_page_state 0.08 ± 13% +0.0 0.12 ± 13% perf-profile.self.cycles-pp.perf_swevent_get_recursion_context 0.13 ± 9% +0.0 0.17 ± 13% perf-profile.self.cycles-pp.do_user_addr_fault 0.10 ± 15% +0.0 0.14 ± 11% perf-profile.self.cycles-pp.lru_cache_add 0.12 ± 10% +0.0 0.16 ± 9% perf-profile.self.cycles-pp.alloc_set_pte 0.06 ± 13% +0.0 0.10 ± 14% perf-profile.self.cycles-pp.cgroup_throttle_swaprate 0.01 ±173% +0.0 0.06 ± 9% perf-profile.self.cycles-pp.free_unref_page_prepare 0.12 ± 13% +0.0 0.16 ± 9% perf-profile.self.cycles-pp.___might_sleep 0.14 ± 12% +0.0 0.18 ± 12% perf-profile.self.cycles-pp.___perf_sw_event 0.10 ± 15% +0.0 0.15 ± 10% perf-profile.self.cycles-pp.__list_add_valid 0.14 ± 11% +0.0 0.18 ± 9% perf-profile.self.cycles-pp.__alloc_pages_nodemask 0.01 ±173% +0.0 0.06 ± 11% perf-profile.self.cycles-pp.page_counter_cancel 0.09 ± 7% +0.1 0.14 ± 12% perf-profile.self.cycles-pp.propagate_protected_usage 0.17 ± 9% +0.1 0.22 ± 11% perf-profile.self.cycles-pp.__mod_node_page_state 0.03 ±100% +0.1 0.08 ± 10% perf-profile.self.cycles-pp.memcg_check_events 0.14 ± 11% +0.1 0.19 ± 11% perf-profile.self.cycles-pp.sync_regs 0.18 ± 11% +0.1 0.25 ± 11% perf-profile.self.cycles-pp.do_fault 0.23 ± 15% +0.1 0.31 ± 12% perf-profile.self.cycles-pp.rmqueue 0.22 ± 11% +0.1 0.31 ± 12% perf-profile.self.cycles-pp.handle_mm_fault 0.18 ± 11% +0.1 0.27 ± 10% perf-profile.self.cycles-pp.page_remove_rmap 0.11 ± 12% +0.1 0.20 ± 12% perf-profile.self.cycles-pp.shmem_fault 0.26 ± 12% +0.1 0.36 ± 8% perf-profile.self.cycles-pp.xas_load 0.38 ± 14% +0.1 0.50 ± 10% perf-profile.self.cycles-pp.find_get_entry 0.35 ± 12% +0.1 0.48 ± 9% perf-profile.self.cycles-pp.__handle_mm_fault 0.35 ± 11% +0.1 0.49 ± 11% perf-profile.self.cycles-pp.release_pages 0.43 ± 13% +0.1 0.58 ± 7% perf-profile.self.cycles-pp.__pagevec_lru_add_fn 0.32 ± 12% +0.2 0.48 ± 11% perf-profile.self.cycles-pp.free_pages_and_swap_cache 0.35 ± 10% +0.3 0.62 ± 9% perf-profile.self.cycles-pp.try_charge 0.77 ± 13% +0.3 1.07 ± 11% perf-profile.self.cycles-pp.__irqentry_text_end 0.81 ± 12% +0.3 1.14 ± 12% perf-profile.self.cycles-pp.free_pcppages_bulk 1.16 ± 12% +0.4 1.60 ± 12% perf-profile.self.cycles-pp.__list_del_entry_valid 0.62 ± 8% +0.5 1.10 ± 9% perf-profile.self.cycles-pp.__mod_memcg_lruvec_state 0.74 ± 10% +0.6 1.36 ± 9% perf-profile.self.cycles-pp.page_counter_try_charge 1.47 ± 10% +0.7 2.22 ± 10% perf-profile.self.cycles-pp.zap_pte_range 2.21 ± 12% +0.8 3.06 ± 10% perf-profile.self.cycles-pp.testcase 6.27 ± 12% +5.7 12.01 ± 11% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath will-it-scale.72.processes 1.5e+07 +----------------------------------------------------------------+ 1.45e+07 |-+ O O O O O O | | O O O O O O | 1.4e+07 |-+ O | 1.35e+07 |-+ | | | 1.3e+07 |-+ | 1.25e+07 |-+ | 1.2e+07 |-+ | | | 1.15e+07 |-+ | 1.1e+07 |-+ | | ..+... ..+.... | 1.05e+07 |....+...+....+....+...+....+....+...+.. +.. + | 1e+07 +----------------------------------------------------------------+ will-it-scale.per_process_ops 210000 +------------------------------------------------------------------+ | O | 200000 |-+ O O O O O O O O O O O | | O | 190000 |-+ | | | 180000 |-+ | | | 170000 |-+ | | | 160000 |-+ | | | 150000 |-+ | |....+....+...+....+....+....+....+...+....+....+....+...+ | 140000 +------------------------------------------------------------------+ will-it-scale.workload 1.5e+07 +----------------------------------------------------------------+ 1.45e+07 |-+ O O O O O O | | O O O O O O | 1.4e+07 |-+ O | 1.35e+07 |-+ | | | 1.3e+07 |-+ | 1.25e+07 |-+ | 1.2e+07 |-+ | | | 1.15e+07 |-+ | 1.1e+07 |-+ | | ..+... ..+.... | 1.05e+07 |....+...+....+....+...+....+....+...+.. +.. + | 1e+07 +----------------------------------------------------------------+ [*] bisect-good sample [O] bisect-bad sample *************************************************************************************************** lkp-ivb-2ep1: 48 threads Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz with 112G memory ========================================================================================= compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase/ucode: gcc-9/performance/x86_64-rhel-8.3/process/50%/debian-10.4-x86_64-20200603.cgz/lkp-ivb-2ep1/page_fault2/will-it-scale/0x42e commit: fa02fcd94b ("Merge tag 'media/v5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media") 4df910620b ("mm: memcg: relayout structure mem_cgroup to avoid cache interference") fa02fcd94b0c8dff 4df910620bebb5cfe234af16ac8 ---------------- --------------------------- fail:runs %reproduction fail:runs | | | 5:4 18% 6:4 perf-profile.calltrace.cycles-pp.error_entry.testcase 5:4 18% 6:4 perf-profile.children.cycles-pp.error_entry 4:4 15% 5:4 perf-profile.self.cycles-pp.error_entry %stddev %change %stddev \ | \ 0.96 ± 16% -0.3 0.71 ± 14% perf-profile.calltrace.cycles-pp.page_add_new_anon_rmap.alloc_set_pte.finish_fault.do_fault.__handle_mm_fault 0.96 ± 15% -0.5 0.47 ± 6% perf-profile.children.cycles-pp.__count_memcg_events 1.42 ± 14% -0.4 1.05 ± 10% perf-profile.children.cycles-pp.__mod_memcg_state 0.97 ± 16% -0.3 0.72 ± 14% perf-profile.children.cycles-pp.page_add_new_anon_rmap 0.43 ± 10% -0.2 0.26 ± 5% perf-profile.children.cycles-pp.mem_cgroup_charge_statistics 0.61 ± 12% -0.2 0.44 ± 10% perf-profile.children.cycles-pp.get_mem_cgroup_from_mm 0.06 ± 11% +0.0 0.08 ± 10% perf-profile.children.cycles-pp.worker_thread 0.07 ± 7% +0.1 0.12 ± 32% perf-profile.children.cycles-pp.ret_from_fork 0.07 ± 7% +0.1 0.12 ± 32% perf-profile.children.cycles-pp.kthread 0.52 ± 12% +0.1 0.60 ± 10% perf-profile.children.cycles-pp.xas_load 0.95 ± 14% -0.5 0.47 ± 7% perf-profile.self.cycles-pp.__count_memcg_events 1.40 ± 15% -0.4 1.04 ± 10% perf-profile.self.cycles-pp.__mod_memcg_state 0.60 ± 12% -0.2 0.42 ± 10% perf-profile.self.cycles-pp.get_mem_cgroup_from_mm 0.41 ± 9% -0.1 0.34 ± 12% perf-profile.self.cycles-pp.mem_cgroup_charge 0.29 ± 13% +0.1 0.35 ± 9% perf-profile.self.cycles-pp.handle_mm_fault 0.43 ± 11% +0.1 0.51 ± 9% perf-profile.self.cycles-pp.xas_load 1.06 ± 11% +0.2 1.29 ± 10% perf-profile.self.cycles-pp.free_pages_and_swap_cache 1.67 ± 11% +0.3 1.94 ± 10% perf-profile.self.cycles-pp.free_pcppages_bulk 0.32 ± 25% +0.7 1.02 ± 71% perf-profile.self.cycles-pp.alloc_set_pte 5158061 +2.0% 5263503 will-it-scale.24.processes 214918 +2.0% 219312 will-it-scale.per_process_ops 5158061 +2.0% 5263503 will-it-scale.workload 31247 ± 57% -64.6% 11065 ±169% numa-numastat.node1.other_node 14458 ± 5% -10.2% 12989 ± 7% numa-vmstat.node0.nr_slab_unreclaimable 11137 ± 4% +8.3% 12057 ± 3% numa-vmstat.node1.nr_slab_reclaimable 12240 ± 8% +18.3% 14486 ± 5% numa-vmstat.node1.nr_slab_unreclaimable 2484583 ± 4% +20.9% 3003853 ± 10% sched_debug.cfs_rq:/.min_vruntime.max 1911501 ± 14% +33.8% 2557320 ± 13% sched_debug.cfs_rq:/.spread0.max 3425 ± 11% -11.9% 3018 ± 2% sched_debug.cpu.nr_switches.stddev 1.557e+09 +2.0% 1.589e+09 proc-vmstat.numa_hit 1.557e+09 +2.0% 1.589e+09 proc-vmstat.numa_local 1.557e+09 +2.0% 1.589e+09 proc-vmstat.pgalloc_normal 1.553e+09 +2.0% 1.584e+09 proc-vmstat.pgfault 1.557e+09 +2.0% 1.589e+09 proc-vmstat.pgfree 57832 ± 5% -10.2% 51959 ± 7% numa-meminfo.node0.SUnreclaim 101264 ± 4% -8.8% 92360 ± 5% numa-meminfo.node0.Slab 44549 ± 4% +8.3% 48229 ± 3% numa-meminfo.node1.KReclaimable 44549 ± 4% +8.3% 48229 ± 3% numa-meminfo.node1.SReclaimable 48963 ± 8% +18.3% 57947 ± 5% numa-meminfo.node1.SUnreclaim 93513 ± 6% +13.5% 106178 ± 4% numa-meminfo.node1.Slab 798.75 ± 6% +12.5% 898.75 ± 7% slabinfo.file_lock_cache.active_objs 798.75 ± 6% +12.5% 898.75 ± 7% slabinfo.file_lock_cache.num_objs 2208 ± 2% +14.7% 2533 ± 8% slabinfo.fsnotify_mark_connector.active_objs 2208 ± 2% +14.7% 2533 ± 8% slabinfo.fsnotify_mark_connector.num_objs 1848 ± 4% +9.0% 2014 ± 5% slabinfo.kmalloc-rcl-96.active_objs 1848 ± 4% +9.0% 2014 ± 5% slabinfo.kmalloc-rcl-96.num_objs 0.03 ± 5% +38.6% 0.04 ± 7% perf-sched.sch_delay.avg.ms.futex_wait_queue_me.futex_wait.do_futex.__x64_sys_futex 0.04 ± 7% +29.9% 0.06 ± 12% perf-sched.sch_delay.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown] 0.04 ± 7% +46.9% 0.05 ± 17% perf-sched.sch_delay.max.ms.futex_wait_queue_me.futex_wait.do_futex.__x64_sys_futex 0.80 ±158% -94.0% 0.05 ± 10% perf-sched.sch_delay.max.ms.preempt_schedule_common._cond_resched.stop_one_cpu.__set_cpus_allowed_ptr.sched_setaffinity 0.04 ± 15% +34.5% 0.05 ± 5% perf-sched.sch_delay.max.ms.rcu_gp_kthread.kthread.ret_from_fork 3290 ± 50% -60.9% 1286 ± 33% perf-sched.wait_and_delay.max.ms.smpboot_thread_fn.kthread.ret_from_fork 0.37 ± 48% -44.6% 0.21 ± 5% perf-sched.wait_time.max.ms.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown] 3290 ± 50% -60.9% 1286 ± 33% perf-sched.wait_time.max.ms.smpboot_thread_fn.kthread.ret_from_fork 15251 ± 17% -20.0% 12195 ± 19% softirqs.CPU0.RCU 25042 ± 17% -38.4% 15437 ± 28% softirqs.CPU2.SCHED 23971 ± 11% -19.1% 19385 ± 4% softirqs.CPU21.SCHED 25139 ± 7% -12.0% 22110 ± 10% softirqs.CPU22.SCHED 10852 ± 13% -24.4% 8203 ± 11% softirqs.CPU24.SCHED 20926 ± 20% +44.8% 30292 ± 12% softirqs.CPU26.SCHED 10419 ± 6% -13.7% 8991 softirqs.CPU34.RCU 21252 ± 12% +23.3% 26201 ± 4% softirqs.CPU45.SCHED 4558 ± 35% -39.5% 2760 ± 60% interrupts.CPU0.NMI:Non-maskable_interrupts 4558 ± 35% -39.5% 2760 ± 60% interrupts.CPU0.PMI:Performance_monitoring_interrupts 171.50 ± 17% +28.1% 219.75 ± 12% interrupts.CPU2.RES:Rescheduling_interrupts 150.50 ± 4% +33.9% 201.50 ± 7% interrupts.CPU21.RES:Rescheduling_interrupts 944.00 ± 8% +51.4% 1429 ± 31% interrupts.CPU22.CAL:Function_call_interrupts 143.50 ± 14% +31.9% 189.25 ± 7% interrupts.CPU22.RES:Rescheduling_interrupts 187.75 ± 13% -30.2% 131.00 ± 18% interrupts.CPU26.RES:Rescheduling_interrupts 6516 ± 24% -52.8% 3074 ± 7% interrupts.CPU31.NMI:Non-maskable_interrupts 6516 ± 24% -52.8% 3074 ± 7% interrupts.CPU31.PMI:Performance_monitoring_interrupts 6557 ± 23% -37.7% 4084 ± 26% interrupts.CPU36.NMI:Non-maskable_interrupts 6557 ± 23% -37.7% 4084 ± 26% interrupts.CPU36.PMI:Performance_monitoring_interrupts 819.25 ± 18% +42.9% 1170 ± 15% interrupts.CPU40.CAL:Function_call_interrupts 935.25 ± 5% +12.2% 1049 ± 7% interrupts.CPU42.CAL:Function_call_interrupts 5249 ± 28% -46.8% 2793 ± 41% interrupts.CPU5.NMI:Non-maskable_interrupts 5249 ± 28% -46.8% 2793 ± 41% interrupts.CPU5.PMI:Performance_monitoring_interrupts 1099 ± 4% -15.9% 924.50 ± 6% interrupts.CPU8.CAL:Function_call_interrupts 27.32 -1.2% 27.00 perf-stat.i.MPKI 4.61e+09 +2.1% 4.705e+09 perf-stat.i.branch-instructions 66.43 +0.7 67.16 perf-stat.i.cache-miss-rate% 4.384e+08 +2.0% 4.471e+08 perf-stat.i.cache-misses 6.595e+08 +0.9% 6.655e+08 perf-stat.i.cache-references 2.99 -1.9% 2.93 perf-stat.i.cpi 165.29 -2.0% 162.05 perf-stat.i.cycles-between-cache-misses 8.043e+09 +1.8% 8.187e+09 perf-stat.i.dTLB-loads 5.408e+09 +2.1% 5.524e+09 perf-stat.i.dTLB-stores 5985395 +1.7% 6086521 perf-stat.i.iTLB-load-misses 2.413e+10 +2.1% 2.464e+10 perf-stat.i.instructions 0.34 +1.9% 0.34 perf-stat.i.ipc 403.98 +1.9% 411.70 perf-stat.i.metric.M/sec 5141091 +2.1% 5246543 perf-stat.i.minor-faults 4.65 -0.6 4.07 perf-stat.i.node-load-miss-rate% 13596718 -11.5% 12039508 perf-stat.i.node-load-misses 2.839e+08 +1.7% 2.887e+08 perf-stat.i.node-loads 3.06 -0.5 2.57 perf-stat.i.node-store-miss-rate% 9836492 -14.4% 8417873 perf-stat.i.node-store-misses 3.192e+08 +2.3% 3.266e+08 perf-stat.i.node-stores 5141100 +2.1% 5246556 perf-stat.i.page-faults 27.32 -1.2% 27.00 perf-stat.overall.MPKI 66.48 +0.7 67.19 perf-stat.overall.cache-miss-rate% 2.99 -1.9% 2.93 perf-stat.overall.cpi 164.46 -1.8% 161.48 perf-stat.overall.cycles-between-cache-misses 0.33 +2.0% 0.34 perf-stat.overall.ipc 4.57 -0.6 4.00 perf-stat.overall.node-load-miss-rate% 2.99 -0.5 2.51 perf-stat.overall.node-store-miss-rate% 4.594e+09 +2.1% 4.69e+09 perf-stat.ps.branch-instructions 4.369e+08 +2.0% 4.456e+08 perf-stat.ps.cache-misses 6.572e+08 +0.9% 6.632e+08 perf-stat.ps.cache-references 8.016e+09 +1.8% 8.159e+09 perf-stat.ps.dTLB-loads 5.39e+09 +2.1% 5.505e+09 perf-stat.ps.dTLB-stores 5965014 +1.7% 6065670 perf-stat.ps.iTLB-load-misses 2.405e+10 +2.1% 2.456e+10 perf-stat.ps.instructions 5123634 +2.0% 5228497 perf-stat.ps.minor-faults 13550037 -11.5% 11998434 perf-stat.ps.node-load-misses 2.829e+08 +1.7% 2.877e+08 perf-stat.ps.node-loads 9802170 -14.4% 8389142 perf-stat.ps.node-store-misses 3.182e+08 +2.3% 3.255e+08 perf-stat.ps.node-stores 5123644 +2.0% 5228510 perf-stat.ps.page-faults 7.271e+12 +2.1% 7.426e+12 perf-stat.total.instructions *************************************************************************************************** lkp-hsw-4ex1: 144 threads Intel(R) Xeon(R) CPU E7-8890 v3 @ 2.50GHz with 512G memory ========================================================================================= compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase/ucode: gcc-9/performance/x86_64-rhel-8.3/process/100%/debian-10.4-x86_64-20200603.cgz/lkp-hsw-4ex1/page_fault2/will-it-scale/0x16 commit: fa02fcd94b ("Merge tag 'media/v5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media") 4df910620b ("mm: memcg: relayout structure mem_cgroup to avoid cache interference") fa02fcd94b0c8dff 4df910620bebb5cfe234af16ac8 ---------------- --------------------------- fail:runs %reproduction fail:runs | | | 3:4 5% 3:4 perf-profile.calltrace.cycles-pp.error_entry.testcase 3:4 6% 3:4 perf-profile.children.cycles-pp.error_entry 2:4 5% 3:4 perf-profile.self.cycles-pp.error_entry %stddev %change %stddev \ | \ 10826219 +12.1% 12136182 will-it-scale.144.processes 75181 +12.1% 84278 will-it-scale.per_process_ops 6427 -0.8% 6374 will-it-scale.time.minor_page_faults 10826219 +12.1% 12136182 will-it-scale.workload 10304 ± 3% +12.7% 11616 ± 3% slabinfo.skbuff_head_cache.active_objs 10320 ± 3% +12.6% 11616 ± 3% slabinfo.skbuff_head_cache.num_objs 3952279 ± 6% -10.7% 3528860 ± 5% numa-meminfo.node0.AnonPages.max 3835803 ± 4% -10.6% 3428691 ± 3% numa-meminfo.node1.AnonPages.max 40533 ± 17% -25.1% 30339 ± 10% numa-meminfo.node3.KReclaimable 40533 ± 17% -25.1% 30339 ± 10% numa-meminfo.node3.SReclaimable 52626 ± 15% -21.2% 41452 ± 2% numa-meminfo.node3.SUnreclaim 93160 ± 15% -22.9% 71791 ± 4% numa-meminfo.node3.Slab 22237 ± 2% +3.7% 23055 proc-vmstat.nr_active_anon 22237 ± 2% +3.7% 23055 proc-vmstat.nr_zone_active_anon 3.267e+09 +12.2% 3.664e+09 proc-vmstat.numa_hit 3.267e+09 +12.2% 3.664e+09 proc-vmstat.numa_local 3.268e+09 +12.2% 3.667e+09 proc-vmstat.pgalloc_normal 3.255e+09 +12.2% 3.653e+09 proc-vmstat.pgfault 3.268e+09 +12.2% 3.667e+09 proc-vmstat.pgfree 8.355e+08 +9.7% 9.168e+08 numa-numastat.node0.local_node 8.355e+08 +9.7% 9.168e+08 numa-numastat.node0.numa_hit 8.106e+08 +13.1% 9.166e+08 numa-numastat.node1.local_node 8.106e+08 +13.1% 9.166e+08 numa-numastat.node1.numa_hit 8.092e+08 +13.4% 9.173e+08 numa-numastat.node2.local_node 8.092e+08 +13.4% 9.174e+08 numa-numastat.node2.numa_hit 8.124e+08 +12.8% 9.163e+08 numa-numastat.node3.local_node 8.124e+08 +12.8% 9.163e+08 numa-numastat.node3.numa_hit 4.171e+08 +10.0% 4.587e+08 numa-vmstat.node0.numa_hit 4.171e+08 +10.0% 4.587e+08 numa-vmstat.node0.numa_local 2026 +43.5% 2908 ± 25% numa-vmstat.node1.nr_mapped 4.054e+08 +13.3% 4.593e+08 numa-vmstat.node1.numa_hit 4.053e+08 +13.3% 4.592e+08 numa-vmstat.node1.numa_local 4.052e+08 +13.5% 4.598e+08 numa-vmstat.node2.numa_hit 4.051e+08 +13.5% 4.597e+08 numa-vmstat.node2.numa_local 10134 ± 17% -25.2% 7584 ± 10% numa-vmstat.node3.nr_slab_reclaimable 13156 ± 15% -21.2% 10362 ± 2% numa-vmstat.node3.nr_slab_unreclaimable 4.07e+08 +12.6% 4.582e+08 numa-vmstat.node3.numa_hit 4.068e+08 +12.6% 4.581e+08 numa-vmstat.node3.numa_local 585.75 ± 9% -21.5% 459.71 ± 3% sched_debug.cfs_rq:/.nr_spread_over.max 77.50 ± 8% -17.3% 64.13 ± 6% sched_debug.cfs_rq:/.nr_spread_over.stddev 608344 ± 41% +64.1% 998173 ± 12% sched_debug.cfs_rq:/.spread0.avg 811885 ± 31% +47.7% 1199394 ± 10% sched_debug.cfs_rq:/.spread0.max -554391 -65.3% -192546 sched_debug.cfs_rq:/.spread0.min 2652761 ± 24% -28.7% 1890128 ± 22% sched_debug.cpu.avg_idle.max 233778 ± 17% -21.8% 182852 ± 22% sched_debug.cpu.avg_idle.stddev 21294 ± 37% -37.9% 13231 ± 43% sched_debug.cpu.max_idle_balance_cost.stddev 18116 ± 11% -19.0% 14665 ± 8% sched_debug.cpu.nr_switches.max 2627 ± 3% -11.9% 2315 ± 5% sched_debug.cpu.nr_switches.stddev -21.46 -35.9% -13.75 sched_debug.cpu.nr_uninterruptible.min 14236 ± 14% -21.1% 11229 ± 8% sched_debug.cpu.sched_count.max 2290 ± 3% -13.4% 1983 ± 3% sched_debug.cpu.sched_count.stddev 7163 ± 7% -29.0% 5084 ± 6% sched_debug.cpu.ttwu_count.max 1060 ± 3% -17.4% 876.21 ± 3% sched_debug.cpu.ttwu_count.stddev 799.30 ± 8% -20.7% 634.07 ± 6% sched_debug.cpu.ttwu_local.stddev 56345 ± 20% -32.8% 37847 ± 10% syscalls.sys_close.max 10214940 ±129% -96.2% 386927 ± 29% syscalls.sys_mmap.max 3.599e+09 ± 4% -6.7e+08 2.933e+09 ± 4% syscalls.sys_mmap.noise.100% 3.664e+09 ± 4% -6.5e+08 3.019e+09 ± 4% syscalls.sys_mmap.noise.2% 3.655e+09 ± 4% -6.4e+08 3.011e+09 ± 4% syscalls.sys_mmap.noise.25% 3.664e+09 ± 4% -6.5e+08 3.019e+09 ± 4% syscalls.sys_mmap.noise.5% 3.637e+09 ± 4% -6.5e+08 2.988e+09 ± 4% syscalls.sys_mmap.noise.50% 3.616e+09 ± 4% -6.6e+08 2.96e+09 ± 4% syscalls.sys_mmap.noise.75% 3.562e+08 ± 4% +1.2e+08 4.787e+08 ± 31% syscalls.sys_openat.noise.100% 2119808 ± 57% -60.4% 840502 ± 24% syscalls.sys_write.max 2.979e+09 ± 44% -1.3e+09 1.709e+09 ± 5% syscalls.sys_write.noise.100% 3.002e+09 ± 44% -1.3e+09 1.735e+09 ± 5% syscalls.sys_write.noise.2% 2.999e+09 ± 44% -1.3e+09 1.733e+09 ± 5% syscalls.sys_write.noise.25% 3.002e+09 ± 44% -1.3e+09 1.735e+09 ± 5% syscalls.sys_write.noise.5% 2.995e+09 ± 44% -1.3e+09 1.728e+09 ± 5% syscalls.sys_write.noise.50% 2.989e+09 ± 44% -1.3e+09 1.723e+09 ± 5% syscalls.sys_write.noise.75% 134582 -16.9% 111883 ± 30% interrupts.CAL:Function_call_interrupts 5042 ± 34% +45.0% 7311 ± 18% interrupts.CPU0.NMI:Non-maskable_interrupts 5042 ± 34% +45.0% 7311 ± 18% interrupts.CPU0.PMI:Performance_monitoring_interrupts 276.00 ± 4% +21.8% 336.25 ± 12% interrupts.CPU0.RES:Rescheduling_interrupts 4063 +40.9% 5726 ± 28% interrupts.CPU105.NMI:Non-maskable_interrupts 4063 +40.9% 5726 ± 28% interrupts.CPU105.PMI:Performance_monitoring_interrupts 6629 ± 23% -39.0% 4045 ± 2% interrupts.CPU108.NMI:Non-maskable_interrupts 6629 ± 23% -39.0% 4045 ± 2% interrupts.CPU108.PMI:Performance_monitoring_interrupts 61.25 ± 94% -75.1% 15.25 ± 46% interrupts.CPU116.RES:Rescheduling_interrupts 168.50 ± 13% -43.8% 94.75 ± 18% interrupts.CPU126.RES:Rescheduling_interrupts 1522 ± 29% -58.1% 637.75 ± 30% interrupts.CPU129.CAL:Function_call_interrupts 79.25 ± 41% -60.9% 31.00 ± 31% interrupts.CPU131.RES:Rescheduling_interrupts 5031 ± 33% +53.7% 7733 ± 8% interrupts.CPU132.NMI:Non-maskable_interrupts 5031 ± 33% +53.7% 7733 ± 8% interrupts.CPU132.PMI:Performance_monitoring_interrupts 4054 +52.6% 6187 ± 27% interrupts.CPU137.NMI:Non-maskable_interrupts 4054 +52.6% 6187 ± 27% interrupts.CPU137.PMI:Performance_monitoring_interrupts 8008 -21.8% 6263 ± 21% interrupts.CPU21.NMI:Non-maskable_interrupts 8008 -21.8% 6263 ± 21% interrupts.CPU21.PMI:Performance_monitoring_interrupts 5988 ± 18% -25.2% 4479 ± 17% interrupts.CPU25.NMI:Non-maskable_interrupts 5988 ± 18% -25.2% 4479 ± 17% interrupts.CPU25.PMI:Performance_monitoring_interrupts 167.00 +13.8% 190.00 ± 3% interrupts.CPU30.RES:Rescheduling_interrupts 170.25 ± 8% +16.6% 198.50 ± 10% interrupts.CPU31.RES:Rescheduling_interrupts 908.75 ± 14% -31.4% 623.50 ± 45% interrupts.CPU39.CAL:Function_call_interrupts 4024 +44.1% 5799 ± 27% interrupts.CPU45.NMI:Non-maskable_interrupts 4024 +44.1% 5799 ± 27% interrupts.CPU45.PMI:Performance_monitoring_interrupts 4612 ± 21% +52.6% 7039 ± 23% interrupts.CPU54.NMI:Non-maskable_interrupts 4612 ± 21% +52.6% 7039 ± 23% interrupts.CPU54.PMI:Performance_monitoring_interrupts 175.75 ± 14% -43.5% 99.25 ± 27% interrupts.CPU54.RES:Rescheduling_interrupts 304.25 ± 82% -65.6% 104.75 ± 25% interrupts.CPU55.RES:Rescheduling_interrupts 6694 ± 19% -30.1% 4676 ± 23% interrupts.CPU58.NMI:Non-maskable_interrupts 6694 ± 19% -30.1% 4676 ± 23% interrupts.CPU58.PMI:Performance_monitoring_interrupts 1982 ± 26% -46.9% 1053 ± 19% interrupts.CPU73.CAL:Function_call_interrupts 5503 ± 27% -26.9% 4022 interrupts.CPU80.NMI:Non-maskable_interrupts 5503 ± 27% -26.9% 4022 interrupts.CPU80.PMI:Performance_monitoring_interrupts 6543 ± 23% -23.3% 5020 ± 34% interrupts.CPU88.NMI:Non-maskable_interrupts 6543 ± 23% -23.3% 5020 ± 34% interrupts.CPU88.PMI:Performance_monitoring_interrupts 6059 ± 33% -33.8% 4011 interrupts.CPU90.NMI:Non-maskable_interrupts 6059 ± 33% -33.8% 4011 interrupts.CPU90.PMI:Performance_monitoring_interrupts 16073 +14.0% 18329 ± 4% interrupts.RES:Rescheduling_interrupts 2.276e+10 +5.6% 2.403e+10 perf-stat.i.branch-instructions 57785027 +9.2% 63125578 perf-stat.i.branch-misses 33.59 +1.3 34.86 perf-stat.i.cache-miss-rate% 2.99e+08 +11.5% 3.332e+08 perf-stat.i.cache-misses 8.857e+08 +7.5% 9.52e+08 perf-stat.i.cache-references 4.00 -6.1% 3.76 perf-stat.i.cpi 1425 -10.3% 1277 perf-stat.i.cycles-between-cache-misses 38840111 ± 19% +45.7% 56590709 ± 18% perf-stat.i.dTLB-load-misses 2.805e+10 +6.9% 2.999e+10 perf-stat.i.dTLB-loads 86765075 ± 2% +17.0% 1.015e+08 perf-stat.i.dTLB-store-misses 9.928e+09 +12.1% 1.113e+10 perf-stat.i.dTLB-stores 32364704 +12.3% 36335103 perf-stat.i.iTLB-load-misses 1.029e+11 +6.3% 1.094e+11 perf-stat.i.instructions 3187 -5.5% 3013 perf-stat.i.instructions-per-iTLB-miss 0.25 +6.2% 0.27 perf-stat.i.ipc 429.12 +7.4% 460.92 perf-stat.i.metric.M/sec 10735651 +12.3% 12059205 perf-stat.i.minor-faults 5.53 -1.9 3.59 perf-stat.i.node-load-miss-rate% 12242331 -30.4% 8517490 perf-stat.i.node-load-misses 2.309e+08 +12.7% 2.603e+08 perf-stat.i.node-loads 14.81 -0.7 14.14 perf-stat.i.node-store-miss-rate% 8057655 +10.5% 8902557 perf-stat.i.node-store-misses 46809246 +16.6% 54566564 perf-stat.i.node-stores 10735652 +12.3% 12059206 perf-stat.i.page-faults 0.25 +0.0 0.26 perf-stat.overall.branch-miss-rate% 33.79 +1.2 35.02 perf-stat.overall.cache-miss-rate% 4.00 -6.0% 3.76 perf-stat.overall.cpi 1375 -10.3% 1233 perf-stat.overall.cycles-between-cache-misses 3182 -5.3% 3012 perf-stat.overall.instructions-per-iTLB-miss 0.25 +6.3% 0.27 perf-stat.overall.ipc 5.01 -1.9 3.16 perf-stat.overall.node-load-miss-rate% 14.69 -0.7 14.03 perf-stat.overall.node-store-miss-rate% 2874609 -5.2% 2726260 perf-stat.overall.path-length 2.266e+10 +5.5% 2.391e+10 perf-stat.ps.branch-instructions 57209629 +9.3% 62547538 perf-stat.ps.branch-misses 2.977e+08 +11.4% 3.318e+08 perf-stat.ps.cache-misses 8.813e+08 +7.5% 9.475e+08 perf-stat.ps.cache-references 38567680 ± 19% +45.8% 56225398 ± 18% perf-stat.ps.dTLB-load-misses 2.792e+10 +6.8% 2.983e+10 perf-stat.ps.dTLB-loads 86358963 ± 2% +17.0% 1.01e+08 perf-stat.ps.dTLB-store-misses 9.868e+09 +12.1% 1.106e+10 perf-stat.ps.dTLB-stores 32193889 +12.3% 36145969 perf-stat.ps.iTLB-load-misses 1.025e+11 +6.3% 1.089e+11 perf-stat.ps.instructions 10680325 +12.3% 11997386 perf-stat.ps.minor-faults 12145565 -30.4% 8458562 perf-stat.ps.node-load-misses 2.302e+08 +12.7% 2.593e+08 perf-stat.ps.node-loads 8004247 +10.6% 8849146 perf-stat.ps.node-store-misses 46470686 +16.7% 54225133 perf-stat.ps.node-stores 10680326 +12.3% 11997387 perf-stat.ps.page-faults 3.112e+13 +6.3% 3.308e+13 perf-stat.total.instructions 41.00 -6.5 34.52 ± 5% perf-profile.calltrace.cycles-pp.alloc_set_pte.finish_fault.do_fault.__handle_mm_fault.handle_mm_fault 41.07 -6.5 34.60 ± 5% perf-profile.calltrace.cycles-pp.finish_fault.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 38.25 -6.1 32.14 ± 6% perf-profile.calltrace.cycles-pp.pagevec_lru_move_fn.lru_cache_add.alloc_set_pte.finish_fault.do_fault 38.38 -6.1 32.28 ± 6% perf-profile.calltrace.cycles-pp.lru_cache_add.alloc_set_pte.finish_fault.do_fault.__handle_mm_fault 36.53 -6.0 30.50 ± 6% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.pagevec_lru_move_fn.lru_cache_add.alloc_set_pte 36.57 -6.0 30.54 ± 6% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.pagevec_lru_move_fn.lru_cache_add.alloc_set_pte.finish_fault 4.88 -2.8 2.11 ± 3% perf-profile.calltrace.cycles-pp.mem_cgroup_charge.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 64.74 -1.7 63.03 perf-profile.calltrace.cycles-pp.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault.testcase 65.63 -1.6 63.99 perf-profile.calltrace.cycles-pp.do_user_addr_fault.exc_page_fault.asm_exc_page_fault.testcase 65.78 -1.6 64.15 perf-profile.calltrace.cycles-pp.exc_page_fault.asm_exc_page_fault.testcase 72.33 -1.5 70.84 perf-profile.calltrace.cycles-pp.testcase 71.88 -1.3 70.54 perf-profile.calltrace.cycles-pp.asm_exc_page_fault.testcase 63.02 -1.3 61.72 perf-profile.calltrace.cycles-pp.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault 63.45 -1.3 62.17 perf-profile.calltrace.cycles-pp.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault 1.83 -1.2 0.58 perf-profile.calltrace.cycles-pp.get_mem_cgroup_from_mm.mem_cgroup_charge.do_fault.__handle_mm_fault.handle_mm_fault 1.17 ± 2% -0.4 0.73 perf-profile.calltrace.cycles-pp.page_add_new_anon_rmap.alloc_set_pte.finish_fault.do_fault.__handle_mm_fault 0.75 ± 4% -0.2 0.58 ± 3% perf-profile.calltrace.cycles-pp.page_remove_rmap.zap_pte_range.unmap_page_range.unmap_vmas.unmap_region 2.23 -0.1 2.15 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.release_pages.tlb_flush_mmu.tlb_finish_mmu.unmap_region 2.22 -0.1 2.15 ± 2% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.release_pages.tlb_flush_mmu.tlb_finish_mmu 1.21 -0.1 1.14 ± 2% perf-profile.calltrace.cycles-pp.__pagevec_lru_add_fn.pagevec_lru_move_fn.lru_cache_add.alloc_set_pte.finish_fault 0.77 +0.0 0.80 perf-profile.calltrace.cycles-pp.__irqentry_text_end.testcase 0.81 +0.1 0.87 ± 3% perf-profile.calltrace.cycles-pp.try_charge.mem_cgroup_charge.do_fault.__handle_mm_fault.handle_mm_fault 1.28 +0.1 1.37 ± 2% perf-profile.calltrace.cycles-pp.find_lock_entry.shmem_getpage_gfp.shmem_fault.__do_fault.do_fault 1.10 +0.1 1.19 ± 2% perf-profile.calltrace.cycles-pp.find_get_entry.find_lock_entry.shmem_getpage_gfp.shmem_fault.__do_fault 1.45 +0.1 1.56 ± 2% perf-profile.calltrace.cycles-pp.shmem_getpage_gfp.shmem_fault.__do_fault.do_fault.__handle_mm_fault 1.64 +0.1 1.77 ± 2% perf-profile.calltrace.cycles-pp.shmem_fault.__do_fault.do_fault.__handle_mm_fault.handle_mm_fault 1.73 +0.1 1.88 perf-profile.calltrace.cycles-pp.__do_fault.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 2.70 +0.1 2.85 perf-profile.calltrace.cycles-pp.release_pages.tlb_flush_mmu.tlb_finish_mmu.unmap_region.__do_munmap 0.78 +0.2 0.94 ± 4% perf-profile.calltrace.cycles-pp.__list_del_entry_valid.rmqueue_bulk.rmqueue.get_page_from_freelist.__alloc_pages_nodemask 2.74 +0.2 2.90 perf-profile.calltrace.cycles-pp.tlb_flush_mmu.tlb_finish_mmu.unmap_region.__do_munmap.__vm_munmap 2.74 +0.2 2.90 perf-profile.calltrace.cycles-pp.tlb_finish_mmu.unmap_region.__do_munmap.__vm_munmap.__x64_sys_munmap 0.38 ± 57% +0.2 0.54 ± 4% perf-profile.calltrace.cycles-pp.page_counter_try_charge.try_charge.mem_cgroup_charge.do_fault.__handle_mm_fault 11.34 +0.6 11.92 perf-profile.calltrace.cycles-pp.copy_page.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 0.76 ± 3% +1.1 1.90 ± 11% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.free_pcppages_bulk.free_unref_page_list.release_pages 0.77 ± 4% +1.1 1.91 ± 11% perf-profile.calltrace.cycles-pp._raw_spin_lock.free_pcppages_bulk.free_unref_page_list.release_pages.tlb_flush_mmu 21.43 +1.2 22.63 perf-profile.calltrace.cycles-pp.release_pages.tlb_flush_mmu.zap_pte_range.unmap_page_range.unmap_vmas 23.92 +1.2 25.14 perf-profile.calltrace.cycles-pp.zap_pte_range.unmap_page_range.unmap_vmas.unmap_region.__do_munmap 23.93 +1.2 25.15 perf-profile.calltrace.cycles-pp.unmap_vmas.unmap_region.__do_munmap.__vm_munmap.__x64_sys_munmap 23.93 +1.2 25.15 perf-profile.calltrace.cycles-pp.unmap_page_range.unmap_vmas.unmap_region.__do_munmap.__vm_munmap 21.76 +1.2 22.99 perf-profile.calltrace.cycles-pp.tlb_flush_mmu.zap_pte_range.unmap_page_range.unmap_vmas.unmap_region 1.88 ± 2% +1.3 3.16 ± 7% perf-profile.calltrace.cycles-pp.free_pcppages_bulk.free_unref_page_list.release_pages.tlb_flush_mmu.zap_pte_range 2.15 +1.3 3.46 ± 7% perf-profile.calltrace.cycles-pp.free_unref_page_list.release_pages.tlb_flush_mmu.zap_pte_range.unmap_page_range 26.70 +1.4 28.07 perf-profile.calltrace.cycles-pp.unmap_region.__do_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64 26.70 +1.4 28.07 perf-profile.calltrace.cycles-pp.__do_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe 26.72 +1.4 28.09 perf-profile.calltrace.cycles-pp.__munmap 26.70 +1.4 28.07 perf-profile.calltrace.cycles-pp.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 26.70 +1.4 28.07 perf-profile.calltrace.cycles-pp.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 26.72 +1.4 28.09 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__munmap 26.70 +1.4 28.08 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 1.21 ± 9% +6.8 8.03 ± 18% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.rmqueue_bulk.rmqueue.get_page_from_freelist 1.21 ± 8% +6.8 8.04 ± 18% perf-profile.calltrace.cycles-pp._raw_spin_lock.rmqueue_bulk.rmqueue.get_page_from_freelist.__alloc_pages_nodemask 2.13 ± 4% +7.0 9.12 ± 16% perf-profile.calltrace.cycles-pp.rmqueue_bulk.rmqueue.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_vma 2.58 ± 3% +7.1 9.65 ± 16% perf-profile.calltrace.cycles-pp.rmqueue.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_vma.do_fault 2.77 ± 3% +7.1 9.84 ± 15% perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_vma.do_fault.__handle_mm_fault 3.11 ± 3% +7.1 10.21 ± 15% perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.alloc_pages_vma.do_fault.__handle_mm_fault.handle_mm_fault 3.45 ± 3% +7.1 10.55 ± 14% perf-profile.calltrace.cycles-pp.alloc_pages_vma.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 41.03 -6.5 34.56 ± 5% perf-profile.children.cycles-pp.alloc_set_pte 41.08 -6.5 34.61 ± 5% perf-profile.children.cycles-pp.finish_fault 56.64 -6.1 50.52 ± 3% perf-profile.children.cycles-pp._raw_spin_lock_irqsave 38.30 -6.1 32.18 ± 6% perf-profile.children.cycles-pp.pagevec_lru_move_fn 38.39 -6.1 32.30 ± 6% perf-profile.children.cycles-pp.lru_cache_add 4.90 -2.8 2.12 ± 3% perf-profile.children.cycles-pp.mem_cgroup_charge 64.76 -1.7 63.05 perf-profile.children.cycles-pp.handle_mm_fault 65.67 -1.6 64.03 perf-profile.children.cycles-pp.do_user_addr_fault 65.80 -1.6 64.17 perf-profile.children.cycles-pp.exc_page_fault 70.09 -1.5 68.63 perf-profile.children.cycles-pp.asm_exc_page_fault 73.11 -1.4 71.74 perf-profile.children.cycles-pp.testcase 63.05 -1.3 61.74 perf-profile.children.cycles-pp.do_fault 63.47 -1.3 62.19 perf-profile.children.cycles-pp.__handle_mm_fault 1.84 -1.2 0.59 perf-profile.children.cycles-pp.get_mem_cgroup_from_mm 1.18 ± 4% -0.8 0.37 ± 4% perf-profile.children.cycles-pp.__count_memcg_events 1.53 ± 2% -0.8 0.72 ± 5% perf-profile.children.cycles-pp.__mod_memcg_state 2.07 ± 2% -0.7 1.33 ± 4% perf-profile.children.cycles-pp.__mod_memcg_lruvec_state 1.17 ± 2% -0.4 0.73 ± 2% perf-profile.children.cycles-pp.page_add_new_anon_rmap 0.56 ± 4% -0.3 0.23 ± 4% perf-profile.children.cycles-pp.mem_cgroup_charge_statistics 0.75 ± 4% -0.2 0.59 ± 3% perf-profile.children.cycles-pp.page_remove_rmap 1.22 -0.1 1.16 ± 2% perf-profile.children.cycles-pp.__pagevec_lru_add_fn 0.13 ± 3% -0.1 0.07 ± 5% perf-profile.children.cycles-pp.uncharge_page 0.29 -0.1 0.23 perf-profile.children.cycles-pp.mem_cgroup_uncharge_list 0.30 ± 3% -0.0 0.27 ± 4% perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore 0.05 +0.0 0.06 perf-profile.children.cycles-pp.rcu_all_qs 0.05 ± 8% +0.0 0.07 ± 7% perf-profile.children.cycles-pp.perf_exclude_event 0.05 +0.0 0.06 ± 6% perf-profile.children.cycles-pp.pte_alloc_one 0.14 ± 3% +0.0 0.16 ± 2% perf-profile.children.cycles-pp.scheduler_tick 0.07 ± 5% +0.0 0.09 ± 4% perf-profile.children.cycles-pp.mem_cgroup_update_lru_size 0.19 ± 3% +0.0 0.21 ± 2% perf-profile.children.cycles-pp.update_process_times 0.17 ± 2% +0.0 0.19 ± 3% perf-profile.children.cycles-pp.__mod_zone_page_state 0.12 ± 5% +0.0 0.14 ± 3% perf-profile.children.cycles-pp.cgroup_throttle_swaprate 0.21 ± 4% +0.0 0.23 ± 2% perf-profile.children.cycles-pp.tick_sched_timer 0.19 ± 2% +0.0 0.21 ± 2% perf-profile.children.cycles-pp.tick_sched_handle 0.27 +0.0 0.29 ± 2% perf-profile.children.cycles-pp.__hrtimer_run_queues 0.28 ± 2% +0.0 0.30 perf-profile.children.cycles-pp.__mod_node_page_state 0.78 +0.0 0.80 perf-profile.children.cycles-pp.__irqentry_text_end 0.36 ± 2% +0.0 0.39 perf-profile.children.cycles-pp.__mod_lruvec_state 0.35 ± 2% +0.0 0.38 ± 4% perf-profile.children.cycles-pp.free_pages_and_swap_cache 0.42 +0.0 0.46 perf-profile.children.cycles-pp.___perf_sw_event 0.00 +0.1 0.05 perf-profile.children.cycles-pp.__tlb_remove_page_size 0.82 +0.1 0.87 ± 4% perf-profile.children.cycles-pp.try_charge 0.61 +0.1 0.68 perf-profile.children.cycles-pp.__perf_sw_event 2.40 +0.1 2.46 perf-profile.children.cycles-pp.irqentry_exit_to_user_mode 1.11 +0.1 1.19 ± 2% perf-profile.children.cycles-pp.find_get_entry 1.30 +0.1 1.39 ± 2% perf-profile.children.cycles-pp.find_lock_entry 1.47 +0.1 1.58 ± 2% perf-profile.children.cycles-pp.shmem_getpage_gfp 1.64 +0.1 1.77 perf-profile.children.cycles-pp.shmem_fault 1.74 +0.1 1.88 perf-profile.children.cycles-pp.__do_fault 2.75 +0.2 2.91 perf-profile.children.cycles-pp.tlb_finish_mmu 1.54 ± 2% +0.2 1.76 ± 2% perf-profile.children.cycles-pp.__list_del_entry_valid 11.37 +0.6 11.96 perf-profile.children.cycles-pp.copy_page 23.93 +1.2 25.15 perf-profile.children.cycles-pp.unmap_vmas 23.93 +1.2 25.15 perf-profile.children.cycles-pp.unmap_page_range 23.93 +1.2 25.15 perf-profile.children.cycles-pp.zap_pte_range 24.27 +1.4 25.63 perf-profile.children.cycles-pp.release_pages 26.71 +1.4 28.08 perf-profile.children.cycles-pp.__do_munmap 26.71 +1.4 28.08 perf-profile.children.cycles-pp.unmap_region 26.80 +1.4 28.17 perf-profile.children.cycles-pp.do_syscall_64 26.82 +1.4 28.19 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 26.72 +1.4 28.09 perf-profile.children.cycles-pp.__munmap 26.70 +1.4 28.08 perf-profile.children.cycles-pp.__vm_munmap 26.70 +1.4 28.08 perf-profile.children.cycles-pp.__x64_sys_munmap 24.51 +1.4 25.90 perf-profile.children.cycles-pp.tlb_flush_mmu 2.14 +1.5 3.65 ± 7% perf-profile.children.cycles-pp.free_pcppages_bulk 2.45 +1.6 4.01 ± 7% perf-profile.children.cycles-pp.free_unref_page_list 58.69 +2.1 60.75 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath 2.14 ± 4% +7.0 9.16 ± 16% perf-profile.children.cycles-pp.rmqueue_bulk 2.61 ± 4% +7.1 9.70 ± 16% perf-profile.children.cycles-pp.rmqueue 2.82 ± 3% +7.1 9.92 ± 15% perf-profile.children.cycles-pp.get_page_from_freelist 3.46 ± 3% +7.1 10.57 ± 14% perf-profile.children.cycles-pp.alloc_pages_vma 3.19 ± 3% +7.1 10.30 ± 15% perf-profile.children.cycles-pp.__alloc_pages_nodemask 3.29 ± 4% +8.2 11.52 ± 13% perf-profile.children.cycles-pp._raw_spin_lock 1.82 -1.2 0.57 perf-profile.self.cycles-pp.get_mem_cgroup_from_mm 1.60 ± 3% -1.2 0.37 ± 4% perf-profile.self.cycles-pp.mem_cgroup_charge 1.18 ± 3% -0.8 0.36 ± 4% perf-profile.self.cycles-pp.__count_memcg_events 1.52 ± 3% -0.8 0.71 ± 5% perf-profile.self.cycles-pp.__mod_memcg_state 0.13 ± 3% -0.1 0.07 ± 5% perf-profile.self.cycles-pp.uncharge_page 0.10 +0.0 0.11 ± 3% perf-profile.self.cycles-pp.perf_swevent_get_recursion_context 0.07 ± 6% +0.0 0.08 perf-profile.self.cycles-pp.mem_cgroup_update_lru_size 0.25 +0.0 0.26 perf-profile.self.cycles-pp.rmqueue 0.12 ± 4% +0.0 0.14 perf-profile.self.cycles-pp.lru_cache_add 0.18 ± 2% +0.0 0.20 ± 2% perf-profile.self.cycles-pp.shmem_fault 0.16 +0.0 0.18 ± 2% perf-profile.self.cycles-pp.shmem_getpage_gfp 0.10 +0.0 0.12 ± 5% perf-profile.self.cycles-pp.free_unref_page_list 0.28 +0.0 0.30 ± 3% perf-profile.self.cycles-pp.handle_mm_fault 0.16 +0.0 0.18 ± 2% perf-profile.self.cycles-pp.page_remove_rmap 0.41 +0.0 0.44 ± 2% perf-profile.self.cycles-pp.__handle_mm_fault 0.30 ± 2% +0.0 0.33 ± 3% perf-profile.self.cycles-pp.try_charge 0.78 +0.0 0.80 perf-profile.self.cycles-pp.__irqentry_text_end 0.26 ± 3% +0.0 0.29 perf-profile.self.cycles-pp.__mod_node_page_state 0.31 ± 2% +0.0 0.34 perf-profile.self.cycles-pp.___perf_sw_event 0.27 ± 3% +0.0 0.30 ± 3% perf-profile.self.cycles-pp.alloc_set_pte 0.34 ± 2% +0.0 0.38 ± 3% perf-profile.self.cycles-pp.free_pages_and_swap_cache 0.38 +0.0 0.41 ± 2% perf-profile.self.cycles-pp.release_pages 0.47 +0.0 0.52 ± 4% perf-profile.self.cycles-pp.page_counter_try_charge 0.74 +0.0 0.78 perf-profile.self.cycles-pp.find_get_entry 0.42 +0.0 0.47 ± 2% perf-profile.self.cycles-pp.__pagevec_lru_add_fn 2.30 +0.1 2.37 perf-profile.self.cycles-pp.irqentry_exit_to_user_mode 0.31 ± 22% +0.1 0.38 ± 21% perf-profile.self.cycles-pp.do_fault 0.54 +0.1 0.62 ± 3% perf-profile.self.cycles-pp.__mod_memcg_lruvec_state 2.10 +0.1 2.23 perf-profile.self.cycles-pp.testcase 1.02 +0.1 1.14 ± 3% perf-profile.self.cycles-pp.free_pcppages_bulk 1.30 +0.1 1.43 ± 3% perf-profile.self.cycles-pp.zap_pte_range 1.53 ± 2% +0.2 1.75 ± 2% perf-profile.self.cycles-pp.__list_del_entry_valid 11.31 +0.6 11.90 perf-profile.self.cycles-pp.copy_page 58.69 +2.1 60.75 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath 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, Oliver Sang

9 months

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[locking/qspinlock] 0e8d8f4f12: fsmark.files_per_sec 213.9% improvement

by kernel test robot

Greeting, FYI, we noticed a 213.9% improvement of fsmark.files_per_sec due to commit: commit: 0e8d8f4f1214cfbac219d6917b5f6460f818bb7c ("[PATCH v13 3/6] locking/qspinlock: Introduce CNA into the slow path of qspinlock") url: https://github.com/0day-ci/linux/commits/Alex-Kogan/Add-NUMA-awareness-to... base: https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git cb262935a166bdef0ccfe6e2adffa00c0f2d038a in testcase: fsmark on test machine: 192 threads Intel(R) Xeon(R) Platinum 9242 CPU @ 2.30GHz with 192G memory with following parameters: iterations: 1x nr_threads: 64t disk: 1BRD_48G fs: btrfs filesize: 4M test_size: 24G sync_method: NoSync cpufreq_governor: performance ucode: 0x5003003 test-description: The fsmark is a file system benchmark to test synchronous write workloads, for example, mail servers workload. test-url: https://sourceforge.net/projects/fsmark/ In addition to that, the commit also has significant impact on the following tests: +------------------+------------------------------------------------------------------------+ | testcase: change | reaim: reaim.jobs_per_min 96.1% improvement | | test machine | 144 threads Intel(R) Xeon(R) Gold 5318H CPU @ 2.50GHz with 128G memory | | test parameters | cpufreq_governor=performance | | | nr_task=100% | | | runtime=300s | | | test=new_fserver | | | ucode=0x5003003 | +------------------+------------------------------------------------------------------------+ 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/disk/filesize/fs/iterations/kconfig/nr_threads/rootfs/sync_method/tbox_group/test_size/testcase/ucode: gcc-9/performance/1BRD_48G/4M/btrfs/1x/x86_64-rhel-8.3/64t/debian-10.4-x86_64-20200603.cgz/NoSync/lkp-csl-2ap2/24G/fsmark/0x5003003 commit: cb45bab007 ("locking/qspinlock: Refactor the qspinlock slow path") 0e8d8f4f12 ("locking/qspinlock: Introduce CNA into the slow path of qspinlock") cb45bab007ff0cfc 0e8d8f4f1214cfbac219d6917b5 ---------------- --------------------------- %stddev %change %stddev \ | \ 1180 ± 2% +213.9% 3706 ± 11% fsmark.files_per_sec 773.00 ± 4% -30.2% 539.75 ± 7% fsmark.time.percent_of_cpu_this_job_got 137.19 ± 3% -28.5% 98.13 ± 8% fsmark.time.system_time 48917 ± 4% -9.0% 44537 ± 8% meminfo.AnonHugePages 4.83 ± 4% -1.0 3.83 ± 5% mpstat.cpu.all.sys% 93.48 +1.1% 94.51 iostat.cpu.idle 5.76 ± 2% -16.9% 4.79 ± 6% iostat.cpu.system 93.00 +1.1% 94.00 vmstat.cpu.id 20606 ± 5% +97.4% 40682 ± 34% vmstat.system.cs 4237881 ± 29% +321.3% 17854499 ±106% cpuidle.C1.time 44169 ± 32% +396.5% 219318 ±113% cpuidle.C1.usage 72208 ± 6% +191.8% 210719 ± 39% cpuidle.POLL.time 36708 ± 9% +306.0% 149034 ± 48% cpuidle.POLL.usage 2157 ± 2% +13.8% 2454 ± 6% slabinfo.biovec-max.active_objs 2271 ± 2% +12.8% 2561 ± 5% slabinfo.biovec-max.num_objs 6624 +13.4% 7512 ± 5% slabinfo.btrfs_delayed_node.active_objs 6768 +12.1% 7589 ± 5% slabinfo.btrfs_delayed_node.num_objs 47815 ± 86% -89.2% 5149 ± 6% sched_debug.cfs_rq:/.load.stddev 142.69 ± 15% +66.8% 237.99 ± 13% sched_debug.cfs_rq:/.load_avg.avg 1598 ± 30% +92.4% 3075 ± 20% sched_debug.cfs_rq:/.load_avg.max 383.38 ± 21% +90.4% 730.10 ± 13% sched_debug.cfs_rq:/.load_avg.stddev 37712 ± 16% -27.1% 27508 ± 16% sched_debug.cfs_rq:/.min_vruntime.avg 58.89 ± 49% +57.8% 92.96 ± 5% sched_debug.cfs_rq:/.util_est_enqueued.stddev 1901 ± 4% -8.3% 1743 ± 3% proc-vmstat.nr_active_anon 5055884 +3.2% 5219972 proc-vmstat.nr_file_pages 4788961 ± 2% +3.4% 4953360 proc-vmstat.nr_inactive_file 36576 ± 2% -4.1% 35069 proc-vmstat.nr_kernel_stack 9756 -1.6% 9601 proc-vmstat.nr_mapped 5205 ± 2% -5.1% 4939 proc-vmstat.nr_shmem 1901 ± 4% -8.3% 1743 ± 3% proc-vmstat.nr_zone_active_anon 4788961 ± 2% +3.4% 4953360 proc-vmstat.nr_zone_inactive_file 4864 ± 5% -8.2% 4465 proc-vmstat.pgactivate 2.507e+09 -8.7% 2.29e+09 perf-stat.i.branch-instructions 71942409 -5.3% 68125925 ± 2% perf-stat.i.cache-misses 4.372e+10 -18.5% 3.565e+10 ± 3% perf-stat.i.cpu-cycles 1.231e+10 -7.5% 1.138e+10 perf-stat.i.instructions 2515 ± 8% -11.4% 2228 ± 5% perf-stat.i.instructions-per-iTLB-miss 0.23 -17.3% 0.19 ± 3% perf-stat.i.metric.GHz 0.71 ± 19% +37.6% 0.97 ± 17% perf-stat.i.metric.K/sec 35.43 -6.2% 33.24 ± 2% perf-stat.i.metric.M/sec 3.58 -8.5% 3.28 perf-stat.overall.cpi 612.62 -9.0% 557.36 ± 3% perf-stat.overall.cycles-between-cache-misses 2610 ± 6% -11.9% 2299 ± 4% perf-stat.overall.instructions-per-iTLB-miss 0.28 +9.3% 0.31 perf-stat.overall.ipc 2.39e+09 ± 2% -6.3% 2.239e+09 perf-stat.ps.branch-instructions 68534728 ± 2% -4.6% 65359103 ± 2% perf-stat.ps.cache-misses 4.199e+10 ± 2% -13.3% 3.641e+10 perf-stat.ps.cpu-cycles 1.173e+10 ± 2% -5.3% 1.112e+10 perf-stat.ps.instructions 226946 ± 18% +44.8% 328685 ± 19% numa-meminfo.node0.AnonPages 249710 ± 18% +41.9% 354296 ± 20% numa-meminfo.node0.AnonPages.max 233745 ± 17% +42.0% 331984 ± 20% numa-meminfo.node0.Inactive(anon) 8680 ± 73% +135.9% 20474 ± 28% numa-meminfo.node0.PageTables 250653 ± 2% +6.8% 267784 ± 5% numa-meminfo.node0.Unevictable 2890241 ± 9% -58.3% 1206212 ± 10% numa-meminfo.node0.Writeback 338312 ± 83% +111.9% 716979 ± 64% numa-meminfo.node1.Dirty 8444 ± 82% +169.8% 22785 ± 37% numa-meminfo.node2.AnonHugePages 236489 ± 16% +142.5% 573382 ± 36% numa-meminfo.node2.Dirty 2484617 ± 13% +117.6% 5406277 ± 50% numa-meminfo.node2.FilePages 2459002 ± 19% +115.1% 5290461 ± 51% numa-meminfo.node2.Inactive 2216704 ± 16% +131.7% 5135596 ± 53% numa-meminfo.node2.Inactive(file) 871702 ± 16% +52.8% 1331684 ± 6% numa-meminfo.node2.Writeback 3888 ± 16% -24.5% 2937 ± 6% numa-meminfo.node3.Active(anon) 57796 ± 19% -49.7% 29078 ± 34% numa-meminfo.node3.KReclaimable 57796 ± 19% -49.7% 29078 ± 34% numa-meminfo.node3.SReclaimable 130240 ± 7% -30.1% 91037 ± 15% numa-meminfo.node3.Slab 56616 ± 18% +45.2% 82199 ± 19% numa-vmstat.node0.nr_anon_pages 58314 ± 17% +42.4% 83024 ± 20% numa-vmstat.node0.nr_inactive_anon 2172 ± 73% +135.7% 5122 ± 28% numa-vmstat.node0.nr_page_table_pages 62662 ± 2% +6.8% 66945 ± 5% numa-vmstat.node0.nr_unevictable 738434 ± 9% -59.3% 300391 ± 10% numa-vmstat.node0.nr_writeback 58312 ± 17% +42.4% 83023 ± 20% numa-vmstat.node0.nr_zone_inactive_anon 62662 ± 2% +6.8% 66945 ± 5% numa-vmstat.node0.nr_zone_unevictable 926442 ± 6% -53.1% 434282 ± 12% numa-vmstat.node0.nr_zone_write_pending 84324 ± 81% +112.0% 178764 ± 64% numa-vmstat.node1.nr_dirty 427046 ± 84% +74.8% 746464 ± 46% numa-vmstat.node1.nr_zone_write_pending 627042 ± 18% +129.0% 1435752 ± 55% numa-vmstat.node2.nr_dirtied 59963 ± 18% +137.8% 142585 ± 36% numa-vmstat.node2.nr_dirty 634106 ± 15% +112.1% 1345185 ± 50% numa-vmstat.node2.nr_file_pages 567086 ± 17% +125.3% 1277507 ± 53% numa-vmstat.node2.nr_inactive_file 223407 ± 17% +48.3% 331299 ± 7% numa-vmstat.node2.nr_writeback 567087 ± 17% +125.3% 1277515 ± 53% numa-vmstat.node2.nr_zone_inactive_file 283372 ± 17% +67.2% 473906 ± 8% numa-vmstat.node2.nr_zone_write_pending 922.00 ± 19% -20.0% 737.25 ± 6% numa-vmstat.node3.nr_active_anon 14591 ± 20% -50.1% 7276 ± 35% numa-vmstat.node3.nr_slab_reclaimable 922.00 ± 19% -20.0% 737.25 ± 6% numa-vmstat.node3.nr_zone_active_anon 141466 ± 17% +523.4% 881964 ± 85% numa-vmstat.node3.numa_other 282981 ± 14% +46.6% 414731 ± 12% interrupts.CAL:Function_call_interrupts 770.00 ± 51% -56.5% 335.00 ± 59% interrupts.CPU0.NMI:Non-maskable_interrupts 770.00 ± 51% -56.5% 335.00 ± 59% interrupts.CPU0.PMI:Performance_monitoring_interrupts 346.25 ± 15% -46.7% 184.50 ± 23% interrupts.CPU110.NMI:Non-maskable_interrupts 346.25 ± 15% -46.7% 184.50 ± 23% interrupts.CPU110.PMI:Performance_monitoring_interrupts 1359 ± 14% +31.7% 1789 ± 17% interrupts.CPU128.CAL:Function_call_interrupts 1378 ± 14% +2294.9% 33020 ±164% interrupts.CPU153.CAL:Function_call_interrupts 214.50 ± 34% +91.7% 411.25 ± 39% interrupts.CPU16.NMI:Non-maskable_interrupts 214.50 ± 34% +91.7% 411.25 ± 39% interrupts.CPU16.PMI:Performance_monitoring_interrupts 403.50 ± 35% -40.3% 241.00 ± 8% interrupts.CPU169.NMI:Non-maskable_interrupts 403.50 ± 35% -40.3% 241.00 ± 8% interrupts.CPU169.PMI:Performance_monitoring_interrupts 439.00 ± 50% -51.5% 212.75 ± 22% interrupts.CPU170.NMI:Non-maskable_interrupts 439.00 ± 50% -51.5% 212.75 ± 22% interrupts.CPU170.PMI:Performance_monitoring_interrupts 1062 ±116% -77.3% 240.75 ± 23% interrupts.CPU174.NMI:Non-maskable_interrupts 1062 ±116% -77.3% 240.75 ± 23% interrupts.CPU174.PMI:Performance_monitoring_interrupts 291.25 ± 31% -34.2% 191.75 ± 30% interrupts.CPU2.NMI:Non-maskable_interrupts 291.25 ± 31% -34.2% 191.75 ± 30% interrupts.CPU2.PMI:Performance_monitoring_interrupts 342.00 ± 43% -58.3% 142.75 ± 16% interrupts.CPU22.NMI:Non-maskable_interrupts 342.00 ± 43% -58.3% 142.75 ± 16% interrupts.CPU22.PMI:Performance_monitoring_interrupts 241.25 ± 22% -42.6% 138.50 ± 22% interrupts.CPU23.NMI:Non-maskable_interrupts 241.25 ± 22% -42.6% 138.50 ± 22% interrupts.CPU23.PMI:Performance_monitoring_interrupts 1365 ± 14% +49.5% 2041 ± 24% interrupts.CPU35.CAL:Function_call_interrupts 222.00 ± 94% +175.1% 610.75 ± 51% interrupts.CPU63.NMI:Non-maskable_interrupts 222.00 ± 94% +175.1% 610.75 ± 51% interrupts.CPU63.PMI:Performance_monitoring_interrupts 146.75 ± 39% +104.6% 300.25 ± 32% interrupts.CPU64.NMI:Non-maskable_interrupts 146.75 ± 39% +104.6% 300.25 ± 32% interrupts.CPU64.PMI:Performance_monitoring_interrupts 557.00 ± 88% -61.3% 215.75 ± 21% interrupts.CPU74.NMI:Non-maskable_interrupts 557.00 ± 88% -61.3% 215.75 ± 21% interrupts.CPU74.PMI:Performance_monitoring_interrupts 319.25 ± 22% -43.9% 179.25 ± 36% interrupts.CPU75.NMI:Non-maskable_interrupts 319.25 ± 22% -43.9% 179.25 ± 36% interrupts.CPU75.PMI:Performance_monitoring_interrupts 1343 ± 15% +23.0% 1652 ± 4% interrupts.CPU80.CAL:Function_call_interrupts 1095 ± 66% -76.5% 257.00 ± 17% interrupts.CPU96.NMI:Non-maskable_interrupts 1095 ± 66% -76.5% 257.00 ± 17% interrupts.CPU96.PMI:Performance_monitoring_interrupts 817.25 ± 12% +62.6% 1329 ± 17% interrupts.RES:Rescheduling_interrupts 12.39 ± 23% -8.2 4.22 ± 6% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe 12.35 ± 24% -8.1 4.21 ± 6% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe 12.12 ± 24% -8.0 4.08 ± 6% perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe 12.11 ± 24% -8.0 4.07 ± 6% perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe 12.10 ± 24% -8.0 4.06 ± 6% perf-profile.calltrace.cycles-pp.btrfs_file_write_iter.new_sync_write.vfs_write.ksys_write.do_syscall_64 12.07 ± 24% -8.0 4.04 ± 6% perf-profile.calltrace.cycles-pp.btrfs_buffered_write.btrfs_file_write_iter.new_sync_write.vfs_write.ksys_write 12.28 ± 24% -7.5 4.83 ± 5% perf-profile.calltrace.cycles-pp.new_sync_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe 6.07 ± 31% -6.1 0.00 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.__reserve_bytes.btrfs_reserve_metadata_bytes.btrfs_delalloc_reserve_metadata 6.36 ± 30% -4.8 1.55 ± 11% perf-profile.calltrace.cycles-pp.btrfs_delalloc_reserve_metadata.btrfs_buffered_write.btrfs_file_write_iter.new_sync_write.vfs_write 6.31 ± 30% -4.8 1.51 ± 12% perf-profile.calltrace.cycles-pp.__reserve_bytes.btrfs_reserve_metadata_bytes.btrfs_delalloc_reserve_metadata.btrfs_buffered_write.btrfs_file_write_iter 6.31 ± 30% -4.8 1.51 ± 12% perf-profile.calltrace.cycles-pp.btrfs_reserve_metadata_bytes.btrfs_delalloc_reserve_metadata.btrfs_buffered_write.btrfs_file_write_iter.new_sync_write 6.13 ± 31% -4.8 1.38 ± 14% perf-profile.calltrace.cycles-pp._raw_spin_lock.__reserve_bytes.btrfs_reserve_metadata_bytes.btrfs_delalloc_reserve_metadata.btrfs_buffered_write 4.39 ± 18% -3.2 1.21 ± 15% perf-profile.calltrace.cycles-pp.btrfs_inode_rsv_release.btrfs_buffered_write.btrfs_file_write_iter.new_sync_write.vfs_write 4.38 ± 18% -3.2 1.20 ± 15% perf-profile.calltrace.cycles-pp.btrfs_block_rsv_release.btrfs_inode_rsv_release.btrfs_buffered_write.btrfs_file_write_iter.new_sync_write 4.21 ± 19% -3.1 1.09 ± 20% perf-profile.calltrace.cycles-pp._raw_spin_lock.btrfs_block_rsv_release.btrfs_inode_rsv_release.btrfs_buffered_write.btrfs_file_write_iter 0.13 ±173% +0.5 0.63 ± 6% perf-profile.calltrace.cycles-pp.tick_nohz_irq_exit.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter 4.51 ± 6% +0.5 5.04 ± 3% perf-profile.calltrace.cycles-pp.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter 4.48 ± 5% +0.5 5.02 ± 3% perf-profile.calltrace.cycles-pp.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state 4.37 ± 6% +0.6 4.93 ± 3% perf-profile.calltrace.cycles-pp.hrtimer_interrupt.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt 0.18 ±173% +0.6 0.75 ± 27% perf-profile.calltrace.cycles-pp.console_unlock.vprintk_emit.devkmsg_emit.devkmsg_write.cold.new_sync_write 0.18 ±173% +0.6 0.76 ± 27% perf-profile.calltrace.cycles-pp.vprintk_emit.devkmsg_emit.devkmsg_write.cold.new_sync_write.vfs_write 0.18 ±173% +0.6 0.76 ± 27% perf-profile.calltrace.cycles-pp.devkmsg_write.cold.new_sync_write.vfs_write.ksys_write.do_syscall_64 0.18 ±173% +0.6 0.76 ± 27% perf-profile.calltrace.cycles-pp.devkmsg_emit.devkmsg_write.cold.new_sync_write.vfs_write.ksys_write 0.18 ±173% +0.6 0.77 ± 27% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write 0.18 ±173% +0.6 0.77 ± 27% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 0.18 ±173% +0.6 0.77 ± 27% perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 0.18 ±173% +0.6 0.77 ± 27% perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 0.18 ±173% +0.6 0.77 ± 27% perf-profile.calltrace.cycles-pp.write 0.00 +0.6 0.62 ± 7% perf-profile.calltrace.cycles-pp.ktime_get.tick_nohz_irq_exit.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state 0.00 +1.1 1.06 ± 21% perf-profile.calltrace.cycles-pp.__cna_queued_spin_lock_slowpath._raw_spin_lock.btrfs_block_rsv_release.btrfs_inode_rsv_release.btrfs_buffered_write 7.48 ± 5% +1.2 8.68 ± 2% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.do_idle 0.00 +1.3 1.33 ± 15% perf-profile.calltrace.cycles-pp.__cna_queued_spin_lock_slowpath._raw_spin_lock.__reserve_bytes.btrfs_reserve_metadata_bytes.btrfs_delalloc_reserve_metadata 11.79 ± 8% +2.8 14.63 ± 8% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry 9.11 ± 14% +4.4 13.51 ± 18% perf-profile.calltrace.cycles-pp.menu_select.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify 10.58 ± 26% -10.6 0.00 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath 12.10 ± 24% -8.0 4.06 ± 6% perf-profile.children.cycles-pp.btrfs_file_write_iter 12.07 ± 24% -8.0 4.04 ± 6% perf-profile.children.cycles-pp.btrfs_buffered_write 14.00 ± 18% -7.9 6.09 ± 7% perf-profile.children.cycles-pp._raw_spin_lock 12.64 ± 23% -7.8 4.85 ± 5% perf-profile.children.cycles-pp.ksys_write 12.62 ± 24% -7.8 4.83 ± 5% perf-profile.children.cycles-pp.new_sync_write 12.63 ± 23% -7.8 4.85 ± 5% perf-profile.children.cycles-pp.vfs_write 13.17 ± 23% -7.6 5.60 ± 6% perf-profile.children.cycles-pp.do_syscall_64 13.24 ± 23% -7.3 5.92 ± 6% perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 6.38 ± 30% -4.8 1.55 ± 12% perf-profile.children.cycles-pp.__reserve_bytes 6.33 ± 30% -4.8 1.52 ± 12% perf-profile.children.cycles-pp.btrfs_reserve_metadata_bytes 6.36 ± 30% -4.8 1.55 ± 11% perf-profile.children.cycles-pp.btrfs_delalloc_reserve_metadata 4.49 ± 18% -3.3 1.23 ± 15% perf-profile.children.cycles-pp.btrfs_block_rsv_release 4.39 ± 18% -3.2 1.21 ± 15% perf-profile.children.cycles-pp.btrfs_inode_rsv_release 0.16 ± 77% -0.1 0.06 ± 7% perf-profile.children.cycles-pp.do_filp_open 0.16 ± 77% -0.1 0.06 ± 7% perf-profile.children.cycles-pp.path_openat 0.16 ± 75% -0.1 0.06 ± 6% perf-profile.children.cycles-pp.do_sys_open 0.16 ± 75% -0.1 0.06 ± 6% perf-profile.children.cycles-pp.do_sys_openat2 0.21 ± 32% -0.1 0.13 ± 29% perf-profile.children.cycles-pp.rcu_sched_clock_irq 0.22 ± 9% -0.1 0.16 ± 6% perf-profile.children.cycles-pp.update_blocked_averages 0.10 ± 29% -0.0 0.05 ± 70% perf-profile.children.cycles-pp.update_ts_time_stats 0.07 ± 12% -0.0 0.04 ± 58% perf-profile.children.cycles-pp.__pagevec_lru_add_fn 0.16 ± 9% +0.0 0.20 ± 12% perf-profile.children.cycles-pp.brd_lookup_page 0.13 ± 11% +0.0 0.17 ± 18% perf-profile.children.cycles-pp.__radix_tree_lookup 0.14 ± 7% +0.1 0.20 ± 9% perf-profile.children.cycles-pp.__intel_pmu_enable_all 0.48 ± 8% +0.1 0.62 ± 8% perf-profile.children.cycles-pp._raw_spin_lock_irqsave 0.51 ± 29% +0.3 0.77 ± 27% perf-profile.children.cycles-pp.write 0.39 ± 32% +0.3 0.65 ± 6% perf-profile.children.cycles-pp.tick_nohz_irq_exit 0.50 ± 30% +0.3 0.76 ± 27% perf-profile.children.cycles-pp.devkmsg_write.cold 0.50 ± 30% +0.3 0.76 ± 27% perf-profile.children.cycles-pp.devkmsg_emit 0.03 ±173% +0.3 0.29 ±108% perf-profile.children.cycles-pp.osq_lock 0.03 ±173% +0.3 0.29 ±107% perf-profile.children.cycles-pp.__mutex_lock 0.11 ±130% +0.3 0.45 ± 68% perf-profile.children.cycles-pp.__do_sys_finit_module 0.11 ±130% +0.3 0.45 ± 68% perf-profile.children.cycles-pp.load_module 0.11 ±130% +0.3 0.45 ± 67% perf-profile.children.cycles-pp.syscall 0.14 ± 88% +0.4 0.54 ± 53% perf-profile.children.cycles-pp.wb_workfn 0.14 ± 88% +0.4 0.54 ± 53% perf-profile.children.cycles-pp.wb_writeback 0.14 ± 88% +0.4 0.54 ± 53% perf-profile.children.cycles-pp.writeback_sb_inodes 0.12 ±105% +0.4 0.53 ± 54% perf-profile.children.cycles-pp.__writeback_single_inode 4.76 ± 5% +0.5 5.21 ± 3% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt 4.65 ± 5% +0.5 5.13 ± 2% perf-profile.children.cycles-pp.hrtimer_interrupt 6.15 ± 5% +0.5 6.65 ± 2% perf-profile.children.cycles-pp.asm_call_sysvec_on_stack 2.06 ± 28% +1.0 3.05 ± 9% perf-profile.children.cycles-pp.ktime_get 7.80 ± 4% +1.1 8.94 ± 2% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt 10.10 ± 6% +2.0 12.05 ± 6% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt 0.00 +2.6 2.56 ± 19% perf-profile.children.cycles-pp.__cna_queued_spin_lock_slowpath 9.16 ± 14% +4.4 13.57 ± 18% perf-profile.children.cycles-pp.menu_select 10.50 ± 26% -10.5 0.00 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath 0.18 ± 30% -0.1 0.11 ± 27% perf-profile.self.cycles-pp.rcu_sched_clock_irq 0.10 ± 11% +0.0 0.13 ± 10% perf-profile.self.cycles-pp.__extent_writepage 0.14 ± 7% +0.1 0.20 ± 9% perf-profile.self.cycles-pp.__intel_pmu_enable_all 0.08 ± 10% +0.1 0.16 ± 22% perf-profile.self.cycles-pp.end_page_writeback 0.03 ±173% +0.2 0.28 ±105% perf-profile.self.cycles-pp.osq_lock 1.77 ± 32% +1.0 2.75 ± 10% perf-profile.self.cycles-pp.ktime_get 0.00 +2.5 2.51 ± 19% perf-profile.self.cycles-pp.__cna_queued_spin_lock_slowpath 7.68 ± 15% +4.1 11.79 ± 21% perf-profile.self.cycles-pp.menu_select fsmark.files_per_sec 4500 +--------------------------------------------------------------------+ | O O O O O O | 4000 |-+O O | 3500 |-+ O O O O O O | | O O O O O | 3000 |-+ O | 2500 |-+ | | | 2000 |-+ | 1500 |-+ | |.. .+..+..+.+..+..+.+..+..+.+..+..+.+..+.+..+..+.+..+..+.+..+..+.+..| 1000 |-++ | 500 |-+ | | | 0 +--------------------------------------------------------------------+ [*] bisect-good sample [O] bisect-bad sample *************************************************************************************************** lkp-cpl-4sp1: 144 threads Intel(R) Xeon(R) Gold 5318H CPU @ 2.50GHz with 128G memory 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, Oliver Sang

9 months

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[drm/i915/gt] 8c3b1ba0e7: perf-sanity-tests.Parse_event_definition_strings.fail

by kernel test robot

Greeting, FYI, we noticed the following commit (built with gcc-9): commit: 8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813 ("drm/i915/gt: Track the overall awake/busy time") git://anongit.freedesktop.org/drm-intel drm-intel-gt-next in testcase: perf-sanity-tests version: perf-x86_64-fa02fcd94b0c-1_20201126 with following parameters: perf_compiler: gcc ucode: 0xe2 on test machine: 4 threads Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz with 32G memory caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): If you fix the issue, kindly add following tag Reported-by: kernel test robot <oliver.sang(a)intel.com> 2020-12-24 12:50:16 make ARCH= EXTRA_CFLAGS=-fno-omit-frame-pointer -fsanitize=undefined -fsanitize=address -C /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf make: Entering directory '/usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf' BUILD: Doing 'make [33m-j4[m' parallel build HOSTCC fixdep.o HOSTLD fixdep-in.o LINK fixdep diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h diff -u tools/arch/x86/lib/memcpy_64.S arch/x86/lib/memcpy_64.S diff -u tools/arch/x86/lib/memset_64.S arch/x86/lib/memset_64.S Auto-detecting system features: ... dwarf: [ [32mon[m ] ... dwarf_getlocations: [ [32mon[m ] ... glibc: [ [32mon[m ] ... libbfd: [ [32mon[m ] ... libbfd-buildid: [ [32mon[m ] ... libcap: [ [32mon[m ] ... libelf: [ [32mon[m ] ... libnuma: [ [32mon[m ] ... numa_num_possible_cpus: [ [32mon[m ] ... libperl: [ [32mon[m ] ... libpython: [ [32mon[m ] ... libcrypto: [ [32mon[m ] ... libunwind: [ [32mon[m ] ... libdw-dwarf-unwind: [ [32mon[m ] ... zlib: [ [32mon[m ] ... lzma: [ [32mon[m ] ... get_cpuid: [ [32mon[m ] ... bpf: [ [32mon[m ] ... libaio: [ [32mon[m ] ... libzstd: [ [32mon[m ] ... disassembler-four-args: [ [32mon[m ] CC fd/array.o CC exec-cmd.o CC event-parse.o CC core.o LD fd/libapi-in.o CC fs/fs.o CC cpumap.o CC help.o CC fs/tracing_path.o CC fs/cgroup.o LD fs/libapi-in.o CC cpu.o CC threadmap.o CC debug.o CC pager.o CC str_error_r.o LD libapi-in.o AR libapi.a CC parse-options.o CC event-plugin.o CC evsel.o CC trace-seq.o CC parse-filter.o CC evlist.o CC mmap.o CC parse-utils.o CC kbuffer-parse.o CC zalloc.o CC tep_strerror.o CC event-parse-api.o CC xyarray.o LD libtraceevent-in.o LINK libtraceevent.a CC lib.o GEN bpf_helper_defs.h MKDIR staticobjs/ CC staticobjs/libbpf.o LD libperf-in.o AR libperf.a GEN common-cmds.h CC run-command.o CC sigchain.o CC subcmd-config.o LD libsubcmd-in.o MKDIR staticobjs/ AR libsubcmd.a CC staticobjs/bpf.o CC staticobjs/nlattr.o CC staticobjs/btf.o HOSTCC pmu-events/json.o HOSTCC pmu-events/jsmn.o HOSTCC pmu-events/jevents.o HOSTLD pmu-events/jevents-in.o CC plugin_jbd2.o LD plugin_jbd2-in.o CC plugin_hrtimer.o LD plugin_hrtimer-in.o CC plugin_kmem.o LD plugin_kmem-in.o CC plugin_kvm.o LD plugin_kvm-in.o CC staticobjs/libbpf_errno.o CC plugin_mac80211.o CC staticobjs/str_error.o CC staticobjs/netlink.o LD plugin_mac80211-in.o CC plugin_sched_switch.o LD plugin_sched_switch-in.o CC plugin_function.o CC staticobjs/bpf_prog_linfo.o LD plugin_function-in.o CC plugin_futex.o CC staticobjs/libbpf_probes.o LD plugin_futex-in.o CC plugin_xen.o CC staticobjs/xsk.o LD plugin_xen-in.o CC plugin_scsi.o CC staticobjs/hashmap.o LD plugin_scsi-in.o CC plugin_tlb.o CC plugin_cfg80211.o CC jvmti/libjvmti.o LD plugin_cfg80211-in.o GEN perf-archive LD plugin_tlb-in.o LINK plugin_jbd2.so GEN perf-with-kcore CC jvmti/jvmti_agent.o CC staticobjs/btf_dump.o LINK plugin_hrtimer.so LINK plugin_kmem.so LINK plugin_kvm.so LINK plugin_mac80211.so CC staticobjs/ringbuf.o LINK plugin_sched_switch.so LINK plugin_function.so LINK plugin_futex.so LINK plugin_xen.so LD staticobjs/libbpf-in.o LINK libbpf.a LINK plugin_scsi.so CC jvmti/libstring.o LINK plugin_cfg80211.so CC builtin-bench.o LINK plugin_tlb.so GEN libtraceevent-dynamic-list CC jvmti/libctype.o CC builtin-annotate.o CC builtin-config.o LD jvmti/jvmti-in.o CC builtin-diff.o LINK pmu-events/jevents CC builtin-evlist.o CC builtin-ftrace.o LINK libperf-jvmti.so CC builtin-help.o CC builtin-sched.o CC builtin-buildid-list.o CC builtin-buildid-cache.o CC builtin-kallsyms.o CC builtin-list.o CC builtin-record.o CC builtin-report.o CC builtin-stat.o CC builtin-timechart.o CC builtin-top.o CC builtin-script.o CC builtin-kmem.o CC builtin-lock.o CC builtin-kvm.o CC builtin-inject.o CC builtin-mem.o CC builtin-data.o CC builtin-version.o CC builtin-c2c.o CC builtin-trace.o CC builtin-probe.o CC bench/sched-messaging.o CC bench/sched-pipe.o CC bench/syscall.o CC bench/mem-functions.o CC bench/futex-hash.o CC bench/futex-wake.o CC bench/futex-wake-parallel.o CC bench/futex-requeue.o CC bench/futex-lock-pi.o CC tests/builtin-test.o CC bench/epoll-wait.o CC bench/epoll-ctl.o CC tests/parse-events.o CC util/annotate.o CC bench/synthesize.o CC bench/kallsyms-parse.o CC bench/find-bit-bench.o CC bench/inject-buildid.o CC bench/mem-memcpy-x86-64-asm.o CC bench/mem-memset-x86-64-asm.o CC bench/numa.o CC tests/dso-data.o CC tests/attr.o CC tests/vmlinux-kallsyms.o LD bench/perf-in.o CC arch/common.o CC tests/openat-syscall.o CC arch/x86/util/header.o CC tests/openat-syscall-all-cpus.o CC arch/x86/util/tsc.o CC arch/x86/util/pmu.o CC tests/openat-syscall-tp-fields.o CC arch/x86/util/kvm-stat.o CC tests/mmap-basic.o CC arch/x86/util/perf_regs.o CC arch/x86/util/topdown.o CC tests/perf-record.o CC arch/x86/util/machine.o CC arch/x86/tests/regs_load.o CC arch/x86/tests/dwarf-unwind.o CC util/block-info.o CC arch/x86/tests/arch-tests.o CC arch/x86/util/event.o CC arch/x86/tests/rdpmc.o CC tests/evsel-roundtrip-name.o CC arch/x86/util/dwarf-regs.o CC arch/x86/util/unwind-libunwind.o CC arch/x86/tests/perf-time-to-tsc.o CC arch/x86/util/auxtrace.o CC tests/evsel-tp-sched.o CC arch/x86/util/archinsn.o CC tests/fdarray.o CC arch/x86/tests/insn-x86.o CC arch/x86/util/intel-pt.o CC arch/x86/tests/intel-pt-pkt-decoder-test.o CC tests/pmu.o CC arch/x86/tests/bp-modify.o CC util/block-range.o CC tests/pmu-events.o LD arch/x86/tests/perf-in.o CC tests/hists_common.o CC tests/hists_link.o CC util/build-id.o CC ui/setup.o CC tests/hists_filter.o CC arch/x86/util/intel-bts.o CC ui/helpline.o CC ui/progress.o CC ui/util.o CC ui/hist.o CC tests/hists_output.o CC util/cacheline.o CC util/config.o LD arch/x86/util/perf-in.o LD arch/x86/perf-in.o LD arch/perf-in.o CC tests/hists_cumulate.o CC util/copyfile.o CC util/ctype.o CC util/db-export.o CC tests/python-use.o CC tests/bp_signal.o CC tests/bp_signal_overflow.o CC tests/bp_account.o CC tests/wp.o CC tests/task-exit.o CC tests/sw-clock.o CC tests/mmap-thread-lookup.o CC util/env.o CC scripts/perl/Perf-Trace-Util/Context.o CC tests/thread-maps-share.o CC util/event.o CC tests/switch-tracking.o LD scripts/perl/Perf-Trace-Util/perf-in.o CC scripts/python/Perf-Trace-Util/Context.o LD scripts/python/Perf-Trace-Util/perf-in.o LD scripts/perf-in.o CC trace/beauty/clone.o CC tests/keep-tracking.o CC trace/beauty/fcntl.o CC tests/code-reading.o CC trace/beauty/flock.o CC util/evlist.o CC trace/beauty/fsmount.o CC trace/beauty/fspick.o CC trace/beauty/ioctl.o CC trace/beauty/kcmp.o CC trace/beauty/mount_flags.o CC trace/beauty/move_mount.o CC trace/beauty/pkey_alloc.o CC tests/sample-parsing.o CC trace/beauty/arch_prctl.o CC trace/beauty/prctl.o CC trace/beauty/renameat.o CC trace/beauty/sockaddr.o CC trace/beauty/socket.o CC trace/beauty/statx.o CC tests/parse-no-sample-id-all.o CC trace/beauty/sync_file_range.o CC tests/kmod-path.o CC trace/beauty/tracepoints/x86_irq_vectors.o CC trace/beauty/tracepoints/x86_msr.o LD trace/beauty/tracepoints/perf-in.o LD trace/beauty/perf-in.o CC perf.o CC tests/thread-map.o CC tests/llvm.o CC tests/bpf.o CC util/sideband_evlist.o CC util/evsel.o CC util/evsel_fprintf.o CC tests/topology.o CC tests/mem.o CC tests/cpumap.o CC tests/stat.o CC tests/event_update.o CC ui/stdio/hist.o CC util/perf_event_attr_fprintf.o CC tests/event-times.o CC tests/expr.o CC util/evswitch.o CC tests/backward-ring-buffer.o CC util/find_bit.o CC tests/sdt.o CC util/get_current_dir_name.o CC util/kallsyms.o CC tests/is_printable_array.o CC tests/bitmap.o CC util/levenshtein.o CC ui/browser.o CC tests/perf-hooks.o CC tests/clang.o CC util/llvm-utils.o CC tests/unit_number__scnprintf.o CC tests/mem2node.o CC tests/maps.o CC util/mmap.o CC tests/time-utils-test.o CC util/memswap.o CC ui/browsers/annotate.o BISON util/parse-events-bison.c CC util/perf_regs.o CC util/path.o CC tests/genelf.o CC ui/browsers/hists.o CC tests/api-io.o CC tests/demangle-java-test.o CC tests/pfm.o CC tests/parse-metric.o CC util/print_binary.o CC util/rlimit.o CC tests/pe-file-parsing.o CC util/argv_split.o CC tests/expand-cgroup.o CC ui/browsers/map.o CC util/rbtree.o CC ui/browsers/scripts.o CC tests/dwarf-unwind.o CC ui/browsers/header.o CC tests/llvm-src-base.o CC tests/llvm-src-kbuild.o CC tests/llvm-src-prologue.o CC tests/llvm-src-relocation.o CC ui/browsers/res_sample.o LD tests/perf-in.o CC util/libstring.o CC util/bitmap.o CC util/hweight.o CC util/smt.o CC ui/tui/setup.o CC util/strbuf.o CC util/string.o CC ui/tui/util.o CC util/strlist.o CC util/strfilter.o CC ui/tui/helpline.o CC util/top.o CC ui/tui/progress.o LD ui/tui/perf-in.o CC util/usage.o CC util/dso.o CC util/dsos.o CC util/symbol.o CC util/symbol_fprintf.o CC util/color.o CC util/color_config.o CC util/metricgroup.o CC util/header.o CC util/callchain.o CC util/values.o CC util/debug.o CC util/fncache.o CC util/machine.o CC util/map.o CC util/pstack.o CC util/session.o CC util/sample-raw.o CC util/s390-sample-raw.o CC util/syscalltbl.o CC util/ordered-events.o CC util/namespaces.o LD ui/browsers/perf-in.o LD ui/perf-in.o CC util/comm.o CC util/thread.o CC util/thread_map.o CC util/trace-event-parse.o CC util/parse-events-bison.o BISON util/pmu-bison.c CC util/trace-event-read.o CC util/trace-event-info.o GEN python/perf.so CC util/trace-event-scripting.o CC util/trace-event.o CC util/svghelper.o CC util/sort.o CC util/hist.o CC util/util.o CC util/cpumap.o CC util/affinity.o CC util/cputopo.o CC util/cgroup.o CC util/target.o CC util/rblist.o CC util/intlist.o CC util/vdso.o CC util/counts.o CC util/stat.o CC util/stat-shadow.o CC util/stat-display.o CC util/perf_api_probe.o CC util/record.o CC util/srcline.o CC util/srccode.o CC util/synthetic-events.o CC util/data.o CC util/tsc.o CC util/cloexec.o CC util/call-path.o CC util/rwsem.o CC util/thread-stack.o CC util/spark.o CC util/topdown.o CC util/stream.o CC util/auxtrace.o CC util/intel-pt-decoder/intel-pt-pkt-decoder.o GEN util/intel-pt-decoder/inat-tables.c CC util/intel-pt-decoder/intel-pt-log.o CC util/intel-pt-decoder/intel-pt-decoder.o CC util/arm-spe-decoder/arm-spe-pkt-decoder.o CC util/arm-spe-decoder/arm-spe-decoder.o LD util/arm-spe-decoder/perf-in.o CC util/scripting-engines/trace-event-perl.o GEN pmu-events/pmu-events.c CC pmu-events/pmu-events.o CC util/scripting-engines/trace-event-python.o CC util/intel-pt.o LD pmu-events/pmu-events-in.o CC util/intel-bts.o CC util/arm-spe.o CC util/intel-pt-decoder/intel-pt-insn-decoder.o LD util/scripting-engines/perf-in.o CC util/s390-cpumsf.o CC util/parse-branch-options.o CC util/dump-insn.o CC util/parse-regs-options.o CC util/parse-sublevel-options.o CC util/term.o CC util/help-unknown-cmd.o CC util/mem-events.o CC util/vsprintf.o LD util/intel-pt-decoder/perf-in.o CC util/units.o CC util/time-utils.o BISON util/expr-bison.c CC util/branch.o CC util/mem2node.o CC util/clockid.o CC util/bpf-loader.o CC util/bpf_map.o CC util/bpf-prologue.o CC util/symbol-elf.o CC util/probe-file.o CC util/probe-event.o CC util/probe-finder.o CC util/dwarf-aux.o CC util/dwarf-regs.o CC util/unwind-libunwind-local.o CC util/unwind-libunwind.o CC util/data-convert-bt.o CC util/zlib.o CC util/lzma.o CC util/zstd.o CC util/cap.o CC util/demangle-java.o CC util/demangle-rust.o CC util/jitdump.o CC util/genelf.o CC util/genelf_debug.o CC util/perf-hooks.o CC util/bpf-event.o FLEX util/parse-events-flex.c FLEX util/pmu-flex.c CC util/pmu-bison.o FLEX util/expr-flex.c CC util/expr-bison.o CC util/expr.o CC util/parse-events.o CC util/parse-events-flex.o CC util/pmu.o CC util/pmu-flex.o CC util/expr-flex.o LD util/perf-in.o LD perf-in.o LINK perf make: Leaving directory '/usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf' 2020-12-24 12:51:30 cd /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf 2020-12-24 12:51:30 mkdir -p /pkg 2020-12-24 12:51:30 mkdir -p /kbuild/obj/consumer/x86_64-rhel-8.3 2020-12-24 12:51:30 cp /pkg/linux/x86_64-rhel-8.3/gcc-9/8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/vmlinux.xz /tmp 2020-12-24 12:51:31 unxz -k /tmp/vmlinux.xz 2020-12-24 12:51:35 cp /tmp/vmlinux /kbuild/obj/consumer/x86_64-rhel-8.3 ignored_by_lkp: BPF filter ignored_by_lkp: LLVM search and compile ignored_by_lkp: Add vfs_getname probe to get syscall args filenames ignored_by_lkp: Use vfs_getname probe to get syscall args filenames ignored_by_lkp: Check open filename arg using perf trace + vfs_getname ignored_by_lkp: builtin clang support 2020-12-24 12:51:35 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 1 1: vmlinux symtab matches kallsyms : Ok 2020-12-24 12:51:36 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 2 2: Detect openat syscall event : Ok 2020-12-24 12:51:36 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 3 3: Detect openat syscall event on all cpus : Ok 2020-12-24 12:51:36 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 4 4: Read samples using the mmap interface : FAILED! 2020-12-24 12:51:36 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 5 5: Test data source output : Ok 2020-12-24 12:51:36 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 6 6: Parse event definition strings : FAILED! 2020-12-24 12:51:37 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 7 7: Simple expression parser : Ok 2020-12-24 12:51:38 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 8 8: PERF_RECORD_* events & perf_sample fields : Ok 2020-12-24 12:51:40 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 9 9: Parse perf pmu format : Ok 2020-12-24 12:51:40 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 10 10: PMU events : 10.1: PMU event table sanity : Ok 10.2: PMU event map aliases : Ok 10.3: Parsing of PMU event table metrics : Skip (some metrics failed) 10.4: Parsing of PMU event table metrics with fake PMUs : Ok 2020-12-24 12:51:42 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 11 11: DSO data read : Ok 2020-12-24 12:51:42 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 12 12: DSO data cache : Ok 2020-12-24 12:51:42 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 13 13: DSO data reopen : Ok 2020-12-24 12:51:42 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 14 14: Roundtrip evsel->name : Ok 2020-12-24 12:51:42 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 15 15: Parse sched tracepoints fields : Ok 2020-12-24 12:51:42 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 16 16: syscalls:sys_enter_openat event fields : Ok 2020-12-24 12:51:42 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 17 17: Setup struct perf_event_attr : Ok 2020-12-24 12:51:56 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 18 18: Match and link multiple hists : Ok 2020-12-24 12:51:56 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 19 19: 'import perf' in python : FAILED! 2020-12-24 12:51:56 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 20 20: Breakpoint overflow signal handler : Ok 2020-12-24 12:51:56 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 21 21: Breakpoint overflow sampling : Ok 2020-12-24 12:51:57 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 22 22: Breakpoint accounting : Ok 2020-12-24 12:51:57 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 23 23: Watchpoint : 23.1: Read Only Watchpoint : Skip 23.2: Write Only Watchpoint : Ok 23.3: Read / Write Watchpoint : Ok 23.4: Modify Watchpoint : Ok 2020-12-24 12:51:57 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 24 24: Number of exit events of a simple workload : FAILED! 2020-12-24 12:51:57 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 25 25: Software clock events period values : FAILED! 2020-12-24 12:51:57 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 26 26: Object code reading : FAILED! 2020-12-24 12:52:00 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 27 27: Sample parsing : Ok 2020-12-24 12:52:00 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 28 28: Use a dummy software event to keep tracking : FAILED! 2020-12-24 12:52:00 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 29 29: Parse with no sample_id_all bit set : Ok 2020-12-24 12:52:00 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 30 30: Filter hist entries : Ok 2020-12-24 12:52:00 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 31 31: Lookup mmap thread : FAILED! 2020-12-24 12:52:01 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 32 32: Share thread maps : Ok 2020-12-24 12:52:01 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 33 33: Sort output of hist entries : Ok 2020-12-24 12:52:01 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 34 34: Cumulate child hist entries : Ok 2020-12-24 12:52:01 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 35 35: Track with sched_switch : FAILED! 2020-12-24 12:52:01 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 36 36: Filter fds with revents mask in a fdarray : Ok 2020-12-24 12:52:02 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 37 37: Add fd to a fdarray, making it autogrow : Ok 2020-12-24 12:52:02 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 38 38: kmod_path__parse : Ok 2020-12-24 12:52:02 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 39 39: Thread map : Ok 2020-12-24 12:52:02 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 41 41: Session topology : FAILED! 2020-12-24 12:52:02 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 43 43: Synthesize thread map : FAILED! 2020-12-24 12:52:02 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 44 44: Remove thread map : FAILED! 2020-12-24 12:52:02 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 45 45: Synthesize cpu map : Ok 2020-12-24 12:52:02 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 46 46: Synthesize stat config : Ok 2020-12-24 12:52:02 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 47 47: Synthesize stat : Ok 2020-12-24 12:52:02 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 48 48: Synthesize stat round : Ok 2020-12-24 12:52:02 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 49 49: Synthesize attr update : FAILED! 2020-12-24 12:52:03 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 50 50: Event times : Ok 2020-12-24 12:52:03 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 51 51: Read backward ring buffer : Ok 2020-12-24 12:52:03 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 52 52: Print cpu map : FAILED! 2020-12-24 12:52:03 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 53 53: Merge cpu map : Ok 2020-12-24 12:52:03 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 54 54: Probe SDT events : Ok 2020-12-24 12:52:03 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 55 55: is_printable_array : Ok 2020-12-24 12:52:03 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 56 56: Print bitmap : Ok 2020-12-24 12:52:03 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 57 57: perf hooks : Ok 2020-12-24 12:52:03 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 59 59: unit_number__scnprintf : Ok 2020-12-24 12:52:03 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 60 60: mem2node : Ok 2020-12-24 12:52:03 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 61 61: time utils : Ok 2020-12-24 12:52:03 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 62 62: Test jit_write_elf : Ok 2020-12-24 12:52:03 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 63 63: Test libpfm4 support : Skip (not compiled in) 2020-12-24 12:52:04 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 64 64: Test api io : Ok 2020-12-24 12:52:04 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 65 65: maps__merge_in : FAILED! 2020-12-24 12:52:04 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 66 66: Demangle Java : Ok 2020-12-24 12:52:04 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 67 67: Parse and process metrics : Ok 2020-12-24 12:52:04 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 68 68: PE file support : FAILED! 2020-12-24 12:52:04 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 69 69: Event expansion for cgroups : Ok 2020-12-24 12:52:04 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 70 70: x86 rdpmc : Ok 2020-12-24 12:52:04 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 71 71: Convert perf time to TSC : FAILED! 2020-12-24 12:52:04 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 72 72: DWARF unwind : FAILED! 2020-12-24 12:52:05 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 73 73: x86 instruction decoder - new instructions : Ok 2020-12-24 12:52:05 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 74 74: Intel PT packet decoder : Ok 2020-12-24 12:52:05 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 75 75: x86 bp modify : Ok 2020-12-24 12:52:05 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 76 76: probe libc's inet_pton & backtrace it with ping : Ok 2020-12-24 12:52:07 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 77 77: Check Arm CoreSight trace data recording and synthesized samples: Skip 2020-12-24 12:52:07 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 78 78: build id cache operations : FAILED! 2020-12-24 12:52:08 sudo /usr/src/perf_selftests-x86_64-rhel-8.3-8c3b1ba0e7ea9a80b0ee4b4445ea59c806787813/tools/perf/perf test 81 81: Zstd perf.data compression/decompression : FAILED! 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 Thanks, Oliver Sang

9 months

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[workqueue] 6094661b16: WARNING:at_kernel/sched/core.c:#__set_cpus_allowed_ptr

by kernel test robot

Greeting, FYI, we noticed the following commit (built with gcc-9): commit: 6094661b1679bd1d59eb620371dfbf327e9feca7 ("[PATCH -tip V2 04/10] workqueue: don't set the worker's cpumask when kthread_bind_mask()") url: https://github.com/0day-ci/linux/commits/Lai-Jiangshan/workqueue-break-af... base: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git a409ed156a90093a03fe6a93721ddf4c591eac87 in testcase: will-it-scale version: will-it-scale-x86_64-b695a1b-1_20201217 with following parameters: nr_task: 50% mode: process test: context_switch1 cpufreq_governor: performance ucode: 0x2006a08 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 on test machine: 104 threads Skylake with 192G memory caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): If you fix the issue, kindly add following tag Reported-by: kernel test robot <oliver.sang(a)intel.com> kern :warn : [ 2.900184] WARNING: CPU: 26 PID: 140 at kernel/sched/core.c:2379 __set_cpus_allowed_ptr+0x1c4/0x1e0 kern :warn : [ 2.900184] Modules linked in: kern :warn : [ 2.900184] CPU: 26 PID: 140 Comm: cpuhp/26 Not tainted 5.10.0-11829-g6094661b1679 #1 kern :warn : [ 2.900184] RIP: 0010:__set_cpus_allowed_ptr+0x1c4/0x1e0 kern :warn : [ 2.900184] Code: 74 99 8b 15 d2 d6 ad 01 48 c7 c6 a0 30 bf 82 4c 89 f7 e8 8f bd 48 00 85 c0 75 80 41 83 bc 24 c0 03 00 00 01 0f 84 71 ff ff ff <0f> 0b e9 6a ff ff ff e8 b0 5c ac 00 66 66 2e 0f 1f 84 00 00 00 00 kern :warn : [ 2.900184] RSP: 0000:ffffc9000cebfd00 EFLAGS: 00010006 kern :warn : [ 2.900184] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000ffffff98 kern :warn : [ 2.900184] RDX: 00000000ffffff98 RSI: 0000000000000000 RDI: ffff889846721ed0 kern :warn : [ 2.900184] RBP: ffffc9000cebfd40 R08: 0000000000000001 R09: 0000000000000002 kern :warn : [ 2.900184] R10: ffff889846721ed0 R11: ffffc9010cebfcd7 R12: ffff889846730000 kern :warn : [ 2.900184] R13: ffff8897e042b040 R14: ffff889846721ed0 R15: 000000000000001a kern :warn : [ 2.900184] FS: 0000000000000000(0000) GS:ffff88afbc600000(0000) knlGS:0000000000000000 kern :warn : [ 2.900184] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kern :warn : [ 2.900184] CR2: 0000000000000000 CR3: 000000303e20a001 CR4: 00000000007706e0 kern :warn : [ 2.900184] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kern :warn : [ 2.900184] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kern :warn : [ 2.900184] PKRU: 55555554 kern :warn : [ 2.900184] Call Trace: kern :warn : [ 2.900184] worker_attach_to_pool+0x33/0xa0 kern :warn : [ 2.900184] create_worker+0xff/0x1a0 kern :warn : [ 2.900184] alloc_unbound_pwq+0x444/0x460 kern :warn : [ 2.900184] wq_update_unbound_numa+0x1a3/0x1e0 kern :warn : [ 2.900184] workqueue_online_cpu+0x1eb/0x240 kern :warn : [ 2.900184] ? workqueue_prepare_cpu+0x80/0x80 kern :warn : [ 2.900184] cpuhp_invoke_callback+0x82/0x440 kern :warn : [ 2.900184] ? smpboot_thread_fn+0x26/0x1e0 kern :warn : [ 2.900184] cpuhp_thread_fun+0xa4/0x100 kern :warn : [ 2.900184] smpboot_thread_fn+0x10b/0x1e0 kern :warn : [ 2.900184] ? sort_range+0x20/0x20 kern :warn : [ 2.900184] kthread+0x116/0x160 kern :warn : [ 2.900184] ? kthread_park+0xa0/0xa0 kern :warn : [ 2.900184] ret_from_fork+0x22/0x30 kern :warn : [ 2.900184] ---[ end trace ee287c8df3029920 ]--- 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 Thanks, Oliver Sang

9 months

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[kernfs] ca0f27ecb7: BUG:kernel_NULL_pointer_dereference,address

by kernel test robot

Greeting, FYI, we noticed the following commit (built with gcc-9): commit: ca0f27ecb7ab7278183680b79f3de35416372fa3 ("[PATCH 6/6] kernfs: add a spinlock to kernfs iattrs for inode updates") url: https://github.com/0day-ci/linux/commits/Ian-Kent/kernfs-proposed-locking... base: https://git.kernel.org/cgit/linux/kernel/git/gregkh/driver-core.git accefff5b547a9a1d959c7e76ad539bf2480e78b in testcase: locktorture version: 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 8G caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): +---------------------------------------------+------------+------------+ | | 51383f001c | ca0f27ecb7 | +---------------------------------------------+------------+------------+ | boot_successes | 10 | 0 | | boot_failures | 0 | 10 | | BUG:kernel_NULL_pointer_dereference,address | 0 | 10 | | Oops:#[##] | 0 | 10 | | RIP:_raw_spin_lock | 0 | 10 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 10 | +---------------------------------------------+------------+------------+ If you fix the issue, kindly add following tag Reported-by: kernel test robot <oliver.sang(a)intel.com> [ 10.631592] BUG: kernel NULL pointer dereference, address: 0000000000000058 [ 10.633698] #PF: supervisor write access in kernel mode [ 10.635218] #PF: error_code(0x0002) - not-present page [ 10.636627] PGD 0 P4D 0 [ 10.637454] Oops: 0002 [#1] SMP PTI [ 10.638451] CPU: 1 PID: 1 Comm: systemd Not tainted 5.10.0-10901-gca0f27ecb7ab #1 [ 10.640384] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 10.642512] RIP: 0010:_raw_spin_lock+0x13/0x40 [ 10.643746] Code: 33 b7 a2 58 31 c0 ba ff 00 00 00 f0 0f b1 17 75 01 c3 e9 e0 8d 55 ff 66 66 66 66 90 65 ff 05 14 b7 a2 58 31 c0 ba 01 00 00 00 <f0> 0f b1 17 75 01 c3 89 c6 e8 ff 73 55 ff 66 90 c3 66 66 2e 0f 1f [ 10.648414] RSP: 0018:ffff967740013da0 EFLAGS: 00010246 [ 10.649743] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 10.651555] RDX: 0000000000000001 RSI: ffff8a0581d30708 RDI: 0000000000000058 [ 10.653341] RBP: ffff967740013dc8 R08: ffff8a0540232d48 R09: ffff8a0540232d48 [ 10.655161] R10: ffff8a0581d30000 R11: 0000000000000005 R12: ffff8a0581d30708 [ 10.656903] R13: ffff8a05401d5f80 R14: 0000000000000058 R15: ffff8a058739a9c0 [ 10.658737] FS: 00007f88eae95940(0000) GS:ffff8a067fd00000(0000) knlGS:0000000000000000 [ 10.660820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.662400] CR2: 0000000000000058 CR3: 000000010005e000 CR4: 00000000000406e0 [ 10.664204] Call Trace: [ 10.665010] kernfs_refresh_inode+0x26/0xc0 [ 10.667380] kernfs_get_inode+0xa0/0x120 [ 10.668556] kernfs_get_tree+0x12b/0x240 [ 10.669670] sysfs_get_tree+0x13/0x40 [ 10.670694] vfs_get_tree+0x25/0xc0 [ 10.671689] path_mount+0x43f/0x9c0 [ 10.672680] do_mount+0x75/0xa0 [ 10.673635] __x64_sys_mount+0x8e/0xe0 [ 10.674686] do_syscall_64+0x33/0x40 [ 10.675718] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 10.677137] RIP: 0033:0x7f88ec055fea [ 10.678181] Code: 48 8b 0d a9 0e 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 76 0e 0c 00 f7 d8 64 89 01 48 [ 10.682538] RSP: 002b:00007ffcafcda3d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 10.684486] RAX: ffffffffffffffda RBX: 000055e4f51178c0 RCX: 00007f88ec055fea [ 10.686253] RDX: 000055e4f50973a9 RSI: 000055e4f50941bf RDI: 000055e4f50973a9 [ 10.688136] RBP: 0000000000000003 R08: 0000000000000000 R09: 000055e4f5d2f4e0 [ 10.689919] R10: 000000000000000e R11: 0000000000000246 R12: 0000000000000000 [ 10.691647] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 10.693431] Modules linked in: [ 10.694351] CR2: 0000000000000058 [ 10.695309] ---[ end trace f3fef33fa8d30916 ]--- To reproduce: # build kernel cd linux cp config-5.10.0-10901-gca0f27ecb7ab .config make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install cd <mod-install-dir> find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email Thanks, Oliver Sang

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[rcu] ddc403b8de: WARNING:at_kernel/rcu/tasks.h:#rcu_tasks_verify_self_tests

by kernel test robot

Greeting, FYI, we noticed the following commit (built with gcc-9): commit: ddc403b8dedd2df9a95c247b73a534e12e8e40a2 ("rcu-tasks: Add RCU-tasks self tests") https://git.kernel.org/cgit/linux/kernel/git/paulmck/linux-rcu.git dev.2020.12.09a in testcase: boot on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 8G caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): +------------------------------------------------------------+------------+------------+ | | 936a23496c | ddc403b8de | +------------------------------------------------------------+------------+------------+ | boot_successes | 32 | 0 | | boot_failures | 0 | 32 | | WARNING:at_kernel/rcu/tasks.h:#rcu_tasks_verify_self_tests | 0 | 32 | | EIP:rcu_tasks_verify_self_tests | 0 | 32 | +------------------------------------------------------------+------------+------------+ If you fix the issue, kindly add following tag Reported-by: kernel test robot <oliver.sang(a)intel.com> [ 10.025923] WARNING: CPU: 1 PID: 1 at kernel/rcu/tasks.h:1278 rcu_tasks_verify_self_tests+0x18/0x20 [ 10.027560] Modules linked in: [ 10.028138] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.10.0-rc1-00218-gddc403b8dedd #1 [ 10.029493] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 10.030853] EIP: rcu_tasks_verify_self_tests+0x18/0x20 [ 10.031751] Code: 00 00 c3 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 90 8b 15 fc 87 5c 4d 31 c0 39 15 f8 87 5c 4d 75 08 c3 8d b4 26 00 00 00 00 <0f> 0b b8 ff ff ff ff c3 55 89 e5 83 ec 30 89 5d f4 89 75 f8 89 c6 [ 10.035008] EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000002 [ 10.036193] ESI: 4aeee4b0 EDI: 413ea568 EBP: 41231f80 ESP: 41231f20 [ 10.037300] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010202 [ 10.038442] CR0: 80050033 CR2: 37f32080 CR3: 0cee5000 CR4: 00040690 [ 10.039521] Call Trace: [ 10.039984] ? do_one_initcall+0x65/0x330 [ 10.040656] ? rcu_read_lock_sched_held+0x47/0x80 [ 10.041483] ? trace_initcall_level+0x7c/0xa4 [ 10.042238] ? kernel_init_freeable+0x1ff/0x249 [ 10.043092] ? rest_init+0x23e/0x23e [ 10.043697] ? kernel_init+0x8/0xe2 [ 10.044267] ? ret_from_fork+0x1c/0x28 [ 10.044796] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.10.0-rc1-00218-gddc403b8dedd #1 [ 10.045876] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 10.047019] Call Trace: [ 10.047385] ? dump_stack+0x6d/0x8b [ 10.047883] ? __warn.cold+0x24/0x4d [ 10.048390] ? rcu_tasks_verify_self_tests+0x18/0x20 [ 10.049227] ? rcu_tasks_verify_self_tests+0x18/0x20 [ 10.050045] ? rcu_tasks_verify_self_tests+0x18/0x20 [ 10.050888] ? report_bug+0xa3/0xe0 [ 10.051501] ? rcu_tasks_be_rude+0x10/0x10 [ 10.052200] ? exc_overflow+0x50/0x50 [ 10.052867] ? handle_bug+0x28/0x50 [ 10.053481] ? exc_invalid_op+0x26/0x80 [ 10.054157] ? handle_exception+0x12b/0x12b [ 10.054896] ? rcu_tasks_be_rude+0x10/0x10 [ 10.055617] ? serpent_dec_blk_4way+0x1753/0x2518 [ 10.056462] ? validate_chain+0x7fb/0xf00 [ 10.061265] ? rcu_tasks_verify_self_tests+0x18/0x20 [ 10.062151] ? exc_overflow+0x50/0x50 [ 10.062795] ? rcu_tasks_verify_self_tests+0x18/0x20 [ 10.063691] ? do_one_initcall+0x65/0x330 [ 10.064410] ? rcu_read_lock_sched_held+0x47/0x80 [ 10.065264] ? trace_initcall_level+0x7c/0xa4 [ 10.066046] ? kernel_init_freeable+0x1ff/0x249 [ 10.066827] ? rest_init+0x23e/0x23e [ 10.067450] ? kernel_init+0x8/0xe2 [ 10.068046] ? ret_from_fork+0x1c/0x28 [ 10.068843] irq event stamp: 2154779 [ 10.069513] hardirqs last enabled at (2154789): [<4aedbe95>] console_unlock+0x435/0x5e0 [ 10.070970] hardirqs last disabled at (2154798): [<4aedbe85>] console_unlock+0x425/0x5e0 [ 10.072468] softirqs last enabled at (2154778): [<4c014c4f>] __do_softirq+0x29f/0x455 [ 10.073952] softirqs last disabled at (2154767): [<4ae250f7>] call_on_stack+0x47/0x60 [ 10.075334] ---[ end trace db299d2e6ab9f182 ]--- To reproduce: # build kernel cd linux cp config-5.10.0-rc1-00218-gddc403b8dedd .config make HOSTCC=gcc-9 CC=gcc-9 ARCH=i386 olddefconfig prepare modules_prepare 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, Oliver Sang

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LKP December 2020