[LKP] [x86/mm/tlb] 6035152d8e: will-it-scale.per_thread_ops -13.2% regression

Greeting, FYI, we noticed a -13.2% regression of will-it-scale.per_thread_ops due to commit: commit: 6035152d8eebe16a5bb60398d3e05dc7799067b0 ("x86/mm/tlb: Open-code on_each_cpu_cond_mask() for tlb_is_not_lazy()") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master in testcase: will-it-scale on test machine: 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz with 128G memory with following parameters: nr_task: 100% mode: thread test: tlb_flush1 cpufreq_governor: performance ucode: 0xd000331 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 If you fix the issue, kindly add following tag Reported-by: kernel test robot <oliver.sang(a)intel.com&gt; Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests sudo bin/lkp install job.yaml # job file is attached in this email bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run sudo bin/lkp run generated-yaml-file # if come across any failure that blocks the test, # please remove ~/.lkp and /lkp dir to run from a clean state. ========================================================================================= compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase/ucode: gcc-9/performance/x86_64-rhel-8.3/thread/100%/debian-10.4-x86_64-20200603.cgz/lkp-icl-2sp5/tlb_flush1/will-it-scale/0xd000331 commit: 4c1ba3923e ("x86/mm/tlb: Unify flush_tlb_func_local() and flush_tlb_func_remote()") 6035152d8e ("x86/mm/tlb: Open-code on_each_cpu_cond_mask() for tlb_is_not_lazy()") 4c1ba3923e6c8aa7 6035152d8eebe16a5bb60398d3e ---------------- --------------------------- %stddev %change %stddev \ | \ 823626 -13.2% 715243 will-it-scale.128.threads 1.53 -13.2% 1.32 will-it-scale.128.threads_idle 6434 -13.2% 5587 will-it-scale.per_thread_ops 823626 -13.2% 715243 will-it-scale.workload 6.342e+10 -12.9% 5.524e+10 turbostat.IRQ 13455 -10.9% 11995 vmstat.system.cs 8834119 -7.9% 8132489 vmstat.system.in 31.26 -6.6 24.66 ± 2% mpstat.cpu.all.irq% 66.51 +6.7 73.23 mpstat.cpu.all.sys% 0.30 -0.0 0.26 mpstat.cpu.all.usr% 1.282e+08 -11.2% 1.139e+08 numa-numastat.node0.local_node 1.282e+08 -11.1% 1.139e+08 numa-numastat.node0.numa_hit 1.279e+08 ± 2% -14.4% 1.095e+08 ± 2% numa-numastat.node1.local_node 1.279e+08 ± 2% -14.3% 1.096e+08 ± 2% numa-numastat.node1.numa_hit 66398782 -10.5% 59416495 numa-vmstat.node0.numa_hit 66355740 -10.6% 59333364 numa-vmstat.node0.numa_local 66322224 ± 2% -13.8% 57147061 ± 2% numa-vmstat.node1.numa_hit 65908198 ± 2% -13.9% 56773100 ± 2% numa-vmstat.node1.numa_local 13146738 +11.3% 14628057 sched_debug.cfs_rq:/.min_vruntime.avg 10371412 ± 3% +12.7% 11683859 ± 3% sched_debug.cfs_rq:/.min_vruntime.min 2505980 ± 12% -32.7% 1686413 ± 9% sched_debug.cfs_rq:/.spread0.max 18298 -9.0% 16648 sched_debug.cpu.nr_switches.avg 15393 -10.8% 13737 sched_debug.cpu.nr_switches.min 0.04 ± 71% -69.1% 0.01 ± 30% sched_debug.cpu.nr_uninterruptible.avg 194329 +5.8% 205510 proc-vmstat.nr_inactive_anon 194329 +5.8% 205510 proc-vmstat.nr_zone_inactive_anon 2.562e+08 -12.7% 2.235e+08 proc-vmstat.numa_hit 2.56e+08 -12.7% 2.234e+08 proc-vmstat.numa_local 2.563e+08 -12.7% 2.236e+08 proc-vmstat.pgalloc_normal 5.004e+08 -13.0% 4.354e+08 proc-vmstat.pgfault 2.561e+08 -12.7% 2.234e+08 proc-vmstat.pgfree 1.392e+10 -6.5% 1.302e+10 perf-stat.i.branch-instructions 1.246e+08 -9.7% 1.125e+08 perf-stat.i.branch-misses 4.507e+08 -4.6% 4.3e+08 perf-stat.i.cache-misses 1.848e+09 -7.3% 1.713e+09 perf-stat.i.cache-references 13512 -11.0% 12032 perf-stat.i.context-switches 6.74 +7.0% 7.22 perf-stat.i.cpi 182.97 -2.4% 178.63 perf-stat.i.cpu-migrations 916.35 +5.4% 965.43 ± 2% perf-stat.i.cycles-between-cache-misses 1.646e+10 -8.3% 1.51e+10 perf-stat.i.dTLB-loads 0.14 -0.0 0.13 perf-stat.i.dTLB-store-miss-rate% 9784986 -13.2% 8495466 perf-stat.i.dTLB-store-misses 7.083e+09 -10.0% 6.378e+09 perf-stat.i.dTLB-stores 6.113e+10 -6.5% 5.714e+10 perf-stat.i.instructions 0.15 -6.4% 0.14 perf-stat.i.ipc 308.99 -7.9% 284.59 perf-stat.i.metric.M/sec 1655373 -13.1% 1438884 perf-stat.i.minor-faults 27419309 -5.5% 25923350 perf-stat.i.node-loads 1655375 -13.1% 1438886 perf-stat.i.page-faults 0.90 -0.0 0.86 perf-stat.overall.branch-miss-rate% 24.40 +0.7 25.10 perf-stat.overall.cache-miss-rate% 6.75 +7.1% 7.23 perf-stat.overall.cpi 915.93 +4.9% 961.03 perf-stat.overall.cycles-between-cache-misses 0.14 -0.0 0.13 perf-stat.overall.dTLB-store-miss-rate% 0.15 -6.6% 0.14 perf-stat.overall.ipc 22432987 +7.7% 24171448 perf-stat.overall.path-length 1.387e+10 -6.5% 1.297e+10 perf-stat.ps.branch-instructions 1.242e+08 -9.7% 1.121e+08 perf-stat.ps.branch-misses 4.493e+08 -4.6% 4.286e+08 perf-stat.ps.cache-misses 1.842e+09 -7.3% 1.708e+09 perf-stat.ps.cache-references 13466 -10.9% 11992 perf-stat.ps.context-switches 182.44 -2.4% 177.98 perf-stat.ps.cpu-migrations 1.641e+10 -8.3% 1.505e+10 perf-stat.ps.dTLB-loads 9753730 -13.2% 8467120 perf-stat.ps.dTLB-store-misses 7.061e+09 -10.0% 6.357e+09 perf-stat.ps.dTLB-stores 6.094e+10 -6.5% 5.695e+10 perf-stat.ps.instructions 1649980 -13.1% 1433930 perf-stat.ps.minor-faults 27334503 -5.4% 25845323 perf-stat.ps.node-loads 1649982 -13.1% 1433932 perf-stat.ps.page-faults 1.848e+13 -6.4% 1.729e+13 perf-stat.total.instructions 41.88 -41.9 0.00 perf-profile.calltrace.cycles-pp.on_each_cpu_cond_mask.flush_tlb_mm_range.ptep_clear_flush.wp_page_copy.__handle_mm_fault 41.50 -41.5 0.00 perf-profile.calltrace.cycles-pp.smp_call_function_many_cond.on_each_cpu_cond_mask.flush_tlb_mm_range.ptep_clear_flush.wp_page_copy 16.03 ± 2% -16.0 0.00 perf-profile.calltrace.cycles-pp.llist_add_batch.smp_call_function_many_cond.on_each_cpu_cond_mask.flush_tlb_mm_range.ptep_clear_flush 6.79 ± 3% -6.8 0.00 perf-profile.calltrace.cycles-pp.asm_sysvec_call_function.smp_call_function_many_cond.on_each_cpu_cond_mask.flush_tlb_mm_range.ptep_clear_flush 6.52 ± 3% -6.5 0.00 perf-profile.calltrace.cycles-pp.sysvec_call_function.asm_sysvec_call_function.smp_call_function_many_cond.on_each_cpu_cond_mask.flush_tlb_mm_range 6.44 ± 3% -6.4 0.00 perf-profile.calltrace.cycles-pp.__sysvec_call_function.sysvec_call_function.asm_sysvec_call_function.smp_call_function_many_cond.on_each_cpu_cond_mask 5.21 ± 2% -5.2 0.00 perf-profile.calltrace.cycles-pp.asm_sysvec_call_function.llist_add_batch.smp_call_function_many_cond.on_each_cpu_cond_mask.flush_tlb_mm_range 4.97 ± 2% -5.0 0.00 perf-profile.calltrace.cycles-pp.sysvec_call_function.asm_sysvec_call_function.llist_add_batch.smp_call_function_many_cond.on_each_cpu_cond_mask 14.50 ± 4% -4.2 10.28 ± 5% perf-profile.calltrace.cycles-pp.flush_tlb_func.flush_smp_call_function_queue.__sysvec_call_function.sysvec_call_function.asm_sysvec_call_function 12.85 ± 3% -4.1 8.74 ± 3% perf-profile.calltrace.cycles-pp.flush_smp_call_function_queue.__sysvec_call_function.sysvec_call_function.asm_sysvec_call_function.smp_call_function_many_cond 6.79 ± 3% -2.0 4.79 ± 3% perf-profile.calltrace.cycles-pp.asm_sysvec_call_function.smp_call_function_many_cond.flush_tlb_mm_range.tlb_flush_mmu.tlb_finish_mmu 6.52 ± 3% -2.0 4.57 ± 3% perf-profile.calltrace.cycles-pp.sysvec_call_function.asm_sysvec_call_function.smp_call_function_many_cond.flush_tlb_mm_range.tlb_flush_mmu 51.35 -1.8 49.55 perf-profile.calltrace.cycles-pp.__madvise 51.14 -1.8 49.38 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__madvise 51.13 -1.8 49.37 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__madvise 51.11 -1.8 49.35 perf-profile.calltrace.cycles-pp.__x64_sys_madvise.do_syscall_64.entry_SYSCALL_64_after_hwframe.__madvise 51.11 -1.8 49.35 perf-profile.calltrace.cycles-pp.do_madvise.__x64_sys_madvise.do_syscall_64.entry_SYSCALL_64_after_hwframe.__madvise 50.10 -1.6 48.45 perf-profile.calltrace.cycles-pp.zap_page_range.do_madvise.__x64_sys_madvise.do_syscall_64.entry_SYSCALL_64_after_hwframe 48.04 -1.4 46.69 perf-profile.calltrace.cycles-pp.tlb_finish_mmu.zap_page_range.do_madvise.__x64_sys_madvise.do_syscall_64 47.80 -1.3 46.49 perf-profile.calltrace.cycles-pp.tlb_flush_mmu.tlb_finish_mmu.zap_page_range.do_madvise.__x64_sys_madvise 46.37 -1.1 45.24 perf-profile.calltrace.cycles-pp.flush_tlb_mm_range.tlb_flush_mmu.tlb_finish_mmu.zap_page_range.do_madvise 6.59 ± 2% -0.8 5.74 perf-profile.calltrace.cycles-pp.asm_sysvec_call_function.llist_add_batch.smp_call_function_many_cond.flush_tlb_mm_range.tlb_flush_mmu 44.91 -0.8 44.08 perf-profile.calltrace.cycles-pp.smp_call_function_many_cond.flush_tlb_mm_range.tlb_flush_mmu.tlb_finish_mmu.zap_page_range 7.49 ± 2% -0.5 7.01 ± 2% perf-profile.calltrace.cycles-pp.llist_reverse_order.flush_smp_call_function_queue.__sysvec_call_function.sysvec_call_function.asm_sysvec_call_function 1.77 -0.3 1.49 ± 2% perf-profile.calltrace.cycles-pp.default_send_IPI_mask_sequence_phys.smp_call_function_many_cond.flush_tlb_mm_range.tlb_flush_mmu.tlb_finish_mmu 1.05 -0.2 0.81 perf-profile.calltrace.cycles-pp.cpumask_next.smp_call_function_many_cond.flush_tlb_mm_range.tlb_flush_mmu.tlb_finish_mmu 1.07 -0.2 0.90 perf-profile.calltrace.cycles-pp.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault 0.98 -0.1 0.83 perf-profile.calltrace.cycles-pp.filemap_map_pages.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 0.66 -0.1 0.51 perf-profile.calltrace.cycles-pp._find_next_bit.cpumask_next.smp_call_function_many_cond.flush_tlb_mm_range.tlb_flush_mmu 1.06 ± 2% -0.1 0.98 ± 2% perf-profile.calltrace.cycles-pp.__default_send_IPI_dest_field.default_send_IPI_mask_sequence_phys.smp_call_function_many_cond.flush_tlb_mm_range.tlb_flush_mmu 0.00 +0.6 0.56 ± 3% perf-profile.calltrace.cycles-pp.cpumask_next.native_flush_tlb_others.flush_tlb_mm_range.ptep_clear_flush.wp_page_copy 0.00 +0.8 0.76 perf-profile.calltrace.cycles-pp.cpumask_next.smp_call_function_many_cond.flush_tlb_mm_range.ptep_clear_flush.wp_page_copy 0.00 +0.8 0.83 ± 2% perf-profile.calltrace.cycles-pp.__default_send_IPI_dest_field.default_send_IPI_mask_sequence_phys.smp_call_function_many_cond.flush_tlb_mm_range.ptep_clear_flush 0.00 +1.3 1.27 ± 2% perf-profile.calltrace.cycles-pp.default_send_IPI_mask_sequence_phys.smp_call_function_many_cond.flush_tlb_mm_range.ptep_clear_flush.wp_page_copy 20.24 ± 2% +1.7 21.94 ± 2% perf-profile.calltrace.cycles-pp.llist_add_batch.smp_call_function_many_cond.flush_tlb_mm_range.tlb_flush_mmu.tlb_finish_mmu 48.18 +1.8 50.02 perf-profile.calltrace.cycles-pp.testcase 47.77 +1.9 49.69 perf-profile.calltrace.cycles-pp.asm_exc_page_fault.testcase 47.66 +1.9 49.59 perf-profile.calltrace.cycles-pp.exc_page_fault.asm_exc_page_fault.testcase 47.63 +1.9 49.58 perf-profile.calltrace.cycles-pp.do_user_addr_fault.exc_page_fault.asm_exc_page_fault.testcase 0.00 +2.0 1.98 ± 3% perf-profile.calltrace.cycles-pp.native_flush_tlb_others.flush_tlb_mm_range.ptep_clear_flush.wp_page_copy.__handle_mm_fault 45.24 +2.2 47.47 perf-profile.calltrace.cycles-pp.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault.testcase 45.09 +2.3 47.34 perf-profile.calltrace.cycles-pp.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault 6.44 ± 3% +2.3 8.77 ± 3% perf-profile.calltrace.cycles-pp.__sysvec_call_function.sysvec_call_function.asm_sysvec_call_function.smp_call_function_many_cond.flush_tlb_mm_range 43.71 +2.5 46.23 perf-profile.calltrace.cycles-pp.wp_page_copy.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault 42.92 +2.7 45.57 perf-profile.calltrace.cycles-pp.ptep_clear_flush.wp_page_copy.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 42.89 +2.7 45.55 perf-profile.calltrace.cycles-pp.flush_tlb_mm_range.ptep_clear_flush.wp_page_copy.__handle_mm_fault.handle_mm_fault 6.31 ± 2% +4.3 10.62 ± 2% perf-profile.calltrace.cycles-pp.sysvec_call_function.asm_sysvec_call_function.llist_add_batch.smp_call_function_many_cond.flush_tlb_mm_range 0.00 +4.3 4.32 ± 4% perf-profile.calltrace.cycles-pp.sysvec_call_function.asm_sysvec_call_function.smp_call_function_many_cond.flush_tlb_mm_range.ptep_clear_flush 0.00 +4.5 4.53 ± 3% perf-profile.calltrace.cycles-pp.asm_sysvec_call_function.smp_call_function_many_cond.flush_tlb_mm_range.ptep_clear_flush.wp_page_copy 0.00 +5.6 5.56 ± 2% perf-profile.calltrace.cycles-pp.asm_sysvec_call_function.llist_add_batch.smp_call_function_many_cond.flush_tlb_mm_range.ptep_clear_flush 0.00 +21.7 21.66 ± 3% perf-profile.calltrace.cycles-pp.llist_add_batch.smp_call_function_many_cond.flush_tlb_mm_range.ptep_clear_flush.wp_page_copy 0.00 +42.5 42.48 perf-profile.calltrace.cycles-pp.smp_call_function_many_cond.flush_tlb_mm_range.ptep_clear_flush.wp_page_copy.__handle_mm_fault 41.89 -41.9 0.00 perf-profile.children.cycles-pp.on_each_cpu_cond_mask 30.59 ± 2% -6.4 24.19 ± 2% perf-profile.children.cycles-pp.flush_smp_call_function_queue 31.91 ± 2% -6.3 25.60 ± 2% perf-profile.children.cycles-pp.asm_sysvec_call_function 30.51 ± 2% -6.3 24.20 ± 2% perf-profile.children.cycles-pp.sysvec_call_function 30.12 ± 2% -6.3 23.84 ± 2% perf-profile.children.cycles-pp.__sysvec_call_function 19.62 ± 3% -5.7 13.88 ± 5% perf-profile.children.cycles-pp.flush_tlb_func 51.37 -1.8 49.57 perf-profile.children.cycles-pp.__madvise 51.33 -1.8 49.55 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 51.32 -1.8 49.54 perf-profile.children.cycles-pp.do_syscall_64 51.11 -1.8 49.35 perf-profile.children.cycles-pp.__x64_sys_madvise 51.11 -1.8 49.35 perf-profile.children.cycles-pp.do_madvise 50.11 -1.6 48.46 perf-profile.children.cycles-pp.zap_page_range 48.05 -1.4 46.69 perf-profile.children.cycles-pp.tlb_finish_mmu 47.82 -1.3 46.50 perf-profile.children.cycles-pp.tlb_flush_mmu 3.68 -0.8 2.84 ± 2% perf-profile.children.cycles-pp.default_send_IPI_mask_sequence_phys 9.19 ± 2% -0.8 8.42 perf-profile.children.cycles-pp.llist_reverse_order 2.65 ± 2% -0.6 2.04 ± 2% perf-profile.children.cycles-pp.native_flush_tlb_local 2.15 -0.3 1.82 ± 2% perf-profile.children.cycles-pp.__default_send_IPI_dest_field 1.08 -0.2 0.91 perf-profile.children.cycles-pp.do_fault 1.42 ± 7% -0.2 1.25 ± 6% perf-profile.children.cycles-pp.release_pages 0.64 ± 10% -0.2 0.49 ± 11% perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore 1.00 -0.2 0.85 perf-profile.children.cycles-pp.filemap_map_pages 0.53 -0.1 0.39 perf-profile.children.cycles-pp.asm_sysvec_call_function_single 0.51 -0.1 0.37 perf-profile.children.cycles-pp.sysvec_call_function_single 0.50 -0.1 0.36 perf-profile.children.cycles-pp.__sysvec_call_function_single 0.47 -0.1 0.38 perf-profile.children.cycles-pp.copy_page 0.47 ± 3% -0.1 0.39 ± 2% perf-profile.children.cycles-pp.unmap_page_range 0.49 -0.1 0.41 perf-profile.children.cycles-pp.next_uptodate_page 0.42 ± 2% -0.1 0.35 ± 3% perf-profile.children.cycles-pp.zap_pte_range 0.17 ± 6% -0.0 0.14 ± 4% perf-profile.children.cycles-pp.tlb_gather_mmu 0.12 ± 10% -0.0 0.10 ± 5% perf-profile.children.cycles-pp.sync_mm_rss 0.27 ± 2% -0.0 0.24 ± 2% perf-profile.children.cycles-pp.irq_exit_rcu 0.24 ± 3% -0.0 0.22 perf-profile.children.cycles-pp.error_entry 0.14 ± 4% -0.0 0.12 perf-profile.children.cycles-pp.sync_regs 0.13 -0.0 0.11 perf-profile.children.cycles-pp.__x86_indirect_thunk_rax 0.26 -0.0 0.24 perf-profile.children.cycles-pp.irqtime_account_irq 0.12 ± 4% -0.0 0.10 ± 7% perf-profile.children.cycles-pp.rwsem_down_read_slowpath 0.15 ± 3% -0.0 0.13 ± 2% perf-profile.children.cycles-pp.unlock_page 0.10 ± 3% -0.0 0.09 ± 8% perf-profile.children.cycles-pp.__x64_sys_munmap 0.10 ± 3% -0.0 0.09 ± 8% perf-profile.children.cycles-pp.__vm_munmap 0.10 -0.0 0.09 ± 8% perf-profile.children.cycles-pp.__munmap 0.10 -0.0 0.09 ± 8% perf-profile.children.cycles-pp.__do_munmap 0.09 ± 4% -0.0 0.08 ± 4% perf-profile.children.cycles-pp.unmap_region 0.09 -0.0 0.08 ± 5% perf-profile.children.cycles-pp.unmap_vmas 0.08 ± 5% -0.0 0.07 perf-profile.children.cycles-pp.do_set_pte 0.06 ± 5% -0.0 0.05 perf-profile.children.cycles-pp.page_add_file_rmap 0.06 -0.0 0.05 perf-profile.children.cycles-pp.___perf_sw_event 0.08 -0.0 0.07 perf-profile.children.cycles-pp.__perf_sw_event 1.54 ± 2% +0.1 1.66 ± 2% perf-profile.children.cycles-pp._find_next_bit 2.31 +0.1 2.44 perf-profile.children.cycles-pp.cpumask_next 89.30 +1.5 90.82 perf-profile.children.cycles-pp.flush_tlb_mm_range 48.44 +1.8 50.25 perf-profile.children.cycles-pp.testcase 48.01 +1.9 49.92 perf-profile.children.cycles-pp.asm_exc_page_fault 47.67 +1.9 49.61 perf-profile.children.cycles-pp.do_user_addr_fault 47.72 +1.9 49.67 perf-profile.children.cycles-pp.exc_page_fault 0.00 +2.0 2.02 ± 3% perf-profile.children.cycles-pp.native_flush_tlb_others 45.26 +2.2 47.48 perf-profile.children.cycles-pp.handle_mm_fault 45.10 +2.3 47.35 perf-profile.children.cycles-pp.__handle_mm_fault 43.72 +2.5 46.24 perf-profile.children.cycles-pp.wp_page_copy 42.92 +2.6 45.57 perf-profile.children.cycles-pp.ptep_clear_flush 36.85 ± 2% +7.5 44.33 ± 3% perf-profile.children.cycles-pp.llist_add_batch 16.95 ± 4% -5.1 11.81 ± 6% perf-profile.self.cycles-pp.flush_tlb_func 9.19 ± 2% -0.8 8.41 perf-profile.self.cycles-pp.llist_reverse_order 2.61 ± 2% -0.6 2.01 ± 2% perf-profile.self.cycles-pp.native_flush_tlb_local 2.14 -0.3 1.81 ± 2% perf-profile.self.cycles-pp.__default_send_IPI_dest_field 1.04 ± 5% -0.2 0.82 ± 7% perf-profile.self.cycles-pp.flush_tlb_mm_range 0.17 ± 37% -0.1 0.12 ± 7% perf-profile.self.cycles-pp.__handle_mm_fault 0.24 ± 2% -0.1 0.19 ± 3% perf-profile.self.cycles-pp.default_send_IPI_mask_sequence_phys 0.32 -0.0 0.27 perf-profile.self.cycles-pp.testcase 0.31 -0.0 0.27 ± 2% perf-profile.self.cycles-pp.copy_page 0.31 ± 2% -0.0 0.29 perf-profile.self.cycles-pp.next_uptodate_page 0.14 ± 4% -0.0 0.12 perf-profile.self.cycles-pp.sync_regs 0.16 ± 3% -0.0 0.14 perf-profile.self.cycles-pp.filemap_map_pages 0.08 ± 10% -0.0 0.06 ± 7% perf-profile.self.cycles-pp.sync_mm_rss 0.23 ± 2% +0.0 0.25 perf-profile.self.cycles-pp.find_next_bit 0.35 ± 2% +0.0 0.38 perf-profile.self.cycles-pp.cpumask_next 1.00 ± 2% +0.1 1.15 perf-profile.self.cycles-pp._find_next_bit 0.00 +1.0 1.05 ± 4% perf-profile.self.cycles-pp.native_flush_tlb_others 24.77 ± 2% +8.1 32.86 ± 3% perf-profile.self.cycles-pp.llist_add_batch 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. --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/lkp@lists.01.org Thanks, Oliver Sang