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Date: Wed, 13 Sep 2023 11:45:18 +0530
From: Raghavendra K T <raghavendra.kt@....com>
To: kernel test robot <oliver.sang@...el.com>
Cc: oe-lkp@...ts.linux.dev, lkp@...el.com, linux-mm@...ck.org,
linux-kernel@...r.kernel.org, ying.huang@...el.com,
feng.tang@...el.com, fengwei.yin@...el.com,
aubrey.li@...ux.intel.com, yu.c.chen@...el.com,
Ingo Molnar <mingo@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Mel Gorman <mgorman@...e.de>,
Andrew Morton <akpm@...ux-foundation.org>,
David Hildenbrand <david@...hat.com>, rppt@...nel.org,
Juri Lelli <juri.lelli@...hat.com>,
Vincent Guittot <vincent.guittot@...aro.org>,
Bharata B Rao <bharata@....com>,
Aithal Srikanth <sraithal@....com>,
Sapkal Swapnil <Swapnil.Sapkal@....com>,
K Prateek Nayak <kprateek.nayak@....com>
Subject: Re: [RFC PATCH V1 4/6] sched/numa: Increase tasks' access history
On 9/12/2023 7:54 PM, kernel test robot wrote:
>
>
> hi, Raghu,
>
> hope this third performance report for same one patch-set won't annoy you,
> and better, have some value to you.
Not at all. But thanks a lot and am rather more happy to see this
exhaustive results.
Because: It is easy to show see that patchset is increasing readability
of code or maintainance of code etc.,
while I try my best to see regressions are within noise level for some
corner cases and some benchmarks have improved noticeably, there is
always a room to miss something.
Reports like this, helps to boost confidence on patchset.
Also your cumulative (bisection) report also helped to evaluate
importance of each patch too..
>
> we won't send more autonuma-benchmark performance improvement reports for this
> patch-set, of course, unless you still hope we do.
>
> BTW, we will still send out performance/function regression reports if any.
>
> as in previous reports, we know that you want to see the performance impact
> of whole patch set, so let me give a full summary here:
>
> let me list how we apply your patch set again:
>
> 68cfe9439a1ba (linux-review/Raghavendra-K-T/sched-numa-Move-up-the-access-pid-reset-logic/20230829-141007) sched/numa: Allow scanning of shared VMAs
> af46f3c9ca2d1 sched/numa: Allow recently accessed VMAs to be scanned <-- we reported [1]
> 167773d1ddb5f sched/numa: Increase tasks' access history <---- for this report
> fc769221b2306 sched/numa: Remove unconditional scan logic using mm numa_scan_seq
> 1ef5cbb92bdb3 sched/numa: Add disjoint vma unconditional scan logic <--- we reported [2]
> 2a806eab1c2e1 sched/numa: Move up the access pid reset logic
> 2f88c8e802c8b (tip/sched/core) sched/eevdf/doc: Modify the documented knob to base_slice_ns as well
>
> [1] https://lore.kernel.org/all/202309102311.84b42068-oliver.sang@intel.com/
> [2] https://lore.kernel.org/all/202309121417.53f44ad6-oliver.sang@intel.com/
>
> below will only give out the comparison between 2f88c8e802c8b and 68cfe9439a1ba
> in a summary way, if you want detail data for more commits, or more comparison
> data, please let me know. Thanks!
>
> on
> test machine: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480CTDX (Sapphire Rapids) with 256G memory
>
> =========================================================================================
> compiler/cpufreq_governor/iterations/kconfig/rootfs/tbox_group/test/testcase:
> gcc-12/performance/4x/x86_64-rhel-8.3/debian-11.1-x86_64-20220510.cgz/lkp-spr-r02/numa01_THREAD_ALLOC/autonuma-benchmark
>
> 2f88c8e802c8b128 68cfe9439a1baa642e05883fa64
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 271.01 -26.4% 199.49 ± 3% autonuma-benchmark.numa01.seconds
> 76.28 -46.9% 40.49 ± 5% autonuma-benchmark.numa01_THREAD_ALLOC.seconds
> 8.11 -0.1% 8.10 autonuma-benchmark.numa02.seconds
> 1425 -30.1% 996.02 ± 2% autonuma-benchmark.time.elapsed_time
> 1425 -30.1% 996.02 ± 2% autonuma-benchmark.time.elapsed_time.max
>
>
> on
> test machine: 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz (Ice Lake) with 128G memory
>
> =========================================================================================
> compiler/cpufreq_governor/iterations/kconfig/rootfs/tbox_group/test/testcase:
> gcc-12/performance/4x/x86_64-rhel-8.3/debian-11.1-x86_64-20220510.cgz/lkp-icl-2sp6/numa01_THREAD_ALLOC/autonuma-benchmark
>
> 2f88c8e802c8b128 68cfe9439a1baa642e05883fa64
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 361.53 ± 6% -10.4% 323.83 ± 3% autonuma-benchmark.numa01.seconds
> 255.31 -60.1% 101.90 ± 2% autonuma-benchmark.numa01_THREAD_ALLOC.seconds
> 14.95 -4.6% 14.26 autonuma-benchmark.numa02.seconds
> 2530 ± 3% -30.3% 1763 ± 2% autonuma-benchmark.time.elapsed_time
> 2530 ± 3% -30.3% 1763 ± 2% autonuma-benchmark.time.elapsed_time.max
>
>
This gives me fair confidence that we are able to get a decent
improvement overall.
> below is the auto-generated report part, FYI.
>
> Hello,
>
> kernel test robot noticed a -17.6% improvement of autonuma-benchmark.numa01.seconds on:
>
>
> commit: 167773d1ddb5ffdd944f851f2cbdd4e65425a358 ("[RFC PATCH V1 4/6] sched/numa: Increase tasks' access history")
> url: https://github.com/intel-lab-lkp/linux/commits/Raghavendra-K-T/sched-numa-Move-up-the-access-pid-reset-logic/20230829-141007
> base: https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git 2f88c8e802c8b128a155976631f4eb2ce4f3c805
> patch link: https://lore.kernel.org/all/cf200aaf594caae68350219fa1f781d64136fa2c.1693287931.git.raghavendra.kt@amd.com/
> patch subject: [RFC PATCH V1 4/6] sched/numa: Increase tasks' access history
>
> testcase: autonuma-benchmark
> test machine: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480CTDX (Sapphire Rapids) with 256G memory
> parameters:
>
> iterations: 4x
> test: numa01_THREAD_ALLOC
> cpufreq_governor: performance
>
>
> In addition to that, the commit also has significant impact on the following tests:
>
> +------------------+----------------------------------------------------------------------------------------------------+
> | testcase: change | autonuma-benchmark: autonuma-benchmark.numa01.seconds -15.4% improvement |
> | test machine | 96 threads 2 sockets Intel(R) Xeon(R) Platinum 8260L CPU @ 2.40GHz (Cascade Lake) with 128G memory |
> | test parameters | cpufreq_governor=performance |
> | | iterations=4x |
> | | test=numa01_THREAD_ALLOC |
> +------------------+----------------------------------------------------------------------------------------------------+
> | testcase: change | autonuma-benchmark: autonuma-benchmark.numa01.seconds -14.8% improvement |
> | test machine | 96 threads 2 sockets Intel(R) Xeon(R) Platinum 8260L CPU @ 2.40GHz (Cascade Lake) with 128G memory |
> | test parameters | cpufreq_governor=performance |
> | | iterations=4x |
> | | test=_INVERSE_BIND |
> +------------------+----------------------------------------------------------------------------------------------------+
> | testcase: change | autonuma-benchmark: autonuma-benchmark.numa01_THREAD_ALLOC.seconds -10.7% improvement |
> | test machine | 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz (Ice Lake) with 128G memory |
> | test parameters | cpufreq_governor=performance |
> | | iterations=4x |
> | | test=numa01_THREAD_ALLOC |
> +------------------+----------------------------------------------------------------------------------------------------+
>
>
Will go through this too.
>
>
> Details are as below:
> -------------------------------------------------------------------------------------------------->
>
>
> The kernel config and materials to reproduce are available at:
> https://download.01.org/0day-ci/archive/20230912/202309122114.b9e08a43-oliver.sang@intel.com
>
> =========================================================================================
> compiler/cpufreq_governor/iterations/kconfig/rootfs/tbox_group/test/testcase:
> gcc-12/performance/4x/x86_64-rhel-8.3/debian-11.1-x86_64-20220510.cgz/lkp-spr-r02/numa01_THREAD_ALLOC/autonuma-benchmark
>
> commit:
> fc769221b2 ("sched/numa: Remove unconditional scan logic using mm numa_scan_seq")
> 167773d1dd ("sched/numa: Increase tasks' access history")
>
> fc769221b23064c0 167773d1ddb5ffdd944f851f2cb
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 105.67 ± 8% -20.3% 84.17 ± 10% perf-c2c.HITM.remote
> 1.856e+10 ± 7% -18.8% 1.508e+10 ± 8% cpuidle..time
> 19025348 ± 7% -18.6% 15481744 ± 8% cpuidle..usage
> 0.00 ± 28% +0.0 0.01 ± 10% mpstat.cpu.all.iowait%
> 0.10 ± 2% -0.0 0.09 ± 4% mpstat.cpu.all.soft%
> 1443 ± 2% -14.2% 1238 ± 4% uptime.boot
> 26312 ± 5% -12.8% 22935 ± 5% uptime.idle
> 8774783 ± 7% -19.0% 7104495 ± 8% turbostat.C1E
> 10147966 ± 7% -18.4% 8280745 ± 8% turbostat.C6
> 3.225e+08 ± 2% -14.1% 2.77e+08 ± 4% turbostat.IRQ
> 2.81 ± 24% +3.5 6.35 ± 24% turbostat.PKG_%
> 638.24 +2.0% 650.74 turbostat.PkgWatt
> 57.57 +10.9% 63.85 ± 2% turbostat.RAMWatt
> 271.39 ± 2% -17.6% 223.53 ± 5% autonuma-benchmark.numa01.seconds
> 1401 ± 2% -14.6% 1197 ± 4% autonuma-benchmark.time.elapsed_time
> 1401 ± 2% -14.6% 1197 ± 4% autonuma-benchmark.time.elapsed_time.max
> 1088153 ± 2% -14.1% 934904 ± 6% autonuma-benchmark.time.involuntary_context_switches
> 3953 -2.6% 3852 ± 2% autonuma-benchmark.time.system_time
> 287110 -14.5% 245511 ± 4% autonuma-benchmark.time.user_time
> 22704 ± 7% +15.9% 26303 ± 8% autonuma-benchmark.time.voluntary_context_switches
> 191.10 ± 64% +94.9% 372.49 ± 7% perf-sched.wait_and_delay.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
> 4.09 ± 49% +85.6% 7.59 ± 14% perf-sched.wait_and_delay.max.ms.__cond_resched.generic_perform_write.generic_file_write_iter.vfs_write.ksys_write
> 1.99 ± 40% +99.8% 3.97 ± 30% perf-sched.wait_time.avg.ms.__cond_resched.__kmem_cache_alloc_node.kmalloc_trace.vmstat_start.seq_read_iter
> 14.18 ±158% -82.6% 2.47 ± 22% perf-sched.wait_time.avg.ms.__cond_resched.unmap_vmas.unmap_region.do_vmi_align_munmap.do_vmi_munmap
> 189.39 ± 65% +96.5% 372.20 ± 7% perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
> 2.18 ± 21% -33.3% 1.46 ± 41% perf-sched.wait_time.avg.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
> 3.22 ± 32% -73.0% 0.87 ± 81% perf-sched.wait_time.max.ms.__cond_resched.__kmem_cache_alloc_node.kmalloc_trace.single_open.do_dentry_open
> 4.73 ± 20% +60.6% 7.59 ± 14% perf-sched.wait_time.max.ms.__cond_resched.generic_perform_write.generic_file_write_iter.vfs_write.ksys_write
> 9.61 ± 30% -32.8% 6.46 ± 16% perf-sched.wait_time.max.ms.__cond_resched.lock_mm_and_find_vma.do_user_addr_fault.exc_page_fault.asm_exc_page_fault
> 13.57 ± 65% -60.2% 5.40 ± 24% perf-sched.wait_time.max.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
> 6040567 -6.2% 5667640 proc-vmstat.numa_hit
> 32278 ± 7% +51.7% 48955 ± 18% proc-vmstat.numa_huge_pte_updates
> 4822780 -7.5% 4459553 proc-vmstat.numa_local
> 3187796 ± 9% +73.2% 5521800 ± 16% proc-vmstat.numa_pages_migrated
> 16792299 ± 7% +50.8% 25319315 ± 18% proc-vmstat.numa_pte_updates
> 6242814 -8.5% 5711173 ± 2% proc-vmstat.pgfault
> 3187796 ± 9% +73.2% 5521800 ± 16% proc-vmstat.pgmigrate_success
> 254872 ± 2% -12.3% 223591 ± 5% proc-vmstat.pgreuse
> 6151 ± 9% +74.2% 10717 ± 16% proc-vmstat.thp_migration_success
> 4201550 -13.7% 3627350 ± 3% proc-vmstat.unevictable_pgs_scanned
> 1.823e+08 ± 2% -15.2% 1.547e+08 ± 5% sched_debug.cfs_rq:/.avg_vruntime.avg
> 1.872e+08 ± 2% -15.3% 1.585e+08 ± 5% sched_debug.cfs_rq:/.avg_vruntime.max
> 1.423e+08 ± 4% -14.0% 1.224e+08 ± 3% sched_debug.cfs_rq:/.avg_vruntime.min
> 4320209 ± 8% -18.1% 3537344 ± 8% sched_debug.cfs_rq:/.avg_vruntime.stddev
> 3349 ± 40% +58.3% 5300 ± 27% sched_debug.cfs_rq:/.load_avg.max
> 1.823e+08 ± 2% -15.2% 1.547e+08 ± 5% sched_debug.cfs_rq:/.min_vruntime.avg
> 1.872e+08 ± 2% -15.3% 1.585e+08 ± 5% sched_debug.cfs_rq:/.min_vruntime.max
> 1.423e+08 ± 4% -14.0% 1.224e+08 ± 3% sched_debug.cfs_rq:/.min_vruntime.min
> 4320208 ± 8% -18.1% 3537344 ± 8% sched_debug.cfs_rq:/.min_vruntime.stddev
> 1852009 ± 3% -13.2% 1607461 ± 2% sched_debug.cpu.avg_idle.avg
> 751880 ± 2% -15.1% 638555 ± 4% sched_debug.cpu.avg_idle.stddev
> 725827 ± 2% -14.1% 623617 ± 4% sched_debug.cpu.clock.avg
> 726857 ± 2% -14.1% 624498 ± 4% sched_debug.cpu.clock.max
> 724740 ± 2% -14.1% 622692 ± 4% sched_debug.cpu.clock.min
> 717315 ± 2% -14.1% 616349 ± 4% sched_debug.cpu.clock_task.avg
> 719648 ± 2% -14.1% 618089 ± 4% sched_debug.cpu.clock_task.max
> 698681 ± 2% -14.2% 599424 ± 4% sched_debug.cpu.clock_task.min
> 1839 ± 8% -18.1% 1506 ± 7% sched_debug.cpu.clock_task.stddev
> 27352 -9.6% 24731 ± 2% sched_debug.cpu.curr->pid.max
> 293258 ± 5% -16.4% 245303 ± 7% sched_debug.cpu.max_idle_balance_cost.stddev
> -14.96 +73.6% -25.98 sched_debug.cpu.nr_uninterruptible.min
> 6.27 ± 4% +18.7% 7.44 ± 6% sched_debug.cpu.nr_uninterruptible.stddev
> 724723 ± 2% -14.1% 622678 ± 4% sched_debug.cpu_clk
> 723514 ± 2% -14.1% 621468 ± 4% sched_debug.ktime
> 725604 ± 2% -14.1% 623550 ± 4% sched_debug.sched_clk
> 29.50 ± 3% +24.9% 36.83 ± 9% perf-stat.i.MPKI
> 3.592e+08 +5.7% 3.797e+08 ± 2% perf-stat.i.branch-instructions
> 1823514 +3.7% 1891464 perf-stat.i.branch-misses
> 28542234 ± 3% +22.0% 34809605 ± 10% perf-stat.i.cache-misses
> 72486859 ± 3% +19.6% 86713561 ± 7% perf-stat.i.cache-references
> 224.48 +3.2% 231.63 perf-stat.i.cpu-migrations
> 145250 ± 2% -10.8% 129549 ± 4% perf-stat.i.cycles-between-cache-misses
> 0.08 ± 5% -0.0 0.07 ± 10% perf-stat.i.dTLB-load-miss-rate%
> 272123 ± 6% -15.0% 231302 ± 10% perf-stat.i.dTLB-load-misses
> 4.515e+08 +4.7% 4.729e+08 ± 2% perf-stat.i.dTLB-loads
> 995784 +1.9% 1014848 perf-stat.i.dTLB-store-misses
> 1.844e+08 +1.5% 1.871e+08 perf-stat.i.dTLB-stores
> 1.711e+09 +5.0% 1.797e+09 ± 2% perf-stat.i.instructions
> 3.25 +8.3% 3.52 ± 3% perf-stat.i.metric.M/sec
> 4603 +6.7% 4912 ± 3% perf-stat.i.minor-faults
> 488266 ± 2% +25.0% 610436 ± 6% perf-stat.i.node-load-misses
> 618022 ± 4% +13.4% 701130 ± 5% perf-stat.i.node-loads
> 4603 +6.7% 4912 ± 3% perf-stat.i.page-faults
> 39.67 ± 2% +16.0% 46.04 ± 6% perf-stat.overall.MPKI
> 375.84 -4.9% 357.36 ± 2% perf-stat.overall.cpi
> 24383 ± 3% -19.0% 19742 ± 12% perf-stat.overall.cycles-between-cache-misses
> 0.06 ± 7% -0.0 0.05 ± 10% perf-stat.overall.dTLB-load-miss-rate%
> 0.00 +5.2% 0.00 ± 2% perf-stat.overall.ipc
> 41.99 ± 2% +2.8 44.83 ± 4% perf-stat.overall.node-load-miss-rate%
> 3.355e+08 +6.3% 3.567e+08 ± 2% perf-stat.ps.branch-instructions
> 1758832 +4.4% 1835699 perf-stat.ps.branch-misses
> 24888631 ± 3% +25.6% 31268733 ± 12% perf-stat.ps.cache-misses
> 64007362 ± 3% +22.5% 78424799 ± 8% perf-stat.ps.cache-references
> 221.69 +3.0% 228.32 perf-stat.ps.cpu-migrations
> 4.273e+08 +5.2% 4.495e+08 ± 2% perf-stat.ps.dTLB-loads
> 992569 +1.8% 1010389 perf-stat.ps.dTLB-store-misses
> 1.818e+08 +1.6% 1.847e+08 perf-stat.ps.dTLB-stores
> 1.613e+09 +5.5% 1.701e+09 ± 2% perf-stat.ps.instructions
> 4331 +7.2% 4644 ± 3% perf-stat.ps.minor-faults
> 477740 ± 2% +26.3% 603330 ± 7% perf-stat.ps.node-load-misses
> 660610 ± 5% +12.3% 741896 ± 6% perf-stat.ps.node-loads
> 4331 +7.2% 4644 ± 3% perf-stat.ps.page-faults
> 2.264e+12 -10.0% 2.038e+12 ± 3% perf-stat.total.instructions
> 1.16 ± 20% -0.6 0.59 ± 47% perf-profile.calltrace.cycles-pp.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
> 1.07 ± 20% -0.5 0.54 ± 47% perf-profile.calltrace.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
> 1.96 ± 25% -0.7 1.27 ± 23% perf-profile.children.cycles-pp.task_mm_cid_work
> 1.16 ± 20% -0.5 0.67 ± 19% perf-profile.children.cycles-pp.worker_thread
> 1.07 ± 20% -0.5 0.61 ± 21% perf-profile.children.cycles-pp.process_one_work
> 0.84 ± 44% -0.4 0.43 ± 25% perf-profile.children.cycles-pp.evlist__id2evsel
> 0.58 ± 34% -0.2 0.33 ± 21% perf-profile.children.cycles-pp.do_mprotect_pkey
> 0.54 ± 26% -0.2 0.30 ± 23% perf-profile.children.cycles-pp.drm_fb_helper_damage_work
> 0.54 ± 26% -0.2 0.30 ± 23% perf-profile.children.cycles-pp.drm_fbdev_generic_helper_fb_dirty
> 0.58 ± 34% -0.2 0.34 ± 22% perf-profile.children.cycles-pp.__x64_sys_mprotect
> 0.34 ± 23% -0.2 0.12 ± 64% perf-profile.children.cycles-pp.drm_gem_vmap_unlocked
> 0.34 ± 23% -0.2 0.12 ± 64% perf-profile.children.cycles-pp.drm_gem_vmap
> 0.34 ± 23% -0.2 0.12 ± 64% perf-profile.children.cycles-pp.drm_gem_shmem_object_vmap
> 0.34 ± 23% -0.2 0.12 ± 64% perf-profile.children.cycles-pp.drm_gem_shmem_vmap_locked
> 0.55 ± 32% -0.2 0.33 ± 18% perf-profile.children.cycles-pp.__wp_page_copy_user
> 0.50 ± 35% -0.2 0.28 ± 21% perf-profile.children.cycles-pp.mprotect_fixup
> 0.28 ± 25% -0.2 0.08 ±101% perf-profile.children.cycles-pp.drm_gem_shmem_get_pages_locked
> 0.28 ± 25% -0.2 0.08 ±101% perf-profile.children.cycles-pp.drm_gem_get_pages
> 0.28 ± 25% -0.2 0.08 ±102% perf-profile.children.cycles-pp.shmem_read_folio_gfp
> 0.28 ± 25% -0.2 0.08 ±102% perf-profile.children.cycles-pp.drm_gem_shmem_get_pages
> 0.62 ± 15% -0.2 0.43 ± 16% perf-profile.children.cycles-pp.try_to_wake_up
> 0.25 ± 19% -0.2 0.08 ± 84% perf-profile.children.cycles-pp.drm_client_buffer_vmap
> 0.44 ± 19% -0.2 0.28 ± 31% perf-profile.children.cycles-pp.filemap_get_entry
> 0.39 ± 14% -0.1 0.26 ± 22% perf-profile.children.cycles-pp.perf_event_mmap
> 0.38 ± 13% -0.1 0.25 ± 23% perf-profile.children.cycles-pp.perf_event_mmap_event
> 0.22 ± 22% -0.1 0.11 ± 25% perf-profile.children.cycles-pp.lru_add_drain_cpu
> 0.24 ± 21% -0.1 0.14 ± 36% perf-profile.children.cycles-pp.do_open_execat
> 0.24 ± 13% -0.1 0.14 ± 42% perf-profile.children.cycles-pp.arch_do_signal_or_restart
> 0.22 ± 30% -0.1 0.13 ± 10% perf-profile.children.cycles-pp.wake_up_q
> 0.14 ± 17% -0.1 0.05 ±101% perf-profile.children.cycles-pp.open_exec
> 0.16 ± 21% -0.1 0.07 ± 51% perf-profile.children.cycles-pp.path_init
> 0.23 ± 30% -0.1 0.15 ± 22% perf-profile.children.cycles-pp.ttwu_do_activate
> 0.26 ± 11% -0.1 0.18 ± 20% perf-profile.children.cycles-pp.perf_iterate_sb
> 0.14 ± 50% -0.1 0.07 ± 12% perf-profile.children.cycles-pp.security_inode_getattr
> 0.18 ± 27% -0.1 0.11 ± 20% perf-profile.children.cycles-pp.select_task_rq
> 0.14 ± 21% -0.1 0.08 ± 29% perf-profile.children.cycles-pp.get_unmapped_area
> 0.10 ± 19% -0.1 0.04 ± 73% perf-profile.children.cycles-pp.expand_downwards
> 0.18 ± 16% -0.1 0.13 ± 26% perf-profile.children.cycles-pp.__d_alloc
> 0.09 ± 15% -0.1 0.04 ± 71% perf-profile.children.cycles-pp.anon_vma_clone
> 0.13 ± 36% -0.1 0.08 ± 19% perf-profile.children.cycles-pp.file_free_rcu
> 0.08 ± 23% -0.0 0.03 ±101% perf-profile.children.cycles-pp.__legitimize_mnt
> 0.09 ± 15% -0.0 0.04 ± 45% perf-profile.children.cycles-pp.__pipe
> 1.92 ± 26% -0.7 1.24 ± 23% perf-profile.self.cycles-pp.task_mm_cid_work
> 0.82 ± 43% -0.4 0.42 ± 24% perf-profile.self.cycles-pp.evlist__id2evsel
> 0.42 ± 39% -0.2 0.22 ± 19% perf-profile.self.cycles-pp.evsel__read_counter
> 0.27 ± 24% -0.2 0.10 ± 56% perf-profile.self.cycles-pp.filemap_get_entry
> 0.15 ± 48% -0.1 0.06 ± 11% perf-profile.self.cycles-pp.ksys_read
> 0.10 ± 34% -0.1 0.03 ±101% perf-profile.self.cycles-pp.enqueue_task_fair
> 0.13 ± 36% -0.1 0.08 ± 19% perf-profile.self.cycles-pp.file_free_rcu
>
>
> ***************************************************************************************************
> lkp-csl-2sp3: 96 threads 2 sockets Intel(R) Xeon(R) Platinum 8260L CPU @ 2.40GHz (Cascade Lake) with 128G memory
> =========================================================================================
> compiler/cpufreq_governor/iterations/kconfig/rootfs/tbox_group/test/testcase:
> gcc-12/performance/4x/x86_64-rhel-8.3/debian-11.1-x86_64-20220510.cgz/lkp-csl-2sp3/numa01_THREAD_ALLOC/autonuma-benchmark
>
> commit:
> fc769221b2 ("sched/numa: Remove unconditional scan logic using mm numa_scan_seq")
> 167773d1dd ("sched/numa: Increase tasks' access history")
>
> fc769221b23064c0 167773d1ddb5ffdd944f851f2cb
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 2.309e+10 ± 6% -27.8% 1.668e+10 ± 5% cpuidle..time
> 23855797 ± 6% -27.9% 17210884 ± 5% cpuidle..usage
> 2514 -11.9% 2215 uptime.boot
> 27543 ± 5% -23.1% 21189 ± 5% uptime.idle
> 9.80 ± 5% -1.8 8.05 ± 6% mpstat.cpu.all.idle%
> 0.01 ± 6% +0.0 0.01 ± 17% mpstat.cpu.all.iowait%
> 0.08 -0.0 0.07 ± 2% mpstat.cpu.all.soft%
> 845597 ± 12% -26.1% 624549 ± 19% numa-numastat.node0.other_node
> 2990301 ± 6% -13.1% 2598273 ± 4% numa-numastat.node1.local_node
> 471614 ± 21% +45.0% 684016 ± 18% numa-numastat.node1.other_node
> 845597 ± 12% -26.1% 624549 ± 19% numa-vmstat.node0.numa_other
> 4073 ±106% -82.5% 711.67 ± 23% numa-vmstat.node1.nr_mapped
> 2989568 ± 6% -13.1% 2597798 ± 4% numa-vmstat.node1.numa_local
> 471614 ± 21% +45.0% 684016 ± 18% numa-vmstat.node1.numa_other
> 375.07 ± 4% -15.4% 317.31 ± 2% autonuma-benchmark.numa01.seconds
> 2462 -12.2% 2162 autonuma-benchmark.time.elapsed_time
> 2462 -12.2% 2162 autonuma-benchmark.time.elapsed_time.max
> 1354545 -12.9% 1179617 autonuma-benchmark.time.involuntary_context_switches
> 3212023 -6.5% 3001966 autonuma-benchmark.time.minor_page_faults
> 8377 +2.3% 8572 autonuma-benchmark.time.percent_of_cpu_this_job_got
> 199714 -10.4% 179020 autonuma-benchmark.time.user_time
> 50675 ± 8% -19.0% 41038 ± 12% turbostat.C1
> 183835 ± 7% -17.6% 151526 ± 6% turbostat.C1E
> 23556011 ± 6% -28.0% 16965247 ± 5% turbostat.C6
> 9.72 ± 5% -1.7 7.99 ± 6% turbostat.C6%
> 9.54 ± 6% -18.1% 7.81 ± 6% turbostat.CPU%c1
> 2.404e+08 -12.0% 2.116e+08 turbostat.IRQ
> 280.51 +1.2% 283.99 turbostat.PkgWatt
> 63.94 +6.7% 68.23 turbostat.RAMWatt
> 282375 ± 3% -9.8% 254565 ± 7% proc-vmstat.numa_hint_faults
> 217705 ± 6% -12.6% 190234 ± 8% proc-vmstat.numa_hint_faults_local
> 7081835 -7.9% 6524239 proc-vmstat.numa_hit
> 107927 ± 10% +16.6% 125887 proc-vmstat.numa_huge_pte_updates
> 5764595 -9.5% 5215673 proc-vmstat.numa_local
> 7379523 ± 15% +25.7% 9272505 ± 4% proc-vmstat.numa_pages_migrated
> 55530575 ± 10% +16.5% 64669707 proc-vmstat.numa_pte_updates
> 8852860 -9.3% 8028738 proc-vmstat.pgfault
> 7379523 ± 15% +25.7% 9272505 ± 4% proc-vmstat.pgmigrate_success
> 393902 -9.6% 356099 proc-vmstat.pgreuse
> 14358 ± 15% +25.8% 18064 ± 5% proc-vmstat.thp_migration_success
> 18273792 -11.5% 16166144 proc-vmstat.unevictable_pgs_scanned
> 1.45e+08 -8.7% 1.325e+08 sched_debug.cfs_rq:/.avg_vruntime.max
> 3995873 -14.0% 3437625 ± 2% sched_debug.cfs_rq:/.avg_vruntime.stddev
> 0.23 ± 3% -8.6% 0.21 ± 6% sched_debug.cfs_rq:/.h_nr_running.stddev
> 1.45e+08 -8.7% 1.325e+08 sched_debug.cfs_rq:/.min_vruntime.max
> 3995873 -14.0% 3437625 ± 2% sched_debug.cfs_rq:/.min_vruntime.stddev
> 0.53 ± 71% +195.0% 1.56 ± 37% sched_debug.cfs_rq:/.removed.load_avg.avg
> 25.54 ± 2% +13.0% 28.87 sched_debug.cfs_rq:/.removed.load_avg.max
> 3.40 ± 35% +85.6% 6.32 ± 17% sched_debug.cfs_rq:/.removed.load_avg.stddev
> 0.16 ± 74% +275.6% 0.59 ± 39% sched_debug.cfs_rq:/.removed.runnable_avg.avg
> 8.03 ± 31% +84.9% 14.84 sched_debug.cfs_rq:/.removed.runnable_avg.max
> 1.02 ± 44% +154.3% 2.59 ± 16% sched_debug.cfs_rq:/.removed.runnable_avg.stddev
> 0.16 ± 74% +275.6% 0.59 ± 39% sched_debug.cfs_rq:/.removed.util_avg.avg
> 8.03 ± 31% +84.9% 14.84 sched_debug.cfs_rq:/.removed.util_avg.max
> 1.02 ± 44% +154.3% 2.59 ± 16% sched_debug.cfs_rq:/.removed.util_avg.stddev
> 146.33 ± 4% -12.0% 128.80 ± 8% sched_debug.cfs_rq:/.util_avg.stddev
> 361281 ± 5% -13.6% 312127 ± 3% sched_debug.cpu.avg_idle.stddev
> 1229022 -9.9% 1107544 sched_debug.cpu.clock.avg
> 1229436 -9.9% 1107919 sched_debug.cpu.clock.max
> 1228579 -9.9% 1107137 sched_debug.cpu.clock.min
> 248.12 ± 6% -8.9% 226.15 ± 2% sched_debug.cpu.clock.stddev
> 1201071 -9.7% 1084858 sched_debug.cpu.clock_task.avg
> 1205361 -9.7% 1088445 sched_debug.cpu.clock_task.max
> 1190139 -9.7% 1074355 sched_debug.cpu.clock_task.min
> 156325 ± 4% -21.3% 123055 ± 3% sched_debug.cpu.max_idle_balance_cost.stddev
> 0.00 ± 5% -8.8% 0.00 ± 2% sched_debug.cpu.next_balance.stddev
> 0.23 ± 3% -6.9% 0.21 ± 4% sched_debug.cpu.nr_running.stddev
> 22855 -11.9% 20146 ± 2% sched_debug.cpu.nr_switches.avg
> 0.00 ± 74% +301.6% 0.00 ± 41% sched_debug.cpu.nr_uninterruptible.avg
> -20.99 +50.9% -31.67 sched_debug.cpu.nr_uninterruptible.min
> 1228564 -9.9% 1107124 sched_debug.cpu_clk
> 1227997 -9.9% 1106556 sched_debug.ktime
> 0.00 ± 70% +66.1% 0.00 sched_debug.rt_rq:.rt_nr_migratory.avg
> 0.02 ± 70% +66.1% 0.03 sched_debug.rt_rq:.rt_nr_migratory.max
> 0.00 ± 70% +66.1% 0.00 sched_debug.rt_rq:.rt_nr_migratory.stddev
> 0.00 ± 70% +66.1% 0.00 sched_debug.rt_rq:.rt_nr_running.avg
> 0.02 ± 70% +66.1% 0.03 sched_debug.rt_rq:.rt_nr_running.max
> 0.00 ± 70% +66.1% 0.00 sched_debug.rt_rq:.rt_nr_running.stddev
> 1229125 -9.9% 1107673 sched_debug.sched_clk
> 36.73 +9.2% 40.12 perf-stat.i.MPKI
> 1.156e+08 +0.9% 1.166e+08 perf-stat.i.branch-instructions
> 1.41 +0.1 1.49 perf-stat.i.branch-miss-rate%
> 1755317 +6.4% 1868497 perf-stat.i.branch-misses
> 65.90 +2.6 68.53 perf-stat.i.cache-miss-rate%
> 13292768 +13.0% 15016556 perf-stat.i.cache-misses
> 20180664 +9.2% 22041180 perf-stat.i.cache-references
> 1620 -2.0% 1588 perf-stat.i.context-switches
> 492.61 +2.2% 503.60 perf-stat.i.cpi
> 2.624e+11 +2.3% 2.685e+11 perf-stat.i.cpu-cycles
> 20261 -9.6% 18315 perf-stat.i.cycles-between-cache-misses
> 0.08 ± 5% -0.0 0.07 perf-stat.i.dTLB-load-miss-rate%
> 114641 ± 5% -6.6% 107104 perf-stat.i.dTLB-load-misses
> 0.24 +0.0 0.25 perf-stat.i.dTLB-store-miss-rate%
> 202887 +3.4% 209829 perf-stat.i.dTLB-store-misses
> 479259 ± 2% -9.8% 432243 ± 6% perf-stat.i.iTLB-load-misses
> 272948 ± 5% -16.4% 228065 ± 3% perf-stat.i.iTLB-loads
> 5.888e+08 +0.8% 5.938e+08 perf-stat.i.instructions
> 1349 +15.8% 1561 ± 2% perf-stat.i.instructions-per-iTLB-miss
> 2.73 +2.3% 2.80 perf-stat.i.metric.GHz
> 3510 +2.9% 3612 perf-stat.i.minor-faults
> 302696 ± 4% +8.0% 327055 perf-stat.i.node-load-misses
> 5025469 ± 3% +16.0% 5831348 ± 2% perf-stat.i.node-store-misses
> 6419781 +11.7% 7171575 perf-stat.i.node-stores
> 3510 +2.9% 3613 perf-stat.i.page-faults
> 34.43 +8.1% 37.21 perf-stat.overall.MPKI
> 1.51 +0.1 1.59 perf-stat.overall.branch-miss-rate%
> 66.31 +2.2 68.53 perf-stat.overall.cache-miss-rate%
> 19793 -9.3% 17950 perf-stat.overall.cycles-between-cache-misses
> 0.07 ± 5% -0.0 0.07 perf-stat.overall.dTLB-load-miss-rate%
> 0.23 +0.0 0.24 perf-stat.overall.dTLB-store-miss-rate%
> 1227 ± 2% +12.1% 1376 ± 6% perf-stat.overall.instructions-per-iTLB-miss
> 1729818 +6.4% 1840962 perf-stat.ps.branch-misses
> 13346402 +12.6% 15031113 perf-stat.ps.cache-misses
> 20127330 +9.0% 21934543 perf-stat.ps.cache-references
> 1624 -2.1% 1590 perf-stat.ps.context-switches
> 2.641e+11 +2.1% 2.698e+11 perf-stat.ps.cpu-cycles
> 113287 ± 5% -6.8% 105635 perf-stat.ps.dTLB-load-misses
> 203569 +3.2% 210036 perf-stat.ps.dTLB-store-misses
> 476376 ± 2% -9.8% 429901 ± 6% perf-stat.ps.iTLB-load-misses
> 259293 ± 5% -16.3% 217088 ± 3% perf-stat.ps.iTLB-loads
> 3465 +3.1% 3571 perf-stat.ps.minor-faults
> 299695 ± 4% +8.3% 324433 perf-stat.ps.node-load-misses
> 5044747 ± 3% +15.7% 5834322 ± 2% perf-stat.ps.node-store-misses
> 6459846 +11.3% 7189821 perf-stat.ps.node-stores
> 3465 +3.1% 3571 perf-stat.ps.page-faults
> 1.44e+12 -11.4% 1.275e+12 perf-stat.total.instructions
> 0.47 ± 58% +593.5% 3.27 ± 81% perf-sched.sch_delay.avg.ms.__cond_resched.__wait_for_common.wait_for_completion_state.kernel_clone.__x64_sys_vfork
> 0.37 ±124% +352.3% 1.67 ± 58% perf-sched.sch_delay.avg.ms.__cond_resched.copy_strings.isra.0.do_execveat_common
> 0.96 ± 74% -99.0% 0.01 ±141% perf-sched.sch_delay.avg.ms.__cond_resched.dput.step_into.link_path_walk.part
> 2.01 ± 79% -100.0% 0.00 perf-sched.sch_delay.avg.ms.__cond_resched.kmem_cache_alloc.vm_area_alloc.__install_special_mapping.map_vdso
> 1.35 ± 72% -69.8% 0.41 ± 80% perf-sched.sch_delay.avg.ms.__cond_resched.kmem_cache_alloc.vm_area_dup.dup_mmap.dup_mm
> 0.17 ± 18% -26.5% 0.13 ± 5% perf-sched.sch_delay.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
> 0.26 ± 16% -39.0% 0.16 ± 7% perf-sched.sch_delay.avg.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
> 2.57 ± 65% +1027.2% 28.92 ±120% perf-sched.sch_delay.max.ms.__cond_resched.__wait_for_common.wait_for_completion_state.kernel_clone.__x64_sys_vfork
> 0.38 ±119% +669.3% 2.92 ± 19% perf-sched.sch_delay.max.ms.__cond_resched.copy_strings.isra.0.do_execveat_common
> 0.51 ±141% +234.9% 1.71 ± 69% perf-sched.sch_delay.max.ms.__cond_resched.down_write_killable.vm_mmap_pgoff.elf_map.load_elf_binary
> 1.63 ± 74% -98.9% 0.02 ±141% perf-sched.sch_delay.max.ms.__cond_resched.dput.step_into.link_path_walk.part
> 3.38 ± 12% -55.7% 1.50 ± 78% perf-sched.sch_delay.max.ms.__cond_resched.filemap_read.__kernel_read.search_binary_handler.exec_binprm
> 2.37 ± 68% -100.0% 0.00 perf-sched.sch_delay.max.ms.__cond_resched.kmem_cache_alloc.vm_area_alloc.__install_special_mapping.map_vdso
> 2.05 ± 62% -68.1% 0.65 ± 93% perf-sched.sch_delay.max.ms.__cond_resched.kmem_cache_alloc.vm_area_dup.dup_mmap.dup_mm
> 9.09 ±119% -96.0% 0.36 ± 42% perf-sched.sch_delay.max.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
> 3.86 ± 40% -50.1% 1.93 ± 30% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.do_select.core_sys_select.kern_select
> 2.77 ± 78% -88.0% 0.33 ± 29% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
> 2.48 ± 60% -86.1% 0.34 ± 7% perf-sched.sch_delay.max.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
> 85.92 ± 73% +97.7% 169.86 ± 31% perf-sched.sch_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
> 95.98 ± 6% -9.5% 86.82 ± 4% perf-sched.total_wait_and_delay.average.ms
> 95.30 ± 6% -9.6% 86.19 ± 4% perf-sched.total_wait_time.average.ms
> 725.88 ± 28% -73.5% 192.63 ±141% perf-sched.wait_and_delay.avg.ms.__cond_resched.copy_pte_range.copy_p4d_range.copy_page_range.dup_mmap
> 2.22 ± 42% -76.2% 0.53 ±141% perf-sched.wait_and_delay.avg.ms.__cond_resched.generic_perform_write.generic_file_write_iter.vfs_write.ksys_write
> 4.02 ± 5% -31.9% 2.74 ± 19% perf-sched.wait_and_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
> 653.51 ± 9% -13.3% 566.43 ± 7% perf-sched.wait_and_delay.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
> 775.33 ± 4% -19.8% 621.67 ± 13% perf-sched.wait_and_delay.count.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi
> 88.33 ± 14% -16.6% 73.67 ± 11% perf-sched.wait_and_delay.count.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
> 6.28 ± 19% -73.5% 1.67 ±141% perf-sched.wait_and_delay.max.ms.__cond_resched.generic_perform_write.generic_file_write_iter.vfs_write.ksys_write
> 1286 ± 3% -65.6% 442.66 ± 91% perf-sched.wait_and_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
> 222.90 ± 16% +53.8% 342.84 ± 30% perf-sched.wait_and_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
> 0.91 ± 70% +7745.7% 71.06 ±129% perf-sched.wait_time.avg.ms.__cond_resched.__kmem_cache_alloc_node.kmalloc_trace.vmstat_start.seq_read_iter
> 21.65 ± 34% +42.0% 30.75 ± 12% perf-sched.wait_time.avg.ms.__cond_resched.__wait_for_common.wait_for_completion_state.kernel_clone.__x64_sys_vfork
> 2.67 ± 26% -96.6% 0.09 ±141% perf-sched.wait_time.avg.ms.__cond_resched.change_pmd_range.change_p4d_range.change_protection_range.mprotect_fixup
> 725.14 ± 28% -73.5% 192.24 ±141% perf-sched.wait_time.avg.ms.__cond_resched.copy_pte_range.copy_p4d_range.copy_page_range.dup_mmap
> 2.87 ± 28% -96.7% 0.09 ± 77% perf-sched.wait_time.avg.ms.__cond_resched.dput.open_last_lookups.path_openat.do_filp_open
> 2.10 ± 73% +4020.9% 86.55 ±135% perf-sched.wait_time.avg.ms.__cond_resched.dput.step_into.open_last_lookups.path_openat
> 1.96 ± 73% -94.8% 0.10 ±141% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.getname_flags.part.0
> 3.24 ± 21% -65.0% 1.13 ± 69% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.mas_alloc_nodes.mas_preallocate.mmap_region
> 338.18 ±140% -100.0% 0.07 ±141% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.prepare_creds.copy_creds.copy_process
> 21.80 ±122% -94.7% 1.16 ±130% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.vm_area_dup.__split_vma.do_vmi_align_munmap
> 4.29 ± 11% -66.2% 1.45 ±118% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.vm_area_dup.__split_vma.mprotect_fixup
> 0.94 ±126% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.mutex_lock.pipe_write.vfs_write.ksys_write
> 3.69 ± 29% -72.9% 1.00 ±141% perf-sched.wait_time.avg.ms.__cond_resched.task_work_run.do_exit.do_group_exit.__x64_sys_exit_group
> 0.04 ±141% +6192.3% 2.73 ± 63% perf-sched.wait_time.avg.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
> 32.86 ±128% -95.2% 1.57 ± 12% perf-sched.wait_time.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
> 3.96 ± 5% -33.0% 2.66 ± 19% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
> 7.38 ± 57% -89.8% 0.75 ± 88% perf-sched.wait_time.avg.ms.schedule_timeout.khugepaged_wait_work.khugepaged.kthread
> 643.25 ± 9% -12.8% 560.82 ± 8% perf-sched.wait_time.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
> 2.22 ± 74% +15121.1% 338.52 ±138% perf-sched.wait_time.max.ms.__cond_resched.__kmem_cache_alloc_node.kmalloc_trace.vmstat_start.seq_read_iter
> 4.97 ± 39% -98.2% 0.09 ±141% perf-sched.wait_time.max.ms.__cond_resched.change_pmd_range.change_p4d_range.change_protection_range.mprotect_fixup
> 3.98 -96.1% 0.16 ± 94% perf-sched.wait_time.max.ms.__cond_resched.dput.open_last_lookups.path_openat.do_filp_open
> 4.28 ± 3% -66.5% 1.44 ±126% perf-sched.wait_time.max.ms.__cond_resched.dput.terminate_walk.path_openat.do_filp_open
> 3.95 ± 14% +109.8% 8.28 ± 45% perf-sched.wait_time.max.ms.__cond_resched.exit_mmap.__mmput.exit_mm.do_exit
> 2.04 ± 74% -95.0% 0.10 ±141% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.getname_flags.part.0
> 340.63 ±140% -100.0% 0.12 ±141% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.prepare_creds.copy_creds.copy_process
> 4.74 ± 22% -68.4% 1.50 ±117% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc.vm_area_dup.__split_vma.mprotect_fixup
> 1.30 ±141% +205.8% 3.99 perf-sched.wait_time.max.ms.__cond_resched.mmput.m_stop.seq_read_iter.seq_read
> 1.42 ±131% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.pipe_write.vfs_write.ksys_write
> 337.62 ±140% -99.6% 1.33 ±141% perf-sched.wait_time.max.ms.__cond_resched.slab_pre_alloc_hook.constprop.0.kmem_cache_alloc_lru
> 4.91 ± 27% +4797.8% 240.69 ± 69% perf-sched.wait_time.max.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
> 4.29 ± 7% -76.7% 1.00 ±141% perf-sched.wait_time.max.ms.__cond_resched.task_work_run.do_exit.do_group_exit.__x64_sys_exit_group
> 0.05 ±141% +5358.6% 2.77 ± 61% perf-sched.wait_time.max.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
> 338.90 ±138% -98.8% 3.95 perf-sched.wait_time.max.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
> 1284 ± 3% -68.7% 401.56 ±106% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
> 7.38 ± 57% -89.8% 0.75 ± 88% perf-sched.wait_time.max.ms.schedule_timeout.khugepaged_wait_work.khugepaged.kthread
> 20.80 ± 72% -20.8 0.00 perf-profile.calltrace.cycles-pp.__cmd_record
> 20.80 ± 72% -20.8 0.00 perf-profile.calltrace.cycles-pp.record__finish_output.__cmd_record
> 20.78 ± 72% -20.8 0.00 perf-profile.calltrace.cycles-pp.perf_session__process_events.record__finish_output.__cmd_record
> 20.74 ± 72% -20.7 0.00 perf-profile.calltrace.cycles-pp.reader__read_event.perf_session__process_events.record__finish_output.__cmd_record
> 20.43 ± 72% -20.4 0.00 perf-profile.calltrace.cycles-pp.process_simple.reader__read_event.perf_session__process_events.record__finish_output.__cmd_record
> 20.03 ± 72% -20.0 0.00 perf-profile.calltrace.cycles-pp.ordered_events__queue.process_simple.reader__read_event.perf_session__process_events.record__finish_output
> 19.84 ± 72% -19.8 0.00 perf-profile.calltrace.cycles-pp.queue_event.ordered_events__queue.process_simple.reader__read_event.perf_session__process_events
> 0.77 ± 26% +0.2 1.00 ± 13% perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
> 0.73 ± 26% +0.3 1.00 ± 21% perf-profile.calltrace.cycles-pp.seq_read_iter.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 0.74 ± 18% +0.3 1.07 ± 19% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write
> 0.73 ± 18% +0.3 1.07 ± 19% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
> 0.78 ± 36% +0.3 1.11 ± 19% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__fxstat64
> 0.44 ± 73% +0.3 0.77 ± 14% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2
> 0.78 ± 36% +0.3 1.12 ± 19% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__fxstat64
> 0.76 ± 17% +0.3 1.10 ± 19% perf-profile.calltrace.cycles-pp.write
> 0.81 ± 34% +0.4 1.16 ± 16% perf-profile.calltrace.cycles-pp.__fxstat64
> 0.96 ± 33% +0.4 1.35 ± 15% perf-profile.calltrace.cycles-pp.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 0.96 ± 33% +0.4 1.35 ± 15% perf-profile.calltrace.cycles-pp.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 0.18 ±141% +0.4 0.60 ± 13% perf-profile.calltrace.cycles-pp.walk_component.link_path_walk.path_openat.do_filp_open.do_sys_openat2
> 1.00 ± 28% +0.4 1.43 ± 6% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close_nocancel
> 0.22 ±141% +0.4 0.65 ± 18% perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
> 0.47 ± 76% +0.5 0.93 ± 10% perf-profile.calltrace.cycles-pp.mm_init.alloc_bprm.do_execveat_common.__x64_sys_execve.do_syscall_64
> 0.42 ± 73% +0.5 0.90 ± 23% perf-profile.calltrace.cycles-pp.ksys_mmap_pgoff.do_syscall_64.entry_SYSCALL_64_after_hwframe.__mmap
> 1.14 ± 29% +0.5 1.62 ± 7% perf-profile.calltrace.cycles-pp.__close_nocancel
> 0.41 ± 73% +0.5 0.90 ± 23% perf-profile.calltrace.cycles-pp.vm_mmap_pgoff.ksys_mmap_pgoff.do_syscall_64.entry_SYSCALL_64_after_hwframe.__mmap
> 1.10 ± 28% +0.5 1.59 ± 8% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close_nocancel
> 1.10 ± 28% +0.5 1.59 ± 8% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close_nocancel
> 1.13 ± 19% +0.5 1.66 ± 17% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
> 0.58 ± 77% +0.5 1.12 ± 8% perf-profile.calltrace.cycles-pp.alloc_bprm.do_execveat_common.__x64_sys_execve.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 0.22 ±141% +0.5 0.77 ± 18% perf-profile.calltrace.cycles-pp.lookup_fast.open_last_lookups.path_openat.do_filp_open.do_sys_openat2
> 0.27 ±141% +0.5 0.82 ± 20% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__fxstat64
> 0.00 +0.6 0.56 ± 9% perf-profile.calltrace.cycles-pp.lookup_fast.walk_component.link_path_walk.path_openat.do_filp_open
> 0.22 ±141% +0.6 0.85 ± 18% perf-profile.calltrace.cycles-pp.open_last_lookups.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
> 1.03 ± 71% +5.3 6.34 ± 64% perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary
> 1.04 ± 71% +5.3 6.37 ± 64% perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
> 1.07 ± 71% +5.4 6.47 ± 63% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
> 1.07 ± 71% +5.4 6.47 ± 63% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
> 1.07 ± 71% +5.4 6.47 ± 63% perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify
> 1.00 ± 71% +5.5 6.50 ± 57% perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
> 1.03 ± 71% +5.6 6.61 ± 58% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry
> 1.07 ± 71% +5.7 6.74 ± 57% perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
> 1.38 ± 78% +6.2 7.53 ± 41% perf-profile.calltrace.cycles-pp.copy_page.folio_copy.migrate_folio_extra.move_to_new_folio.migrate_pages_batch
> 1.44 ± 80% +6.2 7.63 ± 41% perf-profile.calltrace.cycles-pp.folio_copy.migrate_folio_extra.move_to_new_folio.migrate_pages_batch.migrate_pages
> 1.44 ± 80% +6.2 7.67 ± 41% perf-profile.calltrace.cycles-pp.move_to_new_folio.migrate_pages_batch.migrate_pages.migrate_misplaced_page.do_huge_pmd_numa_page
> 1.44 ± 80% +6.2 7.67 ± 41% perf-profile.calltrace.cycles-pp.migrate_folio_extra.move_to_new_folio.migrate_pages_batch.migrate_pages.migrate_misplaced_page
> 1.52 ± 78% +6.5 8.07 ± 41% perf-profile.calltrace.cycles-pp.migrate_pages_batch.migrate_pages.migrate_misplaced_page.do_huge_pmd_numa_page.__handle_mm_fault
> 1.52 ± 78% +6.5 8.07 ± 41% perf-profile.calltrace.cycles-pp.migrate_pages.migrate_misplaced_page.do_huge_pmd_numa_page.__handle_mm_fault.handle_mm_fault
> 1.52 ± 78% +6.6 8.08 ± 41% perf-profile.calltrace.cycles-pp.migrate_misplaced_page.do_huge_pmd_numa_page.__handle_mm_fault.handle_mm_fault.do_user_addr_fault
> 1.53 ± 78% +6.6 8.14 ± 41% perf-profile.calltrace.cycles-pp.do_huge_pmd_numa_page.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault
> 5.22 ± 49% +7.3 12.52 ± 23% perf-profile.calltrace.cycles-pp.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault
> 5.49 ± 48% +7.5 12.98 ± 22% perf-profile.calltrace.cycles-pp.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault
> 6.00 ± 47% +7.6 13.57 ± 20% perf-profile.calltrace.cycles-pp.exc_page_fault.asm_exc_page_fault
> 5.97 ± 48% +7.6 13.55 ± 20% perf-profile.calltrace.cycles-pp.do_user_addr_fault.exc_page_fault.asm_exc_page_fault
> 6.99 ± 45% +7.8 14.80 ± 19% perf-profile.calltrace.cycles-pp.asm_exc_page_fault
> 20.83 ± 73% -20.8 0.00 perf-profile.children.cycles-pp.queue_event
> 20.80 ± 72% -20.8 0.00 perf-profile.children.cycles-pp.record__finish_output
> 20.78 ± 72% -20.8 0.00 perf-profile.children.cycles-pp.perf_session__process_events
> 20.75 ± 72% -20.8 0.00 perf-profile.children.cycles-pp.reader__read_event
> 20.43 ± 72% -20.4 0.00 perf-profile.children.cycles-pp.process_simple
> 20.03 ± 72% -20.0 0.00 perf-profile.children.cycles-pp.ordered_events__queue
> 0.37 ± 14% -0.1 0.26 ± 15% perf-profile.children.cycles-pp.rebalance_domains
> 0.11 ± 8% -0.1 0.06 ± 75% perf-profile.children.cycles-pp.wake_up_q
> 0.13 ± 7% +0.0 0.15 ± 13% perf-profile.children.cycles-pp.get_unmapped_area
> 0.05 +0.0 0.08 ± 22% perf-profile.children.cycles-pp.complete_signal
> 0.07 ± 23% +0.0 0.10 ± 19% perf-profile.children.cycles-pp.lru_add_fn
> 0.08 ± 24% +0.0 0.12 ± 10% perf-profile.children.cycles-pp.__do_sys_brk
> 0.08 ± 11% +0.0 0.13 ± 19% perf-profile.children.cycles-pp.arch_get_unmapped_area_topdown
> 0.08 ± 12% +0.0 0.12 ± 27% perf-profile.children.cycles-pp.__mem_cgroup_uncharge_list
> 0.02 ±141% +0.0 0.06 ± 19% perf-profile.children.cycles-pp.workingset_age_nonresident
> 0.02 ±141% +0.0 0.06 ± 19% perf-profile.children.cycles-pp.workingset_activation
> 0.04 ± 71% +0.1 0.09 ± 5% perf-profile.children.cycles-pp.page_add_file_rmap
> 0.09 ± 18% +0.1 0.14 ± 23% perf-profile.children.cycles-pp.terminate_walk
> 0.08 ± 12% +0.1 0.13 ± 19% perf-profile.children.cycles-pp.__send_signal_locked
> 0.00 +0.1 0.06 ± 8% perf-profile.children.cycles-pp.proc_pident_lookup
> 0.11 ± 15% +0.1 0.17 ± 15% perf-profile.children.cycles-pp.exit_notify
> 0.15 ± 31% +0.1 0.21 ± 15% perf-profile.children.cycles-pp.try_charge_memcg
> 0.04 ± 71% +0.1 0.10 ± 27% perf-profile.children.cycles-pp.__mod_lruvec_state
> 0.04 ± 73% +0.1 0.10 ± 24% perf-profile.children.cycles-pp.__mod_node_page_state
> 0.11 ± 25% +0.1 0.17 ± 22% perf-profile.children.cycles-pp.perf_mux_hrtimer_handler
> 0.08 ± 12% +0.1 0.14 ± 26% perf-profile.children.cycles-pp.get_slabinfo
> 0.02 ±141% +0.1 0.08 ± 27% perf-profile.children.cycles-pp.fput
> 0.12 ± 6% +0.1 0.18 ± 20% perf-profile.children.cycles-pp.xas_find
> 0.08 ± 17% +0.1 0.15 ± 39% perf-profile.children.cycles-pp.task_numa_fault
> 0.07 ± 44% +0.1 0.14 ± 18% perf-profile.children.cycles-pp.___slab_alloc
> 0.02 ±141% +0.1 0.09 ± 35% perf-profile.children.cycles-pp.copy_creds
> 0.08 ± 12% +0.1 0.15 ± 18% perf-profile.children.cycles-pp._exit
> 0.07 ± 78% +0.1 0.15 ± 27% perf-profile.children.cycles-pp.file_free_rcu
> 0.02 ±141% +0.1 0.09 ± 25% perf-profile.children.cycles-pp.do_task_dead
> 0.19 ± 22% +0.1 0.27 ± 10% perf-profile.children.cycles-pp.dequeue_entity
> 0.18 ± 29% +0.1 0.26 ± 16% perf-profile.children.cycles-pp.lru_add_drain
> 0.03 ± 70% +0.1 0.11 ± 25% perf-profile.children.cycles-pp.node_read_numastat
> 0.07 ± 25% +0.1 0.15 ± 51% perf-profile.children.cycles-pp.__kernel_read
> 0.20 ± 4% +0.1 0.28 ± 24% perf-profile.children.cycles-pp.__do_fault
> 0.23 ± 17% +0.1 0.31 ± 9% perf-profile.children.cycles-pp.native_irq_return_iret
> 0.11 ± 27% +0.1 0.20 ± 17% perf-profile.children.cycles-pp.__pte_alloc
> 0.06 ± 86% +0.1 0.14 ± 44% perf-profile.children.cycles-pp.cgroup_rstat_flush
> 0.06 ± 86% +0.1 0.14 ± 44% perf-profile.children.cycles-pp.cgroup_rstat_flush_locked
> 0.06 ± 86% +0.1 0.14 ± 44% perf-profile.children.cycles-pp.do_flush_stats
> 0.06 ± 86% +0.1 0.14 ± 44% perf-profile.children.cycles-pp.flush_memcg_stats_dwork
> 0.12 ± 28% +0.1 0.20 ± 18% perf-profile.children.cycles-pp.d_path
> 0.08 ± 36% +0.1 0.16 ± 17% perf-profile.children.cycles-pp.lookup_open
> 0.11 ± 7% +0.1 0.20 ± 33% perf-profile.children.cycles-pp.copy_pte_range
> 0.13 ± 16% +0.1 0.22 ± 18% perf-profile.children.cycles-pp.dev_attr_show
> 0.04 ± 73% +0.1 0.13 ± 49% perf-profile.children.cycles-pp.task_numa_migrate
> 0.19 ± 17% +0.1 0.28 ± 7% perf-profile.children.cycles-pp.__count_memcg_events
> 0.15 ± 17% +0.1 0.24 ± 10% perf-profile.children.cycles-pp.__pmd_alloc
> 0.00 +0.1 0.09 ± 31% perf-profile.children.cycles-pp.remove_vma
> 0.13 ± 16% +0.1 0.22 ± 22% perf-profile.children.cycles-pp.sysfs_kf_seq_show
> 0.12 ± 26% +0.1 0.21 ± 26% perf-profile.children.cycles-pp.__do_set_cpus_allowed
> 0.08 ± 78% +0.1 0.18 ± 20% perf-profile.children.cycles-pp.free_unref_page
> 0.02 ±141% +0.1 0.11 ± 32% perf-profile.children.cycles-pp.nd_jump_root
> 0.05 ± 74% +0.1 0.14 ± 23% perf-profile.children.cycles-pp._find_next_bit
> 0.12 ± 22% +0.1 0.21 ± 21% perf-profile.children.cycles-pp.clock_gettime
> 0.02 ±141% +0.1 0.11 ± 29% perf-profile.children.cycles-pp.free_percpu
> 0.00 +0.1 0.10 ± 25% perf-profile.children.cycles-pp.lockref_get
> 0.25 ± 40% +0.1 0.35 ± 24% perf-profile.children.cycles-pp.shift_arg_pages
> 0.26 ± 29% +0.1 0.36 ± 14% perf-profile.children.cycles-pp.rmqueue
> 0.13 ± 35% +0.1 0.23 ± 24% perf-profile.children.cycles-pp.single_open
> 0.05 ± 78% +0.1 0.15 ± 29% perf-profile.children.cycles-pp.vma_expand
> 0.09 ± 5% +0.1 0.21 ± 41% perf-profile.children.cycles-pp.prepare_task_switch
> 0.08 ± 12% +0.1 0.19 ± 37% perf-profile.children.cycles-pp.copy_page_to_iter
> 0.22 ± 40% +0.1 0.34 ± 33% perf-profile.children.cycles-pp.mas_wr_node_store
> 0.16 ± 41% +0.1 0.27 ± 13% perf-profile.children.cycles-pp.__set_cpus_allowed_ptr_locked
> 0.16 ± 10% +0.1 0.28 ± 26% perf-profile.children.cycles-pp.free_pages_and_swap_cache
> 0.11 ± 28% +0.1 0.23 ± 27% perf-profile.children.cycles-pp.single_release
> 0.00 +0.1 0.12 ± 37% perf-profile.children.cycles-pp.find_busiest_queue
> 0.23 ± 28% +0.1 0.35 ± 23% perf-profile.children.cycles-pp.pte_alloc_one
> 0.23 ± 32% +0.1 0.35 ± 16% perf-profile.children.cycles-pp.strncpy_from_user
> 0.20 ± 55% +0.1 0.33 ± 25% perf-profile.children.cycles-pp.gather_stats
> 0.16 ± 30% +0.1 0.30 ± 12% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
> 0.29 ± 31% +0.1 0.43 ± 14% perf-profile.children.cycles-pp.setup_arg_pages
> 0.13 ± 18% +0.1 0.27 ± 28% perf-profile.children.cycles-pp.aa_file_perm
> 0.03 ± 70% +0.1 0.18 ± 73% perf-profile.children.cycles-pp.set_pmd_migration_entry
> 0.09 ±103% +0.1 0.23 ± 39% perf-profile.children.cycles-pp.__wait_for_common
> 0.19 ± 16% +0.1 0.33 ± 27% perf-profile.children.cycles-pp.obj_cgroup_charge
> 0.03 ± 70% +0.1 0.18 ± 74% perf-profile.children.cycles-pp.try_to_migrate_one
> 0.14 ± 41% +0.2 0.29 ± 34% perf-profile.children.cycles-pp.select_task_rq
> 0.28 ± 35% +0.2 0.44 ± 28% perf-profile.children.cycles-pp.vm_area_alloc
> 0.04 ± 71% +0.2 0.20 ± 73% perf-profile.children.cycles-pp.try_to_migrate
> 0.04 ± 71% +0.2 0.22 ± 70% perf-profile.children.cycles-pp.rmap_walk_anon
> 0.37 ± 28% +0.2 0.55 ± 23% perf-profile.children.cycles-pp.pick_next_task_fair
> 0.04 ± 71% +0.2 0.22 ± 57% perf-profile.children.cycles-pp.migrate_folio_unmap
> 0.11 ± 51% +0.2 0.31 ± 30% perf-profile.children.cycles-pp.on_each_cpu_cond_mask
> 0.30 ± 30% +0.2 0.50 ± 16% perf-profile.children.cycles-pp.__mod_memcg_lruvec_state
> 0.30 ± 19% +0.2 0.50 ± 23% perf-profile.children.cycles-pp.__perf_sw_event
> 0.21 ± 30% +0.2 0.41 ± 19% perf-profile.children.cycles-pp.apparmor_file_permission
> 0.25 ± 29% +0.2 0.45 ± 15% perf-profile.children.cycles-pp.security_file_permission
> 0.13 ± 55% +0.2 0.34 ± 24% perf-profile.children.cycles-pp.smp_call_function_many_cond
> 0.31 ± 34% +0.2 0.52 ± 30% perf-profile.children.cycles-pp.pipe_read
> 0.32 ± 16% +0.2 0.55 ± 8% perf-profile.children.cycles-pp.getname_flags
> 0.33 ± 11% +0.2 0.55 ± 21% perf-profile.children.cycles-pp.___perf_sw_event
> 0.17 ± 44% +0.2 0.40 ± 38% perf-profile.children.cycles-pp.newidle_balance
> 0.38 ± 38% +0.2 0.60 ± 12% perf-profile.children.cycles-pp.__percpu_counter_init
> 0.38 ± 37% +0.2 0.61 ± 18% perf-profile.children.cycles-pp.readlink
> 0.27 ± 40% +0.2 0.51 ± 21% perf-profile.children.cycles-pp.mod_objcg_state
> 0.76 ± 17% +0.3 1.10 ± 19% perf-profile.children.cycles-pp.write
> 0.48 ± 42% +0.4 0.83 ± 13% perf-profile.children.cycles-pp.pid_revalidate
> 0.61 ± 34% +0.4 0.98 ± 17% perf-profile.children.cycles-pp.__d_lookup_rcu
> 0.73 ± 35% +0.4 1.12 ± 8% perf-profile.children.cycles-pp.alloc_bprm
> 0.59 ± 42% +0.4 0.98 ± 11% perf-profile.children.cycles-pp.pcpu_alloc
> 0.77 ± 31% +0.4 1.21 ± 4% perf-profile.children.cycles-pp.mm_init
> 0.92 ± 31% +0.5 1.38 ± 12% perf-profile.children.cycles-pp.__fxstat64
> 0.74 ± 32% +0.5 1.27 ± 20% perf-profile.children.cycles-pp.open_last_lookups
> 1.37 ± 29% +0.6 1.94 ± 19% perf-profile.children.cycles-pp.kmem_cache_alloc
> 1.35 ± 38% +0.7 2.09 ± 15% perf-profile.children.cycles-pp.lookup_fast
> 1.13 ± 59% +5.3 6.47 ± 63% perf-profile.children.cycles-pp.start_secondary
> 1.06 ± 60% +5.4 6.50 ± 57% perf-profile.children.cycles-pp.intel_idle
> 1.09 ± 59% +5.5 6.62 ± 58% perf-profile.children.cycles-pp.cpuidle_enter
> 1.09 ± 59% +5.5 6.62 ± 58% perf-profile.children.cycles-pp.cpuidle_enter_state
> 1.10 ± 59% +5.5 6.65 ± 58% perf-profile.children.cycles-pp.cpuidle_idle_call
> 1.13 ± 59% +5.6 6.74 ± 57% perf-profile.children.cycles-pp.secondary_startup_64_no_verify
> 1.13 ± 59% +5.6 6.74 ± 57% perf-profile.children.cycles-pp.cpu_startup_entry
> 1.13 ± 59% +5.6 6.74 ± 57% perf-profile.children.cycles-pp.do_idle
> 1.51 ± 69% +6.1 7.65 ± 41% perf-profile.children.cycles-pp.folio_copy
> 1.52 ± 69% +6.2 7.68 ± 41% perf-profile.children.cycles-pp.move_to_new_folio
> 1.52 ± 69% +6.2 7.68 ± 41% perf-profile.children.cycles-pp.migrate_folio_extra
> 1.74 ± 63% +6.2 7.96 ± 39% perf-profile.children.cycles-pp.copy_page
> 1.61 ± 68% +6.5 8.08 ± 41% perf-profile.children.cycles-pp.migrate_pages_batch
> 1.61 ± 68% +6.5 8.09 ± 41% perf-profile.children.cycles-pp.migrate_pages
> 1.61 ± 68% +6.5 8.10 ± 41% perf-profile.children.cycles-pp.migrate_misplaced_page
> 1.62 ± 67% +6.5 8.14 ± 41% perf-profile.children.cycles-pp.do_huge_pmd_numa_page
> 7.23 ± 41% +7.5 14.76 ± 19% perf-profile.children.cycles-pp.__handle_mm_fault
> 8.24 ± 38% +7.6 15.86 ± 17% perf-profile.children.cycles-pp.exc_page_fault
> 8.20 ± 38% +7.6 15.84 ± 17% perf-profile.children.cycles-pp.do_user_addr_fault
> 9.84 ± 35% +7.7 17.51 ± 15% perf-profile.children.cycles-pp.asm_exc_page_fault
> 7.71 ± 40% +7.7 15.41 ± 18% perf-profile.children.cycles-pp.handle_mm_fault
> 20.00 ± 72% -20.0 0.00 perf-profile.self.cycles-pp.queue_event
> 0.18 ± 22% -0.1 0.10 ± 24% perf-profile.self.cycles-pp.__d_lookup
> 0.07 ± 25% +0.0 0.10 ± 9% perf-profile.self.cycles-pp.__perf_read_group_add
> 0.08 ± 16% +0.0 0.12 ± 26% perf-profile.self.cycles-pp.check_heap_object
> 0.05 ± 8% +0.0 0.09 ± 30% perf-profile.self.cycles-pp.__memcg_kmem_charge_page
> 0.02 ±141% +0.0 0.06 ± 13% perf-profile.self.cycles-pp.try_to_wake_up
> 0.08 ± 31% +0.1 0.14 ± 30% perf-profile.self.cycles-pp.task_dump_owner
> 0.05 ± 74% +0.1 0.10 ± 24% perf-profile.self.cycles-pp.rmqueue
> 0.14 ± 26% +0.1 0.20 ± 6% perf-profile.self.cycles-pp.init_file
> 0.05 ± 78% +0.1 0.10 ± 4% perf-profile.self.cycles-pp.enqueue_task_fair
> 0.05 ± 78% +0.1 0.10 ± 27% perf-profile.self.cycles-pp.___slab_alloc
> 0.02 ±141% +0.1 0.08 ± 24% perf-profile.self.cycles-pp.pick_link
> 0.04 ± 73% +0.1 0.10 ± 24% perf-profile.self.cycles-pp.__mod_node_page_state
> 0.07 ± 17% +0.1 0.14 ± 26% perf-profile.self.cycles-pp.get_slabinfo
> 0.00 +0.1 0.07 ± 18% perf-profile.self.cycles-pp.select_task_rq
> 0.07 ± 78% +0.1 0.15 ± 27% perf-profile.self.cycles-pp.file_free_rcu
> 0.09 ± 44% +0.1 0.16 ± 15% perf-profile.self.cycles-pp.apparmor_file_permission
> 0.08 ± 27% +0.1 0.15 ± 35% perf-profile.self.cycles-pp.malloc
> 0.02 ±141% +0.1 0.10 ± 29% perf-profile.self.cycles-pp.memcg_account_kmem
> 0.23 ± 17% +0.1 0.31 ± 9% perf-profile.self.cycles-pp.native_irq_return_iret
> 0.13 ± 32% +0.1 0.21 ± 32% perf-profile.self.cycles-pp.obj_cgroup_charge
> 0.10 ± 43% +0.1 0.19 ± 11% perf-profile.self.cycles-pp.perf_read
> 0.14 ± 12% +0.1 0.23 ± 25% perf-profile.self.cycles-pp.cgroup_rstat_updated
> 0.13 ± 43% +0.1 0.23 ± 27% perf-profile.self.cycles-pp.mod_objcg_state
> 0.00 +0.1 0.10 ± 25% perf-profile.self.cycles-pp.lockref_get
> 0.07 ± 78% +0.1 0.18 ± 34% perf-profile.self.cycles-pp.update_rq_clock_task
> 0.00 +0.1 0.10 ± 27% perf-profile.self.cycles-pp.find_busiest_queue
> 0.09 ± 59% +0.1 0.21 ± 29% perf-profile.self.cycles-pp.smp_call_function_many_cond
> 0.15 ± 31% +0.1 0.27 ± 16% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
> 0.19 ± 39% +0.1 0.32 ± 19% perf-profile.self.cycles-pp.zap_pte_range
> 0.13 ± 18% +0.1 0.26 ± 23% perf-profile.self.cycles-pp.aa_file_perm
> 0.19 ± 50% +0.1 0.32 ± 24% perf-profile.self.cycles-pp.gather_stats
> 0.24 ± 16% +0.2 0.40 ± 17% perf-profile.self.cycles-pp.___perf_sw_event
> 0.25 ± 31% +0.2 0.41 ± 16% perf-profile.self.cycles-pp.__mod_memcg_lruvec_state
> 0.08 ± 71% +0.2 0.25 ± 24% perf-profile.self.cycles-pp.pcpu_alloc
> 0.16 ± 38% +0.2 0.34 ± 21% perf-profile.self.cycles-pp.filemap_map_pages
> 0.32 ± 41% +0.2 0.54 ± 17% perf-profile.self.cycles-pp.pid_revalidate
> 0.47 ± 19% +0.3 0.73 ± 21% perf-profile.self.cycles-pp.kmem_cache_alloc
> 0.60 ± 34% +0.4 0.96 ± 18% perf-profile.self.cycles-pp.__d_lookup_rcu
> 1.06 ± 60% +5.4 6.50 ± 57% perf-profile.self.cycles-pp.intel_idle
> 1.74 ± 63% +6.2 7.92 ± 39% perf-profile.self.cycles-pp.copy_page
>
>
>
> ***************************************************************************************************
> lkp-csl-2sp3: 96 threads 2 sockets Intel(R) Xeon(R) Platinum 8260L CPU @ 2.40GHz (Cascade Lake) with 128G memory
> =========================================================================================
> compiler/cpufreq_governor/iterations/kconfig/rootfs/tbox_group/test/testcase:
> gcc-12/performance/4x/x86_64-rhel-8.3/debian-11.1-x86_64-20220510.cgz/lkp-csl-2sp3/_INVERSE_BIND/autonuma-benchmark
>
> commit:
> fc769221b2 ("sched/numa: Remove unconditional scan logic using mm numa_scan_seq")
> 167773d1dd ("sched/numa: Increase tasks' access history")
>
> fc769221b23064c0 167773d1ddb5ffdd944f851f2cb
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 0.01 ± 20% +0.0 0.01 ± 15% mpstat.cpu.all.iowait%
> 25370 ± 3% -13.5% 21946 ± 6% uptime.idle
> 2.098e+10 ± 4% -15.8% 1.767e+10 ± 7% cpuidle..time
> 21696014 ± 4% -15.8% 18274389 ± 7% cpuidle..usage
> 3567832 ± 2% -12.9% 3106532 ± 5% numa-numastat.node1.local_node
> 4472555 ± 2% -10.8% 3989658 ± 6% numa-numastat.node1.numa_hit
> 21420616 ± 4% -15.9% 18019892 ± 7% turbostat.C6
> 62.12 +3.8% 64.46 turbostat.RAMWatt
> 185236 ± 6% -17.4% 152981 ± 15% numa-meminfo.node1.Active
> 184892 ± 6% -17.5% 152523 ± 15% numa-meminfo.node1.Active(anon)
> 190876 ± 6% -17.4% 157580 ± 15% numa-meminfo.node1.Shmem
> 373.94 ± 4% -14.8% 318.67 ± 6% autonuma-benchmark.numa01.seconds
> 3066 ± 2% -7.6% 2833 ± 3% autonuma-benchmark.time.elapsed_time
> 3066 ± 2% -7.6% 2833 ± 3% autonuma-benchmark.time.elapsed_time.max
> 1770652 ± 3% -7.7% 1634112 ± 3% autonuma-benchmark.time.involuntary_context_switches
> 258701 ± 2% -6.9% 240826 ± 3% autonuma-benchmark.time.user_time
> 46235 ± 6% -17.5% 38150 ± 15% numa-vmstat.node1.nr_active_anon
> 47723 ± 6% -17.4% 39411 ± 15% numa-vmstat.node1.nr_shmem
> 46235 ± 6% -17.5% 38150 ± 15% numa-vmstat.node1.nr_zone_active_anon
> 4471422 ± 2% -10.8% 3989129 ± 6% numa-vmstat.node1.numa_hit
> 3566699 ± 2% -12.9% 3106004 ± 5% numa-vmstat.node1.numa_local
> 2.37 ± 23% +45.3% 3.44 ± 16% sched_debug.cfs_rq:/.removed.runnable_avg.stddev
> 2.26 ± 28% +45.0% 3.28 ± 20% sched_debug.cfs_rq:/.removed.util_avg.stddev
> 203.53 ± 4% -12.8% 177.48 ± 3% sched_debug.cfs_rq:/.util_est_enqueued.stddev
> 128836 ± 7% -16.9% 107001 ± 8% sched_debug.cpu.max_idle_balance_cost.stddev
> 12639 ± 6% -12.1% 11108 ± 8% sched_debug.cpu.nr_switches.min
> 0.06 ± 41% -44.9% 0.04 ± 20% perf-sched.sch_delay.avg.ms.ipmi_thread.kthread.ret_from_fork.ret_from_fork_asm
> 1.84 ± 23% -56.4% 0.80 ± 33% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.do_select.core_sys_select.kern_select
> 0.08 ± 38% -55.2% 0.04 ± 22% perf-sched.sch_delay.max.ms.ipmi_thread.kthread.ret_from_fork.ret_from_fork_asm
> 7.55 ± 60% -77.2% 1.72 ±152% perf-sched.wait_time.avg.ms.__cond_resched.khugepaged.kthread.ret_from_fork.ret_from_fork_asm
> 10.72 ± 60% -73.8% 2.81 ±171% perf-sched.wait_time.max.ms.__cond_resched.khugepaged.kthread.ret_from_fork.ret_from_fork_asm
> 0.28 ± 12% -16.4% 0.23 ± 5% perf-sched.wait_time.max.ms.ipmi_thread.kthread.ret_from_fork.ret_from_fork_asm
> 8802 ± 3% -4.3% 8427 proc-vmstat.nr_mapped
> 54506 ± 5% -5.2% 51656 proc-vmstat.nr_shmem
> 8510048 -4.5% 8124296 proc-vmstat.numa_hit
> 43091 ± 8% +15.9% 49938 ± 6% proc-vmstat.numa_huge_pte_updates
> 7242046 -5.3% 6860532 ± 2% proc-vmstat.numa_local
> 3762770 ± 5% +34.7% 5068087 ± 3% proc-vmstat.numa_pages_migrated
> 22235827 ± 8% +15.8% 25759214 ± 6% proc-vmstat.numa_pte_updates
> 10591821 -5.4% 10024519 ± 2% proc-vmstat.pgfault
> 3762770 ± 5% +34.7% 5068087 ± 3% proc-vmstat.pgmigrate_success
> 489883 ± 2% -6.8% 456801 ± 3% proc-vmstat.pgreuse
> 7297 ± 5% +34.8% 9838 ± 3% proc-vmstat.thp_migration_success
> 22825216 -7.4% 21132800 ± 3% proc-vmstat.unevictable_pgs_scanned
> 40.10 +4.2% 41.80 perf-stat.i.MPKI
> 1.64 +0.1 1.74 perf-stat.i.branch-miss-rate%
> 1920111 +6.9% 2051982 perf-stat.i.branch-misses
> 60.50 +1.2 61.72 perf-stat.i.cache-miss-rate%
> 12369678 +6.9% 13223477 perf-stat.i.cache-misses
> 21918348 +4.6% 22934958 perf-stat.i.cache-references
> 22544 -4.0% 21634 perf-stat.i.cycles-between-cache-misses
> 1458 +12.1% 1635 ± 5% perf-stat.i.instructions-per-iTLB-miss
> 2.51 +2.4% 2.57 perf-stat.i.metric.M/sec
> 3383 +2.3% 3460 perf-stat.i.minor-faults
> 244016 +5.0% 256219 perf-stat.i.node-load-misses
> 4544736 +9.5% 4977101 ± 3% perf-stat.i.node-store-misses
> 6126744 +5.5% 6463826 ± 2% perf-stat.i.node-stores
> 3383 +2.3% 3460 perf-stat.i.page-faults
> 37.34 +3.4% 38.60 perf-stat.overall.MPKI
> 1.64 +0.1 1.74 perf-stat.overall.branch-miss-rate%
> 21951 -5.4% 20763 perf-stat.overall.cycles-between-cache-misses
> 1866870 +7.1% 2000069 perf-stat.ps.branch-misses
> 12385090 +6.6% 13198317 perf-stat.ps.cache-misses
> 21609219 +4.6% 22595642 perf-stat.ps.cache-references
> 3340 +2.3% 3418 perf-stat.ps.minor-faults
> 243774 +4.9% 255759 perf-stat.ps.node-load-misses
> 4560352 +9.0% 4973035 ± 3% perf-stat.ps.node-store-misses
> 6135666 +5.2% 6452858 ± 2% perf-stat.ps.node-stores
> 3340 +2.3% 3418 perf-stat.ps.page-faults
> 1.775e+12 -6.5% 1.659e+12 ± 2% perf-stat.total.instructions
> 32.90 ± 14% -14.9 17.99 ± 40% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt
> 0.60 ± 14% +0.3 0.88 ± 23% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2
> 0.57 ± 49% +0.4 0.93 ± 14% perf-profile.calltrace.cycles-pp.update_sg_wakeup_stats.find_idlest_group.find_idlest_cpu.select_task_rq_fair.sched_exec
> 0.78 ± 12% +0.4 1.15 ± 34% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_read.readn.perf_evsel__read
> 0.80 ± 14% +0.4 1.17 ± 26% perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
> 0.82 ± 15% +0.4 1.19 ± 33% perf-profile.calltrace.cycles-pp.__libc_read.readn.perf_evsel__read.read_counters.process_interval
> 0.80 ± 14% +0.4 1.19 ± 33% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__libc_read.readn.perf_evsel__read.read_counters
> 0.50 ± 46% +0.4 0.89 ± 25% perf-profile.calltrace.cycles-pp.open_last_lookups.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
> 0.59 ± 49% +0.4 0.98 ± 19% perf-profile.calltrace.cycles-pp.find_idlest_group.find_idlest_cpu.select_task_rq_fair.sched_exec.bprm_execve
> 0.59 ± 48% +0.4 1.00 ± 25% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__fxstat64
> 0.67 ± 47% +0.4 1.10 ± 22% perf-profile.calltrace.cycles-pp.sched_exec.bprm_execve.do_execveat_common.__x64_sys_execve.do_syscall_64
> 0.90 ± 18% +0.4 1.33 ± 24% perf-profile.calltrace.cycles-pp.show_numa_map.seq_read_iter.seq_read.vfs_read.ksys_read
> 0.66 ± 46% +0.4 1.09 ± 27% perf-profile.calltrace.cycles-pp.gather_pte_stats.walk_pmd_range.walk_pud_range.walk_p4d_range.walk_pgd_range
> 0.68 ± 46% +0.5 1.13 ± 27% perf-profile.calltrace.cycles-pp.walk_p4d_range.walk_pgd_range.__walk_page_range.walk_page_vma.show_numa_map
> 0.68 ± 46% +0.5 1.13 ± 27% perf-profile.calltrace.cycles-pp.walk_pud_range.walk_p4d_range.walk_pgd_range.__walk_page_range.walk_page_vma
> 0.68 ± 46% +0.5 1.14 ± 27% perf-profile.calltrace.cycles-pp.walk_page_vma.show_numa_map.seq_read_iter.seq_read.vfs_read
> 0.68 ± 46% +0.5 1.14 ± 27% perf-profile.calltrace.cycles-pp.__walk_page_range.walk_page_vma.show_numa_map.seq_read_iter.seq_read
> 0.68 ± 46% +0.5 1.14 ± 27% perf-profile.calltrace.cycles-pp.walk_pgd_range.__walk_page_range.walk_page_vma.show_numa_map.seq_read_iter
> 0.40 ± 71% +0.5 0.88 ± 20% perf-profile.calltrace.cycles-pp._dl_addr
> 0.93 ± 18% +0.5 1.45 ± 28% perf-profile.calltrace.cycles-pp.__fxstat64
> 0.88 ± 18% +0.5 1.41 ± 27% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__fxstat64
> 0.88 ± 18% +0.5 1.42 ± 28% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__fxstat64
> 0.60 ± 73% +0.6 1.24 ± 18% perf-profile.calltrace.cycles-pp.seq_read_iter.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 0.23 ±142% +0.7 0.88 ± 26% perf-profile.calltrace.cycles-pp.show_stat.seq_read_iter.vfs_read.ksys_read.do_syscall_64
> 2.87 ± 14% +1.3 4.21 ± 23% perf-profile.calltrace.cycles-pp.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
> 2.88 ± 14% +1.4 4.23 ± 23% perf-profile.calltrace.cycles-pp.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
> 34.28 ± 13% -14.6 19.70 ± 36% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
> 0.13 ± 29% -0.1 0.05 ± 76% perf-profile.children.cycles-pp.schedule_tail
> 0.12 ± 20% -0.1 0.05 ± 78% perf-profile.children.cycles-pp.__put_user_4
> 0.18 ± 16% +0.1 0.23 ± 13% perf-profile.children.cycles-pp.__x64_sys_munmap
> 0.09 ± 17% +0.1 0.16 ± 27% perf-profile.children.cycles-pp.__do_sys_brk
> 0.01 ±223% +0.1 0.08 ± 27% perf-profile.children.cycles-pp.acpi_ex_insert_into_field
> 0.01 ±223% +0.1 0.08 ± 27% perf-profile.children.cycles-pp.acpi_ex_opcode_1A_1T_1R
> 0.01 ±223% +0.1 0.08 ± 27% perf-profile.children.cycles-pp.acpi_ex_store_object_to_node
> 0.01 ±223% +0.1 0.08 ± 27% perf-profile.children.cycles-pp.acpi_ex_write_data_to_field
> 0.02 ±142% +0.1 0.09 ± 50% perf-profile.children.cycles-pp.common_perm_cond
> 0.06 ± 58% +0.1 0.14 ± 24% perf-profile.children.cycles-pp.___slab_alloc
> 0.02 ±144% +0.1 0.10 ± 63% perf-profile.children.cycles-pp.__alloc_pages_bulk
> 0.06 ± 18% +0.1 0.14 ± 58% perf-profile.children.cycles-pp.security_inode_getattr
> 0.12 ± 40% +0.1 0.21 ± 28% perf-profile.children.cycles-pp.__ptrace_may_access
> 0.07 ± 33% +0.1 0.18 ± 40% perf-profile.children.cycles-pp.brk
> 0.15 ± 14% +0.1 0.26 ± 23% perf-profile.children.cycles-pp.wq_worker_comm
> 0.09 ± 87% +0.1 0.21 ± 30% perf-profile.children.cycles-pp.irq_get_next_irq
> 0.93 ± 12% +0.2 1.17 ± 19% perf-profile.children.cycles-pp.do_dentry_open
> 0.15 ± 30% +0.3 0.43 ± 56% perf-profile.children.cycles-pp.run_ksoftirqd
> 0.54 ± 17% +0.4 0.89 ± 20% perf-profile.children.cycles-pp._dl_addr
> 0.74 ± 19% +0.4 1.09 ± 27% perf-profile.children.cycles-pp.gather_pte_stats
> 0.74 ± 25% +0.4 1.10 ± 21% perf-profile.children.cycles-pp.sched_exec
> 0.76 ± 19% +0.4 1.13 ± 27% perf-profile.children.cycles-pp.walk_p4d_range
> 0.76 ± 19% +0.4 1.13 ± 27% perf-profile.children.cycles-pp.walk_pud_range
> 0.76 ± 19% +0.4 1.14 ± 27% perf-profile.children.cycles-pp.walk_page_vma
> 0.76 ± 19% +0.4 1.14 ± 27% perf-profile.children.cycles-pp.__walk_page_range
> 0.76 ± 19% +0.4 1.14 ± 27% perf-profile.children.cycles-pp.walk_pgd_range
> 0.92 ± 13% +0.4 1.33 ± 20% perf-profile.children.cycles-pp.open_last_lookups
> 0.90 ± 17% +0.4 1.33 ± 24% perf-profile.children.cycles-pp.show_numa_map
> 0.43 ± 51% +0.5 0.88 ± 26% perf-profile.children.cycles-pp.show_stat
> 1.49 ± 11% +0.5 1.94 ± 15% perf-profile.children.cycles-pp.__do_softirq
> 1.22 ± 18% +0.6 1.78 ± 16% perf-profile.children.cycles-pp.update_sg_wakeup_stats
> 1.28 ± 20% +0.6 1.88 ± 18% perf-profile.children.cycles-pp.find_idlest_group
> 1.07 ± 16% +0.6 1.67 ± 30% perf-profile.children.cycles-pp.__fxstat64
> 1.36 ± 20% +0.6 1.98 ± 21% perf-profile.children.cycles-pp.find_idlest_cpu
> 30.64 ± 15% -14.9 15.70 ± 46% perf-profile.self.cycles-pp.asm_sysvec_apic_timer_interrupt
> 0.01 ±223% +0.1 0.07 ± 36% perf-profile.self.cycles-pp.pick_next_task_fair
> 0.10 ± 28% +0.1 0.17 ± 28% perf-profile.self.cycles-pp.__get_obj_cgroup_from_memcg
> 0.00 +0.1 0.07 ± 32% perf-profile.self.cycles-pp.touch_atime
> 0.04 ±106% +0.1 0.11 ± 18% perf-profile.self.cycles-pp.___slab_alloc
> 0.12 ± 37% +0.1 0.20 ± 27% perf-profile.self.cycles-pp.__ptrace_may_access
> 0.05 ± 52% +0.1 0.13 ± 75% perf-profile.self.cycles-pp.pick_link
> 0.14 ± 28% +0.1 0.24 ± 34% perf-profile.self.cycles-pp.__slab_free
> 0.47 ± 19% +0.3 0.79 ± 16% perf-profile.self.cycles-pp._dl_addr
> 1.00 ± 19% +0.4 1.44 ± 18% perf-profile.self.cycles-pp.update_sg_wakeup_stats
> 6.04 ± 14% +1.9 7.99 ± 18% perf-profile.self.cycles-pp.syscall_exit_to_user_mode
>
>
>
> ***************************************************************************************************
> lkp-icl-2sp6: 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz (Ice Lake) with 128G memory
> =========================================================================================
> compiler/cpufreq_governor/iterations/kconfig/rootfs/tbox_group/test/testcase:
> gcc-12/performance/4x/x86_64-rhel-8.3/debian-11.1-x86_64-20220510.cgz/lkp-icl-2sp6/numa01_THREAD_ALLOC/autonuma-benchmark
>
> commit:
> fc769221b2 ("sched/numa: Remove unconditional scan logic using mm numa_scan_seq")
> 167773d1dd ("sched/numa: Increase tasks' access history")
>
> fc769221b23064c0 167773d1ddb5ffdd944f851f2cb
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 36796 ± 6% -19.0% 29811 ± 8% uptime.idle
> 3.231e+10 ± 7% -21.6% 2.534e+10 ± 10% cpuidle..time
> 33785162 ± 7% -21.8% 26431366 ± 10% cpuidle..usage
> 10.56 ± 7% -1.5 9.02 ± 9% mpstat.cpu.all.idle%
> 0.01 ± 22% +0.0 0.01 ± 11% mpstat.cpu.all.iowait%
> 0.17 ± 2% -0.0 0.15 ± 4% mpstat.cpu.all.soft%
> 388157 ± 31% +60.9% 624661 ± 36% numa-numastat.node0.other_node
> 4511165 ± 4% -13.5% 3901276 ± 7% numa-numastat.node1.numa_hit
> 951382 ± 12% -30.4% 661932 ± 31% numa-numastat.node1.other_node
> 388157 ± 31% +60.9% 624658 ± 36% numa-vmstat.node0.numa_other
> 4510646 ± 4% -13.5% 3900948 ± 7% numa-vmstat.node1.numa_hit
> 951382 ± 12% -30.4% 661932 ± 31% numa-vmstat.node1.numa_other
> 305.08 ± 5% +19.6% 364.96 ± 6% sched_debug.cfs_rq:/.util_est_enqueued.avg
> 989.11 ± 4% +13.0% 1117 ± 6% sched_debug.cfs_rq:/.util_est_enqueued.max
> 5082 ± 6% -19.0% 4114 ± 12% sched_debug.cpu.curr->pid.stddev
> 85229 -13.2% 74019 ± 9% sched_debug.cpu.max_idle_balance_cost.stddev
> 7575 ± 5% -8.3% 6946 ± 3% sched_debug.cpu.nr_switches.min
> 394498 ± 5% -21.0% 311653 ± 10% turbostat.C1E
> 33233046 ± 8% -21.7% 26018024 ± 10% turbostat.C6
> 10.39 ± 7% -1.5 8.90 ± 9% turbostat.C6%
> 7.77 ± 6% -17.5% 6.41 ± 9% turbostat.CPU%c1
> 206.88 +2.9% 212.86 turbostat.RAMWatt
> 372.30 -8.3% 341.49 autonuma-benchmark.numa01.seconds
> 209.06 -10.7% 186.67 ± 6% autonuma-benchmark.numa01_THREAD_ALLOC.seconds
> 2408 -8.6% 2200 ± 2% autonuma-benchmark.time.elapsed_time
> 2408 -8.6% 2200 ± 2% autonuma-benchmark.time.elapsed_time.max
> 1221333 ± 2% -5.1% 1159380 ± 2% autonuma-benchmark.time.involuntary_context_switches
> 3508627 -4.1% 3363550 autonuma-benchmark.time.minor_page_faults
> 11174 +1.9% 11388 autonuma-benchmark.time.percent_of_cpu_this_job_got
> 261419 -7.0% 243046 ± 2% autonuma-benchmark.time.user_time
> 220972 ± 7% +22.1% 269753 ± 3% proc-vmstat.numa_hint_faults
> 164886 ± 11% +19.4% 196883 ± 5% proc-vmstat.numa_hint_faults_local
> 7964964 -5.9% 7494239 proc-vmstat.numa_hit
> 82885 ± 6% +43.4% 118829 ± 6% proc-vmstat.numa_huge_pte_updates
> 6625289 -6.3% 6207618 proc-vmstat.numa_local
> 6636312 ± 4% +33.1% 8834573 ± 3% proc-vmstat.numa_pages_migrated
> 42671823 ± 6% +43.2% 61094857 ± 6% proc-vmstat.numa_pte_updates
> 9173569 -6.2% 8602789 proc-vmstat.pgfault
> 6636312 ± 4% +33.1% 8834573 ± 3% proc-vmstat.pgmigrate_success
> 397595 -6.5% 371818 proc-vmstat.pgreuse
> 12917 ± 4% +33.2% 17200 ± 3% proc-vmstat.thp_migration_success
> 17964288 -8.7% 16401792 ± 2% proc-vmstat.unevictable_pgs_scanned
> 0.63 ± 12% -0.3 0.28 ±100% perf-profile.calltrace.cycles-pp.__libc_read.readn.evsel__read_counter.read_counters.process_interval
> 1.17 ± 4% -0.2 0.96 ± 14% perf-profile.children.cycles-pp.__irq_exit_rcu
> 0.65 ± 19% -0.2 0.46 ± 13% perf-profile.children.cycles-pp.task_mm_cid_work
> 0.23 ± 16% -0.2 0.08 ± 61% perf-profile.children.cycles-pp.rcu_gp_kthread
> 0.30 ± 5% -0.1 0.16 ± 43% perf-profile.children.cycles-pp.rebalance_domains
> 0.13 ± 21% -0.1 0.03 ±100% perf-profile.children.cycles-pp.rcu_gp_fqs_loop
> 0.25 ± 16% -0.1 0.18 ± 14% perf-profile.children.cycles-pp.lru_add_drain_cpu
> 0.17 ± 9% -0.1 0.11 ± 23% perf-profile.children.cycles-pp.__perf_read_group_add
> 0.09 ± 21% -0.0 0.04 ± 72% perf-profile.children.cycles-pp.__evlist__disable
> 0.11 ± 19% -0.0 0.07 ± 53% perf-profile.children.cycles-pp.vma_link
> 0.13 ± 6% -0.0 0.09 ± 27% perf-profile.children.cycles-pp.ptep_clear_flush
> 0.07 ± 7% -0.0 0.03 ±100% perf-profile.children.cycles-pp.__kernel_read
> 0.07 ± 7% -0.0 0.03 ±100% perf-profile.children.cycles-pp.simple_lookup
> 0.09 ± 9% +0.0 0.11 ± 10% perf-profile.children.cycles-pp.exit_notify
> 0.12 ± 14% +0.0 0.16 ± 17% perf-profile.children.cycles-pp.__do_set_cpus_allowed
> 0.02 ±141% +0.1 0.09 ± 40% perf-profile.children.cycles-pp.__sysvec_call_function
> 0.05 ± 78% +0.1 0.13 ± 42% perf-profile.children.cycles-pp.__flush_smp_call_function_queue
> 0.03 ±141% +0.1 0.12 ± 41% perf-profile.children.cycles-pp.sysvec_call_function
> 0.64 ± 19% -0.2 0.45 ± 12% perf-profile.self.cycles-pp.task_mm_cid_work
> 0.07 ± 7% -0.0 0.03 ±100% perf-profile.self.cycles-pp.dequeue_task_fair
> 0.05 ± 8% +0.0 0.08 ± 14% perf-profile.self.cycles-pp.file_free_rcu
> 1057 +9.9% 1162 ± 2% perf-stat.i.MPKI
> 76.36 ± 2% +4.6 80.91 ± 2% perf-stat.i.cache-miss-rate%
> 5.353e+08 ± 4% +18.2% 6.327e+08 ± 3% perf-stat.i.cache-misses
> 7.576e+08 +9.3% 8.282e+08 ± 2% perf-stat.i.cache-references
> 3.727e+11 +1.7% 3.792e+11 perf-stat.i.cpu-cycles
> 154.73 +1.5% 157.11 perf-stat.i.cpu-migrations
> 722.61 ± 2% -8.9% 658.12 ± 3% perf-stat.i.cycles-between-cache-misses
> 2.91 +1.7% 2.96 perf-stat.i.metric.GHz
> 1242 ± 3% +5.7% 1312 ± 2% perf-stat.i.metric.K/sec
> 12.73 +9.8% 13.98 ± 2% perf-stat.i.metric.M/sec
> 245601 +5.4% 258749 perf-stat.i.node-load-misses
> 43.38 -2.5 40.91 ± 3% perf-stat.i.node-store-miss-rate%
> 2.267e+08 ± 3% +8.8% 2.467e+08 ± 4% perf-stat.i.node-store-misses
> 3.067e+08 ± 5% +25.2% 3.841e+08 ± 6% perf-stat.i.node-stores
> 915.00 +9.1% 998.24 ± 2% perf-stat.overall.MPKI
> 71.29 ± 3% +5.7 77.00 ± 3% perf-stat.overall.cache-miss-rate%
> 702.58 ± 3% -14.0% 604.23 ± 3% perf-stat.overall.cycles-between-cache-misses
> 42.48 ± 2% -3.3 39.20 ± 5% perf-stat.overall.node-store-miss-rate%
> 5.33e+08 ± 4% +18.1% 6.296e+08 ± 3% perf-stat.ps.cache-misses
> 7.475e+08 +9.4% 8.178e+08 ± 2% perf-stat.ps.cache-references
> 3.739e+11 +1.6% 3.8e+11 perf-stat.ps.cpu-cycles
> 154.22 +1.6% 156.62 perf-stat.ps.cpu-migrations
> 3655 +2.5% 3744 perf-stat.ps.minor-faults
> 242759 +5.4% 255974 perf-stat.ps.node-load-misses
> 2.255e+08 ± 3% +8.9% 2.457e+08 ± 3% perf-stat.ps.node-store-misses
> 3.057e+08 ± 5% +24.9% 3.82e+08 ± 6% perf-stat.ps.node-stores
> 3655 +2.5% 3744 perf-stat.ps.page-faults
> 1.968e+12 -8.3% 1.805e+12 ± 2% perf-stat.total.instructions
> 0.03 ±141% +283.8% 0.13 ± 85% perf-sched.sch_delay.avg.ms.__cond_resched.zap_pmd_range.isra.0.unmap_page_range
> 0.06 ± 77% +254.1% 0.20 ± 54% perf-sched.sch_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault
> 0.08 ± 28% -89.5% 0.01 ±223% perf-sched.sch_delay.avg.ms.schedule_preempt_disabled.kthread.ret_from_fork.ret_from_fork_asm
> 0.92 ± 10% -33.4% 0.62 ± 20% perf-sched.sch_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
> 0.10 ± 22% -27.2% 0.07 ± 8% perf-sched.sch_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
> 0.35 ±141% +186.8% 1.02 ± 69% perf-sched.sch_delay.max.ms.__cond_resched.zap_pmd_range.isra.0.unmap_page_range
> 1.47 ± 81% +262.6% 5.32 ± 79% perf-sched.sch_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault
> 2.42 ± 42% +185.9% 6.91 ± 52% perf-sched.sch_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
> 0.26 ± 9% +1470.7% 4.16 ±115% perf-sched.sch_delay.max.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
> 3.61 ± 7% -25.3% 2.70 ± 18% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.do_select.core_sys_select.kern_select
> 0.08 ± 28% -89.5% 0.01 ±223% perf-sched.sch_delay.max.ms.schedule_preempt_disabled.kthread.ret_from_fork.ret_from_fork_asm
> 17.44 ± 4% -19.0% 14.12 ± 13% perf-sched.wait_and_delay.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
> 23.36 ± 21% -37.2% 14.67 ± 22% perf-sched.wait_and_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
> 107.00 +11.5% 119.33 ± 4% perf-sched.wait_and_delay.count.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
> 75.00 +9.6% 82.17 ± 2% perf-sched.wait_and_delay.count.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
> 79.99 ± 97% -86.8% 10.52 ± 41% perf-sched.wait_and_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_call_function_single
> 145.98 ± 14% -41.5% 85.46 ± 22% perf-sched.wait_and_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
> 1.20 ± 94% +152.3% 3.03 ± 31% perf-sched.wait_time.avg.ms.__cond_resched.change_pmd_range.change_p4d_range.change_protection_range.mprotect_fixup
> 2.30 ± 57% -90.9% 0.21 ±205% perf-sched.wait_time.avg.ms.__cond_resched.down_read.walk_component.link_path_walk.part
> 0.06 ± 8% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
> 0.58 ± 81% -76.6% 0.14 ± 50% perf-sched.wait_time.avg.ms.__cond_resched.dput.terminate_walk.path_lookupat.filename_lookup
> 2.63 ± 21% -59.4% 1.07 ± 68% perf-sched.wait_time.avg.ms.__cond_resched.dput.terminate_walk.path_openat.do_filp_open
> 2.68 ± 40% -79.5% 0.55 ±174% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.getname_flags.part.0
> 3.59 ± 17% -52.9% 1.69 ± 98% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.mas_alloc_nodes.mas_preallocate.mmap_region
> 4.05 ± 2% -80.6% 0.79 ±133% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc.vm_area_dup.__split_vma.mprotect_fixup
> 3.75 ± 19% -81.9% 0.68 ±135% perf-sched.wait_time.avg.ms.__cond_resched.mmput.m_stop.seq_read_iter.seq_read
> 1527 ± 70% -84.5% 236.84 ±223% perf-sched.wait_time.avg.ms.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
> 16.13 ± 4% -21.4% 12.69 ± 15% perf-sched.wait_time.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
> 1.16 ±117% -99.1% 0.01 ±223% perf-sched.wait_time.avg.ms.io_schedule.folio_wait_bit_common.filemap_fault.__do_fault
> 0.26 ± 25% -93.2% 0.02 ±223% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read_killable.__access_remote_vm
> 22.43 ± 21% -37.4% 14.05 ± 22% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
> 4.41 ± 8% -94.9% 0.22 ±191% perf-sched.wait_time.max.ms.__cond_resched.down_read.walk_component.link_path_walk.part
> 0.08 ± 29% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
> 6.20 ± 8% -21.6% 4.87 ± 13% perf-sched.wait_time.max.ms.__cond_resched.lock_mm_and_find_vma.do_user_addr_fault.exc_page_fault.asm_exc_page_fault
> 4.23 ± 5% -68.3% 1.34 ±136% perf-sched.wait_time.max.ms.__cond_resched.mmput.m_stop.seq_read_iter.seq_read
> 3053 ± 70% -92.2% 236.84 ±223% perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
> 4.78 ± 33% +10431.5% 502.95 ± 99% perf-sched.wait_time.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
> 79.99 ± 97% -86.9% 10.51 ± 41% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_call_function_single
> 2.13 ±128% -99.5% 0.01 ±223% perf-sched.wait_time.max.ms.io_schedule.folio_wait_bit_common.filemap_fault.__do_fault
> 0.26 ± 25% -92.4% 0.02 ±223% perf-sched.wait_time.max.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read_killable.__access_remote_vm
> 142.79 ± 13% -40.9% 84.32 ± 22% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
>
>
>
>
I hope I can add your tested-by if I need to REBASE the patch for -mm
tree depending on the feedback I get any further with any minor changes.
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