[linus:master] [fs/pipe] 478dbf1217: stress-ng.pipeherd.ops_per_sec -6.6% regression

From: kernel test robot
Date: Tue Nov 14 2023 - 02:16:13 EST

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hi, Max Kellermann,

when this commit is:
commit: 8114dc703a4833be4a98a37f5ed0a3abb55dcb34 ("fs/pipe: use spinlock in pipe_read() only if there is a watch_queue")
https://git.kernel.org/cgit/linux/kernel/git/vfs/vfs.git vfs.misc.backing_file

we reported 'a 70.9% improvement of stress-ng.pipeherd.ops_per_sec' in
https://lore.kernel.org/all/202310202136.48fa5db-oliver.sang@xxxxxxxxx/

as in below
"In addition to that, the commit also has significant impact on the following tests:"
part, after this commit merged into mainline, we still observed similar
improvement on same platform for previous report.

but now we also notice a relatively small regression on another platform (Ice
Lake). just FYI.

Hello,

kernel test robot noticed a -6.6% regression of stress-ng.pipeherd.ops_per_sec on:

commit: 478dbf12176700f28d836dd03ae93a6888278230 ("fs/pipe: use spinlock in pipe_read() only if there is a watch_queue")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

testcase: stress-ng
test machine: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory
parameters:

nr_threads: 10%
disk: 1HDD
testtime: 60s
fs: ext4
class: os
test: pipeherd
cpufreq_governor: performance

In addition to that, the commit also has significant impact on the following tests:

+------------------+-------------------------------------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.pipeherd.ops_per_sec 54.2% improvement |
| test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory |
| test parameters | class=memory |
| | cpufreq_governor=performance |
| | nr_threads=1 |
| | test=pipeherd |
| | testtime=60s |
+------------------+-------------------------------------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.pipeherd.ops_per_sec 65.9% improvement |
| test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory |
| test parameters | class=os |
| | cpufreq_governor=performance |
| | disk=1HDD |
| | fs=ext4 |
| | nr_threads=1 |
| | test=pipeherd |
| | testtime=60s |
+------------------+-------------------------------------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.pipeherd.ops_per_sec 67.1% improvement |
| test machine | 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory |
| test parameters | class=pipe |
| | cpufreq_governor=performance |
| | nr_threads=1 |
| | test=pipeherd |
| | testtime=60s |
+------------------+-------------------------------------------------------------------------------------------------+

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202311141453.1f47a9fa-oliver.sang@xxxxxxxxx

Details are as below:
-------------------------------------------------------------------------------------------------->

The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20231114/202311141453.1f47a9fa-oliver.sang@xxxxxxxxx

=========================================================================================
class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
os/gcc-12/performance/1HDD/ext4/x86_64-rhel-8.3/10%/debian-11.1-x86_64-20220510.cgz/lkp-icl-2sp7/pipeherd/stress-ng/60s

commit:
dfaabf916b ("fs/pipe: remove unnecessary spinlock from pipe_write()")
478dbf1217 ("fs/pipe: use spinlock in pipe_read() only if there is a watch_queue")

dfaabf916b1ca83c 478dbf12176700f28d836dd03ae
---------------- ---------------------------
%stddev %change %stddev
\ | \
526626 ± 74% -69.6% 159872 ± 21% numa-numastat.node0.local_node
5863 ± 8% -36.9% 3701 ± 9% uptime.idle
2.411e+09 ± 9% -89.7% 2.484e+08 ± 6% cpuidle..time
76903274 -99.6% 271718 ± 6% cpuidle..usage
63.57 ± 2% -87.7% 7.85 ± 7% iostat.cpu.idle
34.90 ± 4% +160.5% 90.92 iostat.cpu.system
1.49 ± 9% -18.0% 1.22 ± 4% iostat.cpu.user
26.67 ± 19% +710.6% 216.17 ± 32% perf-c2c.DRAM.local
1238 ± 9% +1528.0% 20160 perf-c2c.DRAM.remote
27866 ± 2% -28.3% 19976 ± 2% perf-c2c.HITM.local
821.83 ± 9% +1762.9% 15310 ± 2% perf-c2c.HITM.remote
28688 ± 2% +23.0% 35286 perf-c2c.HITM.total
62.55 ± 3% -57.3 5.23 ± 13% mpstat.cpu.all.idle%
0.03 ± 28% -0.0 0.00 ± 87% mpstat.cpu.all.iowait%
1.04 ± 7% +0.7 1.76 mpstat.cpu.all.irq%
0.08 -0.1 0.02 ± 2% mpstat.cpu.all.soft%
34.78 ± 5% +57.0 91.79 mpstat.cpu.all.sys%
1.51 ± 9% -0.3 1.21 ± 4% mpstat.cpu.all.usr%
63.60 ± 2% -87.6% 7.89 ± 6% vmstat.cpu.id
34.89 ± 4% +160.5% 90.89 vmstat.cpu.sy
6015779 -34.6% 3937070 ± 3% vmstat.memory.cache
22.73 ± 5% +2270.7% 538.97 vmstat.procs.r
2264275 ± 5% -75.6% 552750 vmstat.system.cs
106734 ± 2% +164.4% 282256 vmstat.system.in
926253 ±107% -98.6% 12925 ± 28% numa-meminfo.node0.Active
923516 ±107% -99.0% 9610 ± 9% numa-meminfo.node0.Active(anon)
987699 ±107% -98.2% 17930 ± 10% numa-meminfo.node0.Shmem
1934288 ± 53% -96.3% 72485 ± 41% numa-meminfo.node1.Active
1929735 ± 53% -96.4% 68621 ± 42% numa-meminfo.node1.Active(anon)
339310 ± 36% +250.3% 1188705 ± 11% numa-meminfo.node1.Inactive
330949 ± 37% +257.3% 1182584 ± 10% numa-meminfo.node1.Inactive(anon)
230892 ±107% -99.0% 2408 ± 8% numa-vmstat.node0.nr_active_anon
246933 ±107% -98.2% 4486 ± 10% numa-vmstat.node0.nr_shmem
230892 ±107% -99.0% 2408 ± 8% numa-vmstat.node0.nr_zone_active_anon
526461 ± 74% -69.7% 159396 ± 21% numa-vmstat.node0.numa_local
481592 ± 53% -96.4% 17224 ± 42% numa-vmstat.node1.nr_active_anon
82836 ± 37% +257.0% 295752 ± 10% numa-vmstat.node1.nr_inactive_anon
481591 ± 53% -96.4% 17224 ± 42% numa-vmstat.node1.nr_zone_active_anon
82836 ± 37% +257.0% 295752 ± 10% numa-vmstat.node1.nr_zone_inactive_anon
1.00 -49.8% 0.50 stress-ng.pipeherd.context_switches_per_bogo_op
212749 -53.2% 99609 stress-ng.pipeherd.context_switches_per_sec
76601132 -6.6% 71546484 stress-ng.pipeherd.ops
1275768 -6.6% 1191345 stress-ng.pipeherd.ops_per_sec
3077 ± 7% +64016.3% 1972964 stress-ng.time.involuntary_context_switches
2300 +162.0% 6027 stress-ng.time.percent_of_cpu_this_job_got
1401 +165.8% 3724 stress-ng.time.system_time
76594217 -55.7% 33909068 stress-ng.time.voluntary_context_switches
2861043 ± 3% -97.0% 86607 ± 32% meminfo.Active
2853751 ± 3% -97.2% 79425 ± 35% meminfo.Active(anon)
370040 +17.1% 433497 meminfo.AnonPages
5887524 -34.9% 3833012 ± 3% meminfo.Cached
9202449 ± 2% -19.7% 7387275 meminfo.Committed_AS
577677 ± 7% +135.6% 1360963 ± 8% meminfo.Inactive
565253 ± 7% +138.6% 1348750 ± 8% meminfo.Inactive(anon)
721987 ± 17% -29.7% 507823 ± 5% meminfo.Mapped
7431362 -25.0% 5570370 ± 2% meminfo.Memused
3049597 ± 2% -67.4% 995298 ± 13% meminfo.Shmem
7631133 -26.4% 5615499 ± 2% meminfo.max_used_kB
1426 ± 5% +103.9% 2908 turbostat.Avg_MHz
46.20 ± 4% +47.8 94.04 turbostat.Busy%
462647 ± 2% -98.0% 9228 ± 15% turbostat.C1
0.22 ± 4% -0.2 0.00 ±141% turbostat.C1%
76043040 -100.0% 31605 ± 5% turbostat.C1E
48.76 ± 5% -48.6 0.14 ± 3% turbostat.C1E%
53.44 ± 4% -89.5% 5.60 ± 6% turbostat.CPU%c1
0.08 ± 5% -52.0% 0.04 turbostat.IPC
7167100 ± 3% +156.2% 18365074 turbostat.IRQ
51823 ± 2% -96.9% 1614 ± 49% turbostat.POLL
0.04 ± 9% -0.0 0.00 turbostat.POLL%
199.14 +6.2% 211.54 turbostat.PkgWatt
56.50 +6.4% 60.09 turbostat.RAMWatt
712852 ± 2% -97.2% 19859 ± 35% proc-vmstat.nr_active_anon
92566 +17.0% 108330 proc-vmstat.nr_anon_pages
1473145 -34.8% 960026 ± 3% proc-vmstat.nr_file_pages
141419 ± 7% +138.4% 337140 ± 8% proc-vmstat.nr_inactive_anon
180483 ± 17% -29.7% 126961 ± 5% proc-vmstat.nr_mapped
761859 ± 2% -67.3% 248821 ± 13% proc-vmstat.nr_shmem
26214 -5.0% 24914 proc-vmstat.nr_slab_reclaimable
712852 ± 2% -97.2% 19859 ± 35% proc-vmstat.nr_zone_active_anon
141419 ± 7% +138.4% 337140 ± 8% proc-vmstat.nr_zone_inactive_anon
1508913 -45.7% 819289 ± 5% proc-vmstat.numa_hit
1442579 -47.8% 752958 ± 6% proc-vmstat.numa_local
230268 ± 4% -81.8% 41917 ± 4% proc-vmstat.pgactivate
1560001 -44.4% 867821 ± 5% proc-vmstat.pgalloc_normal
574253 ± 3% -5.6% 542249 proc-vmstat.pgfault
441076 -21.9% 344410 proc-vmstat.pgfree
289408 +551.2% 1884528 sched_debug.cfs_rq:/.avg_vruntime.avg
364822 ± 5% +595.8% 2538349 ± 6% sched_debug.cfs_rq:/.avg_vruntime.max
272926 ± 2% +565.9% 1817529 sched_debug.cfs_rq:/.avg_vruntime.min
14026 ± 15% +678.3% 109165 ± 18% sched_debug.cfs_rq:/.avg_vruntime.stddev
0.35 ± 6% +1278.8% 4.83 ± 2% sched_debug.cfs_rq:/.h_nr_running.avg
1.42 ± 37% +376.5% 6.75 ± 7% sched_debug.cfs_rq:/.h_nr_running.max
0.48 ± 6% +92.2% 0.92 ± 16% sched_debug.cfs_rq:/.h_nr_running.stddev
14065 ± 22% -99.6% 54.87 ±174% sched_debug.cfs_rq:/.left_vruntime.avg
289572 ± 2% -98.9% 3240 ±170% sched_debug.cfs_rq:/.left_vruntime.max
61238 ± 11% -99.3% 403.18 ±170% sched_debug.cfs_rq:/.left_vruntime.stddev
393508 ± 98% -48.6% 202268 ±117% sched_debug.cfs_rq:/.load.max
64958 ± 97% -59.2% 26528 ±106% sched_debug.cfs_rq:/.load.stddev
3.00 ± 19% +125.0% 6.75 ± 5% sched_debug.cfs_rq:/.load_avg.min
289408 +551.2% 1884528 sched_debug.cfs_rq:/.min_vruntime.avg
364822 ± 5% +595.8% 2538349 ± 6% sched_debug.cfs_rq:/.min_vruntime.max
272926 ± 2% +565.9% 1817529 sched_debug.cfs_rq:/.min_vruntime.min
14026 ± 15% +678.3% 109165 ± 18% sched_debug.cfs_rq:/.min_vruntime.stddev
0.35 ± 6% +78.0% 0.62 ± 2% sched_debug.cfs_rq:/.nr_running.avg
0.47 ± 6% -54.2% 0.22 ± 5% sched_debug.cfs_rq:/.nr_running.stddev
14065 ± 22% -99.6% 54.87 ±174% sched_debug.cfs_rq:/.right_vruntime.avg
289572 ± 2% -98.9% 3240 ±170% sched_debug.cfs_rq:/.right_vruntime.max
61238 ± 11% -99.3% 403.18 ±170% sched_debug.cfs_rq:/.right_vruntime.stddev
424.02 ± 3% +1113.9% 5147 sched_debug.cfs_rq:/.runnable_avg.avg
1025 ± 5% +573.2% 6900 ± 3% sched_debug.cfs_rq:/.runnable_avg.max
134.42 ± 10% +2171.7% 3053 ± 37% sched_debug.cfs_rq:/.runnable_avg.min
200.79 ± 4% +311.3% 825.76 ± 12% sched_debug.cfs_rq:/.runnable_avg.stddev
421.09 ± 3% +76.6% 743.61 ± 2% sched_debug.cfs_rq:/.util_avg.avg
1023 ± 5% +23.8% 1267 ± 4% sched_debug.cfs_rq:/.util_avg.max
134.00 ± 10% +211.3% 417.08 sched_debug.cfs_rq:/.util_avg.min
28.58 ± 34% +1246.8% 384.95 ± 2% sched_debug.cfs_rq:/.util_est_enqueued.avg
459.42 ± 23% +128.0% 1047 ± 13% sched_debug.cfs_rq:/.util_est_enqueued.max
82.49 ± 22% +66.4% 137.24 ± 6% sched_debug.cfs_rq:/.util_est_enqueued.stddev
384961 ± 2% +16.3% 447594 ± 3% sched_debug.cpu.avg_idle.avg
575142 ± 10% +40.3% 807182 ± 6% sched_debug.cpu.avg_idle.max
10472 ± 4% +116.2% 22636 ± 24% sched_debug.cpu.avg_idle.min
133104 ± 7% +27.8% 170087 ± 5% sched_debug.cpu.avg_idle.stddev
2.94 ± 2% +684.3% 23.10 ± 19% sched_debug.cpu.clock.stddev
1594 ± 8% +84.8% 2947 sched_debug.cpu.curr->pid.avg
1985 -54.7% 899.37 ± 3% sched_debug.cpu.curr->pid.stddev
0.00 ± 9% +179.7% 0.00 ± 18% sched_debug.cpu.next_balance.stddev
0.35 ± 7% +1277.0% 4.82 sched_debug.cpu.nr_running.avg
1.25 ± 30% +440.0% 6.75 ± 7% sched_debug.cpu.nr_running.max
0.47 ± 5% +97.1% 0.93 ± 16% sched_debug.cpu.nr_running.stddev
1129961 -76.0% 270748 sched_debug.cpu.nr_switches.avg
1230736 -73.6% 324498 ± 4% sched_debug.cpu.nr_switches.max
889548 ± 6% -72.0% 248742 sched_debug.cpu.nr_switches.min
55881 ± 13% -72.1% 15568 ± 18% sched_debug.cpu.nr_switches.stddev
0.68 ± 9% +274.8% 2.56 ± 4% perf-stat.i.MPKI
1.22 -0.5 0.69 ± 2% perf-stat.i.branch-miss-rate%
53919038 ± 5% -47.4% 28362095 ± 3% perf-stat.i.branch-misses
7.77 ± 9% +31.4 39.22 ± 4% perf-stat.i.cache-miss-rate%
16836662 ± 7% +189.5% 48749241 ± 3% perf-stat.i.cache-misses
2.355e+08 ± 4% -47.2% 1.244e+08 perf-stat.i.cache-references
2386604 ± 5% -75.8% 577272 perf-stat.i.context-switches
4.42 +123.1% 9.86 perf-stat.i.cpi
9.829e+10 ± 4% +92.6% 1.893e+11 perf-stat.i.cpu-cycles
467023 ± 4% -65.7% 160277 perf-stat.i.cpu-migrations
7207 ± 11% -46.2% 3874 ± 4% perf-stat.i.cycles-between-cache-misses
0.09 ± 5% -0.0 0.04 ± 8% perf-stat.i.dTLB-load-miss-rate%
5621309 ± 6% -62.2% 2122334 ± 6% perf-stat.i.dTLB-load-misses
6.152e+09 ± 5% -18.8% 4.995e+09 perf-stat.i.dTLB-loads
0.01 ± 16% -0.0 0.00 ± 9% perf-stat.i.dTLB-store-miss-rate%
194620 ± 9% -70.7% 57018 ± 10% perf-stat.i.dTLB-store-misses
3.088e+09 ± 5% -53.5% 1.437e+09 perf-stat.i.dTLB-stores
2.278e+10 ± 5% -15.1% 1.933e+10 perf-stat.i.instructions
0.26 -48.8% 0.13 ± 2% perf-stat.i.ipc
1.54 ± 4% +92.6% 2.96 perf-stat.i.metric.GHz
332.10 ± 11% +135.2% 780.97 ± 2% perf-stat.i.metric.K/sec
220.73 ± 5% -22.9% 170.20 perf-stat.i.metric.M/sec
89.76 ± 3% +6.5 96.26 perf-stat.i.node-load-miss-rate%
8050438 ± 7% +242.5% 27576187 ± 2% perf-stat.i.node-load-misses
24.75 ± 3% +46.8 71.52 perf-stat.i.node-store-miss-rate%
1463258 ± 8% +910.5% 14785780 ± 3% perf-stat.i.node-store-misses
6111881 ± 5% -8.6% 5588094 ± 3% perf-stat.i.node-stores
0.74 ± 9% +240.9% 2.53 ± 4% perf-stat.overall.MPKI
1.16 -0.5 0.65 perf-stat.overall.branch-miss-rate%
7.16 ± 9% +32.1 39.24 ± 4% perf-stat.overall.cache-miss-rate%
4.32 +127.1% 9.81 perf-stat.overall.cpi
5873 ± 9% -33.9% 3883 ± 3% perf-stat.overall.cycles-between-cache-misses
0.09 ± 4% -0.0 0.04 ± 7% perf-stat.overall.dTLB-load-miss-rate%
0.01 ± 11% -0.0 0.00 ± 10% perf-stat.overall.dTLB-store-miss-rate%
0.23 -56.0% 0.10 perf-stat.overall.ipc
89.56 ± 3% +7.8 97.35 perf-stat.overall.node-load-miss-rate%
19.29 ± 3% +53.3 72.60 perf-stat.overall.node-store-miss-rate%
53131153 ± 4% -47.6% 27850694 ± 3% perf-stat.ps.branch-misses
16572483 ± 7% +190.1% 48069542 ± 3% perf-stat.ps.cache-misses
2.321e+08 ± 4% -47.2% 1.226e+08 perf-stat.ps.cache-references
2350599 ± 5% -75.8% 568552 perf-stat.ps.context-switches
9.682e+10 ± 4% +92.6% 1.865e+11 perf-stat.ps.cpu-cycles
460172 ± 4% -65.7% 157887 perf-stat.ps.cpu-migrations
5533567 ± 6% -62.2% 2092824 ± 6% perf-stat.ps.dTLB-load-misses
6.059e+09 ± 5% -18.8% 4.917e+09 perf-stat.ps.dTLB-loads
191690 ± 9% -70.6% 56451 ± 9% perf-stat.ps.dTLB-store-misses
3.041e+09 ± 5% -53.5% 1.415e+09 perf-stat.ps.dTLB-stores
2.243e+10 ± 5% -15.2% 1.902e+10 perf-stat.ps.instructions
7932536 ± 7% +242.8% 27192073 ± 2% perf-stat.ps.node-load-misses
1439876 ± 8% +912.5% 14579379 ± 3% perf-stat.ps.node-store-misses
6012349 ± 5% -8.5% 5503370 ± 3% perf-stat.ps.node-stores
1.444e+12 -17.2% 1.196e+12 perf-stat.total.instructions
0.01 ± 20% +21015.2% 1.62 ± 21% perf-sched.sch_delay.avg.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.01 ± 7% +20429.0% 1.06 ± 20% perf-sched.sch_delay.avg.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.01 ± 23% +28172.1% 3.20 ± 22% perf-sched.sch_delay.avg.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.02 ± 14% +70602.0% 11.67 ± 46% perf-sched.sch_delay.avg.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
0.00 ± 11% +7.7e+05% 24.36 ± 32% perf-sched.sch_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.01 ± 6% +86766.2% 11.15 ±142% perf-sched.sch_delay.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.01 +13264.6% 1.07 ± 22% perf-sched.sch_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.01 ± 6% +20197.7% 1.49 ± 23% perf-sched.sch_delay.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
0.02 ±144% +16369.8% 4.09 ±120% perf-sched.sch_delay.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
0.01 ± 8% +11767.6% 0.67 ± 21% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
0.01 ± 17% +39790.2% 3.39 ± 34% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.do_select.core_sys_select.kern_select
0.01 ± 7% +9498.3% 0.93 ± 70% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.01 ± 5% +64131.4% 5.46 ±136% perf-sched.sch_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.01 +95047.6% 6.66 ± 43% perf-sched.sch_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.01 ± 22% +31469.2% 3.42 ± 98% perf-sched.sch_delay.avg.ms.syslog_print.do_syslog.kmsg_read.vfs_read
0.00 ± 30% +27246.7% 0.68 ± 20% perf-sched.sch_delay.avg.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
0.03 ± 22% +4.3e+05% 112.55 ± 72% perf-sched.sch_delay.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
0.02 ± 50% +28074.5% 4.41 ± 25% perf-sched.sch_delay.max.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
0.03 ± 40% +3.9e+05% 123.78 ± 17% perf-sched.sch_delay.max.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.03 ± 69% -81.2% 0.01 ± 45% perf-sched.sch_delay.max.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.02 ± 32% +14863.7% 3.64 ± 19% perf-sched.sch_delay.max.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.02 ± 31% +21396.6% 5.27 ± 17% perf-sched.sch_delay.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.02 ± 18% +59092.4% 11.74 ± 45% perf-sched.sch_delay.max.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
0.03 ± 24% +3.5e+06% 1005 perf-sched.sch_delay.max.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.06 ± 20% +5.9e+05% 342.13 ±140% perf-sched.sch_delay.max.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.04 ± 16% +8.7e+05% 312.90 ±100% perf-sched.sch_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
6.61 ± 9% +20499.9% 1361 ± 36% perf-sched.sch_delay.max.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
0.68 ±218% +18756.7% 127.85 ±137% perf-sched.sch_delay.max.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
0.01 ± 16% +22014.1% 2.62 ± 42% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
0.01 ± 20% +41560.3% 5.07 ± 7% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.do_select.core_sys_select.kern_select
0.02 ± 36% +36628.8% 6.37 ± 63% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.03 ± 31% +5.4e+05% 176.12 ±212% perf-sched.sch_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.03 ± 46% +2e+06% 512.00 ± 22% perf-sched.sch_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.01 ± 26% +39380.8% 5.13 ± 98% perf-sched.sch_delay.max.ms.syslog_print.do_syslog.kmsg_read.vfs_read
0.02 ± 86% +17118.9% 2.73 ± 12% perf-sched.sch_delay.max.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
3.71 ± 8% +61141.9% 2271 ± 31% perf-sched.sch_delay.max.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
0.01 ± 6% +20252.3% 1.49 ± 24% perf-sched.total_sch_delay.average.ms
6.61 ± 9% +34276.1% 2271 ± 31% perf-sched.total_sch_delay.max.ms
0.86 +443.3% 4.68 ± 19% perf-sched.total_wait_and_delay.average.ms
4286519 -70.1% 1279647 ± 14% perf-sched.total_wait_and_delay.count.ms
3830 ± 9% +64.1% 6287 ± 19% perf-sched.total_wait_and_delay.max.ms
0.85 +273.1% 3.18 ± 17% perf-sched.total_wait_time.average.ms
3830 ± 9% +31.9% 5050 ± 10% perf-sched.total_wait_time.max.ms
10.52 +87.3% 19.71 ± 15% perf-sched.wait_and_delay.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
688.11 ± 30% -99.9% 0.83 ±223% perf-sched.wait_and_delay.avg.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
802.75 +31.5% 1055 ± 29% perf-sched.wait_and_delay.avg.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
186.90 ± 10% -32.2% 126.70 ± 27% perf-sched.wait_and_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.75 ±145% +13752.5% 103.71 ± 45% perf-sched.wait_and_delay.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.70 +502.7% 4.24 ± 20% perf-sched.wait_and_delay.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
2.47 ± 11% +1183.5% 31.76 ± 45% perf-sched.wait_and_delay.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
373.25 +61.4% 602.50 ± 13% perf-sched.wait_and_delay.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
453.57 +97.8% 897.15 ± 17% perf-sched.wait_and_delay.avg.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
18.03 ± 11% +82.3% 32.86 ± 30% perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
571.44 ± 5% +40.4% 802.53 ± 14% perf-sched.wait_and_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
579.27 ± 3% +82.5% 1057 ± 19% perf-sched.wait_and_delay.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
382.00 -30.7% 264.67 ± 10% perf-sched.wait_and_delay.count.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
5.67 ± 24% -94.1% 0.33 ±223% perf-sched.wait_and_delay.count.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
10.17 ± 3% -44.3% 5.67 ± 13% perf-sched.wait_and_delay.count.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
2.00 -58.3% 0.83 ± 44% perf-sched.wait_and_delay.count.devkmsg_read.vfs_read.ksys_read.do_syscall_64
6.00 -61.1% 2.33 ± 76% perf-sched.wait_and_delay.count.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
125.33 -35.2% 81.17 ± 18% perf-sched.wait_and_delay.count.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
4283821 -71.4% 1223670 ± 14% perf-sched.wait_and_delay.count.pipe_read.vfs_read.ksys_read.do_syscall_64
19.83 -44.5% 11.00 ± 25% perf-sched.wait_and_delay.count.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
13.00 -33.3% 8.67 ± 14% perf-sched.wait_and_delay.count.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
20.00 -44.2% 11.17 ± 17% perf-sched.wait_and_delay.count.schedule_timeout.kcompactd.kthread.ret_from_fork
275.83 ± 11% -34.7% 180.17 ± 26% perf-sched.wait_and_delay.count.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
585.50 -32.7% 393.83 ± 12% perf-sched.wait_and_delay.count.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
452.83 ± 3% -54.3% 207.17 ± 16% perf-sched.wait_and_delay.count.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
2011 ± 39% -99.9% 1.66 ±223% perf-sched.wait_and_delay.max.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
999.73 +168.2% 2680 ± 17% perf-sched.wait_and_delay.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
74.83 ±148% +1726.9% 1367 ± 35% perf-sched.wait_and_delay.max.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
1009 +353.7% 4579 ± 31% perf-sched.wait_and_delay.max.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
4.67 ± 9% +11279.5% 531.33 ± 50% perf-sched.wait_and_delay.max.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
1000 +166.9% 2671 ± 27% perf-sched.wait_and_delay.max.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
499.97 +183.4% 1416 ± 13% perf-sched.wait_and_delay.max.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
505.00 +266.0% 1848 ± 12% perf-sched.wait_and_delay.max.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
375.83 ± 11% +187.1% 1078 ± 15% perf-sched.wait_and_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
2686 ± 16% +130.3% 6186 ± 22% perf-sched.wait_and_delay.max.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
0.00 ±223% +3.8e+05% 18.61 ± 22% perf-sched.wait_time.avg.ms.__cond_resched.__alloc_pages.__folio_alloc.vma_alloc_folio.shmem_alloc_folio
10.52 +87.0% 19.67 ± 15% perf-sched.wait_time.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
0.04 ± 29% +56775.8% 24.65 ± 29% perf-sched.wait_time.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
0.67 ± 2% +351.9% 3.03 ± 14% perf-sched.wait_time.avg.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.10 ±223% +929.7% 1.04 ±107% perf-sched.wait_time.avg.ms.__cond_resched.mutex_lock.pipe_write.vfs_write.ksys_write
0.67 ± 5% +175.1% 1.83 ± 60% perf-sched.wait_time.avg.ms.__cond_resched.pipe_read.vfs_read.ksys_read.do_syscall_64
0.00 ±223% +1.4e+06% 27.78 ± 35% perf-sched.wait_time.avg.ms.__cond_resched.shmem_inode_acct_block.shmem_alloc_and_acct_folio.shmem_get_folio_gfp.shmem_write_begin
688.10 ± 30% -99.9% 0.83 ±223% perf-sched.wait_time.avg.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.11 ±223% +1407.2% 1.69 ± 80% 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
802.74 +31.1% 1052 ± 29% perf-sched.wait_time.avg.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
1.95 ± 11% -88.6% 0.22 ±223% perf-sched.wait_time.avg.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
186.90 ± 10% -45.2% 102.33 ± 39% perf-sched.wait_time.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
1.05 ± 84% +8736.4% 92.56 ± 38% perf-sched.wait_time.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.32 ± 21% +9484.2% 30.89 ±196% 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
0.66 ± 2% +224.3% 2.14 ± 17% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.70 +295.4% 2.75 ± 17% perf-sched.wait_time.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
2.45 ± 10% +1029.6% 27.67 ± 38% perf-sched.wait_time.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
373.24 +61.2% 601.57 ± 13% perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.10 ±223% +1432.1% 1.60 ± 65% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.pipe_write
0.67 +28106.1% 188.32 ± 50% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
453.56 +97.8% 897.14 ± 17% perf-sched.wait_time.avg.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
571.43 ± 5% +40.4% 802.12 ± 14% perf-sched.wait_time.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.01 ± 8% +2310.4% 0.27 ± 71% perf-sched.wait_time.avg.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
579.24 ± 3% +63.1% 944.72 ± 15% perf-sched.wait_time.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
0.00 ±223% +5.4e+05% 25.90 ± 12% perf-sched.wait_time.max.ms.__cond_resched.__alloc_pages.__folio_alloc.vma_alloc_folio.shmem_alloc_folio
0.53 ± 72% +2321.4% 12.75 ±123% perf-sched.wait_time.max.ms.__cond_resched.__mutex_lock.constprop.0.pipe_read
0.15 ± 46% +3.9e+05% 591.60 ± 65% perf-sched.wait_time.max.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
0.94 ± 6% +13779.0% 130.35 ± 18% perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.10 ±223% +2299.3% 2.43 ± 66% perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.pipe_write.vfs_write.ksys_write
0.76 ± 15% +1852.9% 14.88 ±110% perf-sched.wait_time.max.ms.__cond_resched.pipe_read.vfs_read.ksys_read.do_syscall_64
0.00 ±223% +9e+06% 180.20 ± 92% perf-sched.wait_time.max.ms.__cond_resched.shmem_inode_acct_block.shmem_alloc_and_acct_folio.shmem_get_folio_gfp.shmem_write_begin
2011 ± 39% -99.9% 1.66 ±223% perf-sched.wait_time.max.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.11 ±223% +10815.4% 12.21 ±166% 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
999.72 +167.7% 2676 ± 17% perf-sched.wait_time.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
3.90 ± 11% -88.6% 0.44 ±223% perf-sched.wait_time.max.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
75.92 ±145% +1253.8% 1027 perf-sched.wait_time.max.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.66 ± 7% +14655.7% 97.22 ±185% 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
0.12 ±223% +1139.0% 1.48 ±116% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi
0.98 ± 6% +2.2e+05% 2203 ± 74% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
1009 +269.0% 3725 ± 25% perf-sched.wait_time.max.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
4.66 ± 9% +9253.2% 435.81 ± 26% perf-sched.wait_time.max.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
1000 +166.8% 2671 ± 27% perf-sched.wait_time.max.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
499.95 +183.4% 1416 ± 13% perf-sched.wait_time.max.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.95 ± 8% +1017.7% 10.57 ± 88% perf-sched.wait_time.max.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.pipe_read
0.10 ±223% +2784.5% 3.01 ±112% perf-sched.wait_time.max.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.pipe_write
1.51 ± 8% +1.3e+05% 2034 ± 57% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
504.99 +266.0% 1848 ± 12% perf-sched.wait_time.max.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
375.82 ± 11% +57.6% 592.31 ± 9% perf-sched.wait_time.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.04 ± 15% +4237.2% 1.83 ± 55% perf-sched.wait_time.max.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
2686 ± 16% +83.8% 4939 ± 12% perf-sched.wait_time.max.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
24.50 -24.5 0.00 perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
24.14 -24.1 0.00 perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify
24.13 -24.1 0.00 perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
24.10 -24.1 0.00 perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
14.32 -14.3 0.00 perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
13.35 ± 2% -13.3 0.00 perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary
13.25 ± 2% -13.2 0.00 perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry
12.23 -12.2 0.00 perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
14.36 ± 2% -11.8 2.55 perf-profile.calltrace.cycles-pp.__mutex_lock.pipe_read.vfs_read.ksys_read.do_syscall_64
10.68 ± 4% -8.2 2.51 perf-profile.calltrace.cycles-pp.schedule.pipe_read.vfs_read.ksys_read.do_syscall_64
10.43 ± 4% -8.0 2.44 perf-profile.calltrace.cycles-pp.__schedule.schedule.pipe_read.vfs_read.ksys_read
8.08 ± 3% -7.0 1.05 perf-profile.calltrace.cycles-pp.osq_lock.__mutex_lock.pipe_read.vfs_read.ksys_read
5.76 ± 2% -5.8 0.00 perf-profile.calltrace.cycles-pp.flush_smp_call_function_queue.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
5.28 ± 2% -5.3 0.00 perf-profile.calltrace.cycles-pp.__flush_smp_call_function_queue.flush_smp_call_function_queue.do_idle.cpu_startup_entry.start_secondary
4.18 -3.4 0.82 perf-profile.calltrace.cycles-pp.mutex_spin_on_owner.__mutex_lock.pipe_read.vfs_read.ksys_read
3.37 ± 3% -3.1 0.25 ±100% perf-profile.calltrace.cycles-pp.dequeue_entity.dequeue_task_fair.__schedule.schedule.pipe_read
3.64 ± 3% -2.8 0.86 perf-profile.calltrace.cycles-pp.dequeue_task_fair.__schedule.schedule.pipe_read.vfs_read
1.69 -1.2 0.52 ± 2% perf-profile.calltrace.cycles-pp.__mutex_lock.pipe_write.vfs_write.ksys_write.do_syscall_64
4.46 ± 2% -0.8 3.67 perf-profile.calltrace.cycles-pp.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_write
4.62 ± 2% -0.8 3.84 perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_write.vfs_write
4.86 ± 2% -0.5 4.36 perf-profile.calltrace.cycles-pp.__wake_up_common.__wake_up_common_lock.pipe_write.vfs_write.ksys_write
1.54 -0.2 1.30 perf-profile.calltrace.cycles-pp.mutex_unlock.pipe_read.vfs_read.ksys_read.do_syscall_64
0.66 ± 3% -0.2 0.51 perf-profile.calltrace.cycles-pp.__list_del_entry_valid_or_report.finish_wait.pipe_read.vfs_read.ksys_read
1.36 -0.0 1.32 perf-profile.calltrace.cycles-pp.mutex_lock.pipe_read.vfs_read.ksys_read.do_syscall_64
0.59 ± 3% +0.1 0.66 perf-profile.calltrace.cycles-pp.mutex_lock.pipe_write.vfs_write.ksys_write.do_syscall_64
0.79 +0.1 0.90 perf-profile.calltrace.cycles-pp.mutex_unlock.pipe_write.vfs_write.ksys_write.do_syscall_64
0.43 ± 44% +0.4 0.86 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
0.00 +0.6 0.59 perf-profile.calltrace.cycles-pp.enqueue_task_fair.activate_task.ttwu_do_activate.try_to_wake_up.autoremove_wake_function
0.00 +0.6 0.65 ± 2% perf-profile.calltrace.cycles-pp.__sysvec_call_function_single.sysvec_call_function_single.asm_sysvec_call_function_single.prepare_to_wait_event.pipe_read
0.00 +0.6 0.65 ± 2% perf-profile.calltrace.cycles-pp.__flush_smp_call_function_queue.__sysvec_call_function_single.sysvec_call_function_single.asm_sysvec_call_function_single.prepare_to_wait_event
0.00 +0.7 0.69 ± 2% perf-profile.calltrace.cycles-pp.sysvec_call_function_single.asm_sysvec_call_function_single.prepare_to_wait_event.pipe_read.vfs_read
0.00 +0.7 0.70 perf-profile.calltrace.cycles-pp.activate_task.ttwu_do_activate.try_to_wake_up.autoremove_wake_function.__wake_up_common
0.00 +0.8 0.76 perf-profile.calltrace.cycles-pp.ttwu_do_activate.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
0.00 +0.8 0.76 ± 2% perf-profile.calltrace.cycles-pp.asm_sysvec_call_function_single.prepare_to_wait_event.pipe_read.vfs_read.ksys_read
60.97 +4.1 65.02 perf-profile.calltrace.cycles-pp.read
60.32 +4.3 64.65 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.read
60.18 +4.4 64.61 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
59.43 +4.8 64.19 perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
59.28 +4.8 64.13 perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
59.02 +4.9 63.97 perf-profile.calltrace.cycles-pp.pipe_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
11.25 +9.7 20.98 perf-profile.calltrace.cycles-pp.finish_wait.pipe_read.vfs_read.ksys_read.do_syscall_64
10.56 +9.9 20.44 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.finish_wait.pipe_read.vfs_read.ksys_read
10.16 +10.0 20.18 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.finish_wait.pipe_read.vfs_read
13.01 +20.5 33.55 perf-profile.calltrace.cycles-pp.prepare_to_wait_event.pipe_read.vfs_read.ksys_read.do_syscall_64
9.04 +22.0 30.99 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.prepare_to_wait_event.pipe_read.vfs_read.ksys_read
11.10 +22.5 33.65 perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
8.02 +22.6 30.57 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.prepare_to_wait_event.pipe_read.vfs_read
10.98 +22.6 33.57 perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
10.76 +22.7 33.42 perf-profile.calltrace.cycles-pp.pipe_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
11.30 +22.7 34.03 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write
11.27 +22.7 34.01 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
11.62 +22.8 34.42 perf-profile.calltrace.cycles-pp.write
6.95 +23.7 30.62 perf-profile.calltrace.cycles-pp.__wake_up_common_lock.pipe_write.vfs_write.ksys_write.do_syscall_64
2.01 ± 2% +24.1 26.08 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__wake_up_common_lock.pipe_write.vfs_write.ksys_write
1.90 ± 2% +24.1 26.00 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__wake_up_common_lock.pipe_write.vfs_write
24.50 -24.5 0.00 perf-profile.children.cycles-pp.secondary_startup_64_no_verify
24.50 -24.5 0.00 perf-profile.children.cycles-pp.cpu_startup_entry
24.48 -24.5 0.00 perf-profile.children.cycles-pp.do_idle
24.14 -24.1 0.00 perf-profile.children.cycles-pp.start_secondary
14.54 -14.5 0.00 perf-profile.children.cycles-pp.cpuidle_idle_call
13.55 -13.5 0.00 perf-profile.children.cycles-pp.cpuidle_enter
13.48 -13.5 0.00 perf-profile.children.cycles-pp.cpuidle_enter_state
16.06 ± 2% -13.0 3.07 perf-profile.children.cycles-pp.__mutex_lock
12.41 -12.4 0.00 perf-profile.children.cycles-pp.intel_idle
13.86 ± 3% -11.4 2.51 perf-profile.children.cycles-pp.__schedule
10.69 ± 4% -8.1 2.57 perf-profile.children.cycles-pp.schedule
9.31 ± 2% -8.0 1.31 perf-profile.children.cycles-pp.osq_lock
5.85 ± 2% -5.8 0.00 perf-profile.children.cycles-pp.flush_smp_call_function_queue
5.43 ± 2% -4.6 0.86 perf-profile.children.cycles-pp.__flush_smp_call_function_queue
4.78 ± 8% -4.5 0.32 ± 2% perf-profile.children.cycles-pp.pick_next_task_fair
4.78 ± 2% -4.1 0.67 ± 2% perf-profile.children.cycles-pp.sched_ttwu_pending
4.23 -3.3 0.94 perf-profile.children.cycles-pp.mutex_spin_on_owner
3.44 ± 3% -2.9 0.50 ± 2% perf-profile.children.cycles-pp.dequeue_entity
3.69 ± 3% -2.8 0.86 perf-profile.children.cycles-pp.dequeue_task_fair
3.88 ± 3% -2.7 1.17 perf-profile.children.cycles-pp.activate_task
3.93 ± 3% -2.6 1.31 perf-profile.children.cycles-pp.ttwu_do_activate
3.00 ± 3% -2.3 0.70 perf-profile.children.cycles-pp.update_load_avg
3.28 ± 3% -2.2 1.06 perf-profile.children.cycles-pp.enqueue_task_fair
2.93 ± 4% -2.2 0.75 perf-profile.children.cycles-pp.enqueue_entity
2.01 ± 7% -1.8 0.26 ± 2% perf-profile.children.cycles-pp.update_cfs_group
1.31 ± 2% -1.3 0.05 perf-profile.children.cycles-pp.select_idle_sibling
1.62 ± 34% -1.2 0.41 ± 25% perf-profile.children.cycles-pp.__cmd_record
1.58 ± 34% -1.2 0.40 ± 26% perf-profile.children.cycles-pp.record__finish_output
1.58 ± 34% -1.2 0.40 ± 26% perf-profile.children.cycles-pp.perf_session__process_events
1.58 ± 34% -1.2 0.39 ± 26% perf-profile.children.cycles-pp.reader__read_event
1.63 ± 2% -1.1 0.49 perf-profile.children.cycles-pp._raw_spin_lock
1.53 -1.1 0.41 perf-profile.children.cycles-pp.select_task_rq
1.48 ± 2% -1.1 0.40 perf-profile.children.cycles-pp.select_task_rq_fair
1.38 -1.0 0.34 perf-profile.children.cycles-pp.ttwu_queue_wakelist
1.14 -0.9 0.21 ± 2% perf-profile.children.cycles-pp.__smp_call_single_queue
1.20 ± 2% -0.9 0.26 ± 2% perf-profile.children.cycles-pp.prepare_task_switch
4.47 ± 2% -0.8 3.69 perf-profile.children.cycles-pp.try_to_wake_up
4.62 ± 2% -0.8 3.84 perf-profile.children.cycles-pp.autoremove_wake_function
0.88 -0.7 0.19 ± 3% perf-profile.children.cycles-pp.__update_load_avg_cfs_rq
1.06 -0.7 0.40 ± 2% perf-profile.children.cycles-pp.__list_add_valid_or_report
0.91 ± 4% -0.6 0.28 ± 3% perf-profile.children.cycles-pp.switch_mm_irqs_off
0.76 -0.6 0.20 ± 2% perf-profile.children.cycles-pp.llist_add_batch
0.69 ± 5% -0.5 0.14 ± 3% perf-profile.children.cycles-pp.___perf_sw_event
0.60 ± 2% -0.5 0.07 ± 6% perf-profile.children.cycles-pp.set_task_cpu
0.60 ± 4% -0.5 0.09 ± 5% perf-profile.children.cycles-pp.available_idle_cpu
4.87 ± 2% -0.5 4.36 perf-profile.children.cycles-pp.__wake_up_common
0.59 ± 2% -0.5 0.08 ± 5% perf-profile.children.cycles-pp.sched_mm_cid_migrate_to
0.98 ± 2% -0.5 0.48 ± 2% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
0.56 ± 2% -0.5 0.07 perf-profile.children.cycles-pp.llist_reverse_order
0.54 ± 2% -0.5 0.06 ± 6% perf-profile.children.cycles-pp.migrate_task_rq_fair
0.59 -0.5 0.12 perf-profile.children.cycles-pp.__switch_to_asm
0.90 ± 2% -0.5 0.44 ± 3% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
0.62 ± 2% -0.4 0.18 ± 2% perf-profile.children.cycles-pp.__switch_to
0.53 ± 2% -0.4 0.12 ± 4% perf-profile.children.cycles-pp.osq_unlock
0.58 ± 2% -0.4 0.21 ± 2% perf-profile.children.cycles-pp.finish_task_switch
0.80 ± 3% -0.3 0.48 perf-profile.children.cycles-pp.update_curr
0.45 ± 2% -0.3 0.20 ± 3% perf-profile.children.cycles-pp.switch_fpu_return
0.67 ± 2% -0.3 0.42 ± 4% perf-profile.children.cycles-pp.hrtimer_interrupt
0.67 ± 2% -0.3 0.42 ± 3% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
0.34 -0.2 0.12 perf-profile.children.cycles-pp.update_rq_clock_task
0.58 ± 2% -0.2 0.37 ± 2% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.53 ± 27% -0.2 0.32 ± 22% perf-profile.children.cycles-pp.process_simple
0.28 ± 18% -0.2 0.07 ± 12% perf-profile.children.cycles-pp.stress_pipeherd_read_write
0.51 ± 3% -0.2 0.32 ± 3% perf-profile.children.cycles-pp.tick_sched_timer
0.28 ± 2% -0.2 0.09 ± 4% perf-profile.children.cycles-pp.restore_fpregs_from_fpstate
0.47 ± 2% -0.2 0.31 ± 4% perf-profile.children.cycles-pp.tick_sched_handle
0.47 ± 3% -0.2 0.30 ± 3% perf-profile.children.cycles-pp.update_process_times
0.74 -0.2 0.58 perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.59 -0.2 0.43 ± 2% perf-profile.children.cycles-pp.exit_to_user_mode_prepare
0.24 ± 3% -0.2 0.09 ± 4% perf-profile.children.cycles-pp.sched_clock_cpu
2.34 -0.2 2.19 perf-profile.children.cycles-pp.mutex_unlock
0.21 -0.1 0.06 perf-profile.children.cycles-pp.update_rq_clock
0.21 ± 4% -0.1 0.07 perf-profile.children.cycles-pp.sched_clock
0.28 ± 4% -0.1 0.14 ± 3% perf-profile.children.cycles-pp.set_next_entity
0.23 ± 10% -0.1 0.10 ± 5% perf-profile.children.cycles-pp.__update_load_avg_se
0.39 ± 2% -0.1 0.26 ± 3% perf-profile.children.cycles-pp.scheduler_tick
0.83 ± 3% -0.1 0.71 perf-profile.children.cycles-pp.__list_del_entry_valid_or_report
0.20 ± 4% -0.1 0.11 ± 6% perf-profile.children.cycles-pp.perf_event_task_tick
0.20 ± 4% -0.1 0.10 ± 9% perf-profile.children.cycles-pp.perf_adjust_freq_unthr_context
0.15 ± 6% -0.1 0.06 perf-profile.children.cycles-pp.__fdget_pos
0.17 ± 5% -0.1 0.08 ± 6% perf-profile.children.cycles-pp.__irq_exit_rcu
0.19 ± 8% -0.1 0.10 ± 10% perf-profile.children.cycles-pp.copy_page_from_iter
0.14 ± 6% -0.1 0.05 perf-profile.children.cycles-pp.__fget_light
0.17 ± 9% -0.1 0.08 ± 12% perf-profile.children.cycles-pp._copy_from_iter
0.17 ± 30% -0.1 0.10 ± 3% perf-profile.children.cycles-pp.perf_tp_event
0.12 ± 13% -0.1 0.05 ± 8% perf-profile.children.cycles-pp.copyin
0.13 ± 5% -0.1 0.07 perf-profile.children.cycles-pp.security_file_permission
0.12 ± 9% -0.1 0.06 ± 9% perf-profile.children.cycles-pp.__intel_pmu_enable_all
0.11 ± 7% -0.1 0.06 ± 9% perf-profile.children.cycles-pp.apparmor_file_permission
0.14 ± 3% -0.0 0.09 ± 7% perf-profile.children.cycles-pp.reweight_entity
0.10 ± 4% -0.0 0.06 ± 6% perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.18 ± 5% -0.0 0.14 perf-profile.children.cycles-pp.cpuacct_charge
0.10 ± 4% -0.0 0.07 ± 5% perf-profile.children.cycles-pp.task_mm_cid_work
0.10 ± 4% -0.0 0.08 ± 6% perf-profile.children.cycles-pp.task_work_run
0.11 ± 6% +0.0 0.14 ± 2% perf-profile.children.cycles-pp.exit_to_user_mode_loop
0.15 ± 2% +0.0 0.19 ± 2% perf-profile.children.cycles-pp.syscall_enter_from_user_mode
0.40 ± 3% +0.0 0.44 perf-profile.children.cycles-pp.copy_page_to_iter
0.14 ± 6% +0.0 0.18 ± 2% perf-profile.children.cycles-pp.__enqueue_entity
0.38 ± 3% +0.1 0.43 perf-profile.children.cycles-pp._copy_to_iter
0.36 ± 3% +0.1 0.42 perf-profile.children.cycles-pp.copyout
0.00 +0.1 0.07 perf-profile.children.cycles-pp.irqtime_account_irq
0.04 ± 44% +0.1 0.12 ± 4% perf-profile.children.cycles-pp.pick_eevdf
0.00 +0.1 0.08 ± 4% perf-profile.children.cycles-pp.native_irq_return_iret
0.15 ± 3% +0.1 0.24 perf-profile.children.cycles-pp.__entry_text_start
0.08 +0.1 0.17 ± 5% perf-profile.children.cycles-pp.kill_fasync
0.04 ± 73% +0.1 0.14 ± 2% perf-profile.children.cycles-pp.perf_trace_sched_stat_runtime
0.00 +0.1 0.12 ± 5% perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
0.00 +0.1 0.12 ± 6% perf-profile.children.cycles-pp.check_preempt_curr
0.00 +0.2 0.20 perf-profile.children.cycles-pp.task_h_load
0.08 ± 4% +0.2 0.31 perf-profile.children.cycles-pp.wake_affine
0.00 +0.3 0.28 perf-profile.children.cycles-pp.__task_rq_lock
0.07 ± 5% +0.8 0.86 ± 2% perf-profile.children.cycles-pp.__sysvec_call_function_single
0.08 ± 4% +0.9 0.93 perf-profile.children.cycles-pp.sysvec_call_function_single
0.09 ± 8% +1.0 1.04 perf-profile.children.cycles-pp.asm_sysvec_call_function_single
61.05 +4.0 65.06 perf-profile.children.cycles-pp.read
59.44 +4.8 64.20 perf-profile.children.cycles-pp.ksys_read
59.30 +4.8 64.14 perf-profile.children.cycles-pp.vfs_read
59.07 +4.9 64.00 perf-profile.children.cycles-pp.pipe_read
11.26 +9.7 20.98 perf-profile.children.cycles-pp.finish_wait
13.03 +20.6 33.64 perf-profile.children.cycles-pp.prepare_to_wait_event
11.12 +22.6 33.68 perf-profile.children.cycles-pp.ksys_write
11.00 +22.6 33.59 perf-profile.children.cycles-pp.vfs_write
10.78 +22.7 33.45 perf-profile.children.cycles-pp.pipe_write
11.68 +22.8 34.45 perf-profile.children.cycles-pp.write
6.96 +23.7 30.64 perf-profile.children.cycles-pp.__wake_up_common_lock
71.77 +27.0 98.74 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
71.60 +27.1 98.69 perf-profile.children.cycles-pp.do_syscall_64
24.51 +52.5 76.99 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
22.25 +56.2 78.42 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
12.41 -12.4 0.00 perf-profile.self.cycles-pp.intel_idle
9.25 ± 2% -8.0 1.30 perf-profile.self.cycles-pp.osq_lock
4.21 -3.3 0.94 perf-profile.self.cycles-pp.mutex_spin_on_owner
2.00 ± 7% -1.7 0.25 ± 4% perf-profile.self.cycles-pp.update_cfs_group
2.84 -1.5 1.35 perf-profile.self.cycles-pp.prepare_to_wait_event
1.69 ± 5% -1.3 0.35 perf-profile.self.cycles-pp.update_load_avg
1.56 ± 2% -1.3 0.26 perf-profile.self.cycles-pp._raw_spin_lock
1.96 -1.3 0.69 perf-profile.self.cycles-pp.__mutex_lock
1.26 ± 2% -1.0 0.30 ± 2% perf-profile.self.cycles-pp.__schedule
0.86 -0.7 0.18 ± 4% perf-profile.self.cycles-pp.__update_load_avg_cfs_rq
1.06 -0.7 0.40 ± 2% perf-profile.self.cycles-pp.__list_add_valid_or_report
0.90 ± 4% -0.6 0.28 ± 2% perf-profile.self.cycles-pp.switch_mm_irqs_off
0.76 -0.6 0.20 ± 2% perf-profile.self.cycles-pp.llist_add_batch
2.18 -0.5 1.66 perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.60 ± 4% -0.5 0.09 ± 5% perf-profile.self.cycles-pp.available_idle_cpu
0.59 ± 2% -0.5 0.08 ± 5% perf-profile.self.cycles-pp.sched_mm_cid_migrate_to
0.56 ± 2% -0.5 0.07 perf-profile.self.cycles-pp.llist_reverse_order
0.60 ± 2% -0.5 0.13 ± 3% perf-profile.self.cycles-pp.___perf_sw_event
0.59 ± 2% -0.5 0.12 ± 3% perf-profile.self.cycles-pp.__switch_to_asm
0.58 ± 10% -0.4 0.14 perf-profile.self.cycles-pp.prepare_task_switch
0.61 ± 2% -0.4 0.18 ± 2% perf-profile.self.cycles-pp.__switch_to
0.53 ± 2% -0.4 0.12 ± 4% perf-profile.self.cycles-pp.osq_unlock
1.29 -0.3 0.96 perf-profile.self.cycles-pp.pipe_read
0.35 ± 3% -0.3 0.06 ± 6% perf-profile.self.cycles-pp.enqueue_task_fair
0.33 ± 2% -0.2 0.10 ± 4% perf-profile.self.cycles-pp.update_rq_clock_task
0.28 ± 2% -0.2 0.09 ± 4% perf-profile.self.cycles-pp.restore_fpregs_from_fpstate
0.23 ± 6% -0.2 0.06 ± 7% perf-profile.self.cycles-pp.stress_pipeherd_read_write
2.31 -0.2 2.15 perf-profile.self.cycles-pp.mutex_unlock
0.23 ± 3% -0.2 0.06 ± 7% perf-profile.self.cycles-pp.schedule
0.23 ± 3% -0.1 0.08 perf-profile.self.cycles-pp.dequeue_task_fair
0.19 ± 27% -0.1 0.06 ± 19% perf-profile.self.cycles-pp.read
0.20 ± 2% -0.1 0.08 ± 6% perf-profile.self.cycles-pp.enqueue_entity
0.21 ± 12% -0.1 0.09 perf-profile.self.cycles-pp.__update_load_avg_se
0.25 ± 5% -0.1 0.14 ± 3% perf-profile.self.cycles-pp.update_curr
0.17 ± 2% -0.1 0.05 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.82 ± 3% -0.1 0.71 perf-profile.self.cycles-pp.__list_del_entry_valid_or_report
0.14 ± 5% -0.1 0.05 perf-profile.self.cycles-pp.__fget_light
0.20 ± 4% -0.1 0.12 perf-profile.self.cycles-pp.ttwu_queue_wakelist
0.13 ± 6% -0.1 0.05 ± 8% perf-profile.self.cycles-pp.reweight_entity
0.12 ± 15% -0.1 0.05 ± 7% perf-profile.self.cycles-pp.copyin
0.15 ± 4% -0.1 0.08 ± 4% perf-profile.self.cycles-pp.vfs_read
0.17 ± 4% -0.1 0.11 ± 4% perf-profile.self.cycles-pp.switch_fpu_return
0.12 ± 9% -0.1 0.06 ± 9% perf-profile.self.cycles-pp.__intel_pmu_enable_all
0.09 ± 5% -0.1 0.04 ± 44% perf-profile.self.cycles-pp.vfs_write
0.10 ± 6% -0.0 0.06 ± 6% perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.18 ± 6% -0.0 0.14 ± 2% perf-profile.self.cycles-pp.cpuacct_charge
0.10 ± 5% -0.0 0.07 ± 7% perf-profile.self.cycles-pp.task_mm_cid_work
0.10 ± 3% +0.0 0.13 ± 4% perf-profile.self.cycles-pp.__flush_smp_call_function_queue
0.15 ± 4% +0.0 0.18 ± 2% perf-profile.self.cycles-pp.syscall_enter_from_user_mode
0.14 ± 7% +0.0 0.18 ± 2% perf-profile.self.cycles-pp.__enqueue_entity
0.00 +0.1 0.05 ± 7% perf-profile.self.cycles-pp.ksys_write
0.35 ± 3% +0.1 0.41 perf-profile.self.cycles-pp.copyout
0.47 ± 5% +0.1 0.53 ± 2% perf-profile.self.cycles-pp.pipe_write
0.00 +0.1 0.07 perf-profile.self.cycles-pp.place_entity
0.00 +0.1 0.08 ± 6% perf-profile.self.cycles-pp.check_preempt_curr
0.00 +0.1 0.08 ± 4% perf-profile.self.cycles-pp.native_irq_return_iret
0.07 ± 6% +0.1 0.17 ± 4% perf-profile.self.cycles-pp.kill_fasync
0.04 ± 75% +0.1 0.14 ± 3% perf-profile.self.cycles-pp.perf_trace_sched_stat_runtime
0.00 +0.1 0.10 ± 5% perf-profile.self.cycles-pp.exit_to_user_mode_prepare
0.01 ±223% +0.1 0.11 ± 3% perf-profile.self.cycles-pp.pick_eevdf
0.05 ± 7% +0.1 0.18 ± 2% perf-profile.self.cycles-pp.__entry_text_start
0.00 +0.2 0.20 perf-profile.self.cycles-pp.task_h_load
0.24 +0.3 0.51 perf-profile.self.cycles-pp.__wake_up_common
0.12 ± 4% +0.4 0.54 ± 2% perf-profile.self.cycles-pp.try_to_wake_up
24.49 +52.5 76.99 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath

***************************************************************************************************
lkp-csl-d02: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory
=========================================================================================
class/compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
memory/gcc-12/performance/x86_64-rhel-8.3/1/debian-11.1-x86_64-20220510.cgz/lkp-csl-d02/pipeherd/stress-ng/60s

commit:
dfaabf916b ("fs/pipe: remove unnecessary spinlock from pipe_write()")
478dbf1217 ("fs/pipe: use spinlock in pipe_read() only if there is a watch_queue")

dfaabf916b1ca83c 478dbf12176700f28d836dd03ae
---------------- ---------------------------
%stddev %change %stddev
\ | \
8603 ± 12% +17.5% 10111 ± 3% perf-c2c.HITM.local
3042 ± 14% -48.7% 1560 ± 46% uptime.idle
2.229e+09 ± 21% -67.9% 7.145e+08 ± 92% cpuidle..time
28028489 ± 3% -97.1% 810118 ± 85% cpuidle..usage
88.08 -68.0 20.13 ± 83% mpstat.cpu.all.idle%
10.35 ± 15% +67.9 78.24 ± 21% mpstat.cpu.all.sys%
88.33 -74.9% 22.18 ± 72% vmstat.cpu.id
10.81 ± 12% +615.2% 77.30 ± 20% vmstat.cpu.sy
3844276 -14.5% 3285820 vmstat.memory.cache
4.22 ± 16% +1708.7% 76.30 ± 20% vmstat.procs.r
737453 ± 16% -78.6% 157732 ± 25% vmstat.system.cs
56136 ± 4% +49.3% 83808 ± 13% vmstat.system.in
1.00 -70.0% 0.30 ± 14% stress-ng.pipeherd.context_switches_per_bogo_op
416502 ± 4% -54.2% 190940 ± 6% stress-ng.pipeherd.context_switches_per_sec
24976673 ± 4% +54.3% 38526698 ± 8% stress-ng.pipeherd.ops
416194 ± 4% +54.2% 641978 ± 8% stress-ng.pipeherd.ops_per_sec
12656 ± 8% +17042.2% 2169605 stress-ng.time.involuntary_context_switches
418.67 ± 9% +722.0% 3441 stress-ng.time.percent_of_cpu_this_job_got
256.62 ± 9% +730.2% 2130 stress-ng.time.system_time
24977642 ± 4% -62.8% 9287021 ± 7% stress-ng.time.voluntary_context_switches
874362 ± 7% -52.8% 412641 ± 9% meminfo.Active
874215 ± 7% -52.8% 412493 ± 9% meminfo.Active(anon)
3758519 -14.7% 3205853 meminfo.Cached
2362981 ± 4% -27.5% 1714057 ± 9% meminfo.Committed_AS
437679 ± 6% -22.4% 339632 ± 5% meminfo.Inactive
437498 ± 6% -22.4% 339452 ± 5% meminfo.Inactive(anon)
113085 ± 11% -41.1% 66608 ± 11% meminfo.Mapped
4522886 -13.0% 3936630 meminfo.Memused
1007947 ± 5% -54.8% 455265 ± 6% meminfo.Shmem
4699970 -12.5% 4110226 meminfo.max_used_kB
218555 ± 7% -52.8% 103125 ± 9% proc-vmstat.nr_active_anon
939642 -14.7% 801478 proc-vmstat.nr_file_pages
109380 ± 6% -22.4% 84873 ± 5% proc-vmstat.nr_inactive_anon
28279 ± 11% -41.0% 16676 ± 11% proc-vmstat.nr_mapped
251993 ± 5% -54.8% 113825 ± 6% proc-vmstat.nr_shmem
19860 -2.0% 19458 proc-vmstat.nr_slab_reclaimable
218555 ± 7% -52.8% 103125 ± 9% proc-vmstat.nr_zone_active_anon
109380 ± 6% -22.4% 84873 ± 5% proc-vmstat.nr_zone_inactive_anon
598000 ± 3% -33.1% 400291 ± 2% proc-vmstat.numa_hit
593890 ± 2% -32.6% 400270 ± 2% proc-vmstat.numa_local
312421 ± 3% -53.5% 145140 ± 2% proc-vmstat.pgactivate
629037 ± 2% -30.0% 440277 ± 4% proc-vmstat.pgalloc_normal
546.00 ± 12% +449.4% 2999 ± 20% turbostat.Avg_MHz
14.73 ± 8% +64.9 79.68 ± 19% turbostat.Busy%
4330713 ± 10% -99.8% 10550 ± 20% turbostat.C1
8.68 ± 19% -8.7 0.02 ± 33% turbostat.C1%
23233631 ± 2% -99.7% 63441 ± 4% turbostat.C1E
65.25 ± 14% -65.1 0.19 ± 10% turbostat.C1E%
81.35 ± 5% -84.3% 12.80 ± 66% turbostat.CPU%c1
0.11 ± 8% -73.1% 0.03 turbostat.IPC
4029671 ± 13% +65.0% 6649120 ± 9% turbostat.IRQ
62641 ± 3% -93.9% 3839 ± 6% turbostat.POLL
0.04 ± 14% -0.0 0.00 turbostat.POLL%
91.90 ± 9% +36.3% 125.23 ± 16% turbostat.PkgWatt
21202 ± 12% +4673.9% 1012191 sched_debug.cfs_rq:/.avg_vruntime.avg
44364 ± 10% +2314.4% 1071128 ± 2% sched_debug.cfs_rq:/.avg_vruntime.max
16887 ± 15% +5806.3% 997400 sched_debug.cfs_rq:/.avg_vruntime.min
6102 ± 4% +160.4% 15892 ± 14% sched_debug.cfs_rq:/.avg_vruntime.stddev
0.31 ± 10% +444.7% 1.66 sched_debug.cfs_rq:/.h_nr_running.avg
1.50 ± 27% +105.6% 3.08 ± 11% sched_debug.cfs_rq:/.h_nr_running.max
0.46 ± 7% +30.1% 0.60 ± 10% sched_debug.cfs_rq:/.h_nr_running.stddev
21202 ± 12% +4673.9% 1012191 sched_debug.cfs_rq:/.min_vruntime.avg
44364 ± 10% +2314.4% 1071128 ± 2% sched_debug.cfs_rq:/.min_vruntime.max
16886 ± 15% +5806.3% 997400 sched_debug.cfs_rq:/.min_vruntime.min
6102 ± 4% +160.4% 15892 ± 14% sched_debug.cfs_rq:/.min_vruntime.stddev
0.31 ± 10% +133.3% 0.71 sched_debug.cfs_rq:/.nr_running.avg
0.46 ± 7% -41.4% 0.27 ± 10% sched_debug.cfs_rq:/.nr_running.stddev
384.17 ± 2% +352.4% 1737 ± 2% sched_debug.cfs_rq:/.runnable_avg.avg
1150 ± 10% +155.9% 2944 ± 6% sched_debug.cfs_rq:/.runnable_avg.max
12.25 ± 52% +6198.6% 771.58 ± 15% sched_debug.cfs_rq:/.runnable_avg.min
248.32 ± 10% +105.2% 509.54 ± 14% sched_debug.cfs_rq:/.runnable_avg.stddev
381.95 ± 2% +117.5% 830.83 sched_debug.cfs_rq:/.util_avg.avg
1141 ± 10% +40.1% 1599 ± 10% sched_debug.cfs_rq:/.util_avg.max
12.17 ± 53% +2363.7% 299.75 ± 15% sched_debug.cfs_rq:/.util_avg.min
34.78 ± 10% +1282.8% 480.87 ± 2% sched_debug.cfs_rq:/.util_est_enqueued.avg
355.00 ± 21% +162.2% 930.75 ± 6% sched_debug.cfs_rq:/.util_est_enqueued.max
93.73 ± 12% +88.5% 176.68 ± 10% sched_debug.cfs_rq:/.util_est_enqueued.stddev
18301 ± 24% -57.5% 7772 ± 19% sched_debug.cpu.avg_idle.min
0.77 ± 3% +147.8% 1.91 ± 28% sched_debug.cpu.clock.stddev
970.32 ± 6% +155.7% 2480 ± 2% sched_debug.cpu.curr->pid.avg
1500 ± 2% -44.1% 839.20 ± 9% sched_debug.cpu.curr->pid.stddev
0.33 ± 6% +408.5% 1.67 ± 2% sched_debug.cpu.nr_running.avg
1.58 ± 28% +94.7% 3.08 ± 11% sched_debug.cpu.nr_running.max
689795 ± 4% -76.0% 165666 ± 5% sched_debug.cpu.nr_switches.avg
761385 ± 5% -71.2% 218907 ± 4% sched_debug.cpu.nr_switches.max
629289 ± 4% -76.6% 146963 ± 7% sched_debug.cpu.nr_switches.min
29571 ± 12% -45.9% 15995 ± 25% sched_debug.cpu.nr_switches.stddev
1.452e+09 ± 14% +86.2% 2.704e+09 ± 21% perf-stat.i.branch-instructions
29026461 ± 12% -38.0% 18003501 ± 20% perf-stat.i.branch-misses
1799227 ± 6% -35.0% 1169320 ± 9% perf-stat.i.cache-misses
770793 ± 16% -78.8% 163414 ± 25% perf-stat.i.context-switches
3.86 ± 40% +161.9% 10.10 ± 7% perf-stat.i.cpi
2.002e+10 ± 12% +448.0% 1.097e+11 ± 21% perf-stat.i.cpu-cycles
285495 ± 18% +570.0% 1912682 ± 20% perf-stat.i.cycles-between-cache-misses
1022908 ± 6% -47.3% 539430 ± 25% perf-stat.i.dTLB-load-misses
1.807e+09 ± 14% +62.4% 2.935e+09 ± 21% perf-stat.i.dTLB-loads
39.71 ± 15% +36.2 75.87 ± 3% perf-stat.i.iTLB-load-miss-rate%
6486811 ± 16% -82.9% 1106716 ± 25% perf-stat.i.iTLB-loads
7.01e+09 ± 14% +64.8% 1.156e+10 ± 21% perf-stat.i.instructions
2094 ± 8% +51.4% 3171 ± 17% perf-stat.i.instructions-per-iTLB-miss
0.35 ± 14% -62.1% 0.13 ± 10% perf-stat.i.ipc
0.10 ± 46% -84.4% 0.02 ± 47% perf-stat.i.major-faults
0.56 ± 12% +448.1% 3.05 ± 21% perf-stat.i.metric.GHz
261027 ± 15% -43.8% 146804 ± 21% perf-stat.i.node-loads
0.26 ± 16% -58.8% 0.11 ± 31% perf-stat.overall.MPKI
2.01 ± 7% -1.3 0.67 ± 13% perf-stat.overall.branch-miss-rate%
1.76 ± 15% -0.6 1.19 ± 30% perf-stat.overall.cache-miss-rate%
2.88 ± 8% +230.4% 9.50 perf-stat.overall.cpi
11182 ± 15% +762.2% 96416 ± 28% perf-stat.overall.cycles-between-cache-misses
0.06 ± 19% -0.0 0.02 ± 48% perf-stat.overall.dTLB-load-miss-rate%
36.83 +39.0 75.86 ± 2% perf-stat.overall.iTLB-load-miss-rate%
1863 ± 3% +79.8% 3351 ± 6% perf-stat.overall.instructions-per-iTLB-miss
0.35 ± 8% -69.9% 0.11 perf-stat.overall.ipc
1.43e+09 ± 13% +86.5% 2.668e+09 ± 21% perf-stat.ps.branch-instructions
28597432 ± 12% -37.9% 17753411 ± 20% perf-stat.ps.branch-misses
1774283 ± 6% -35.0% 1153774 ± 10% perf-stat.ps.cache-misses
759052 ± 16% -78.8% 161170 ± 25% perf-stat.ps.context-switches
1.972e+10 ± 12% +448.9% 1.083e+11 ± 20% perf-stat.ps.cpu-cycles
1008110 ± 6% -47.2% 532619 ± 26% perf-stat.ps.dTLB-load-misses
1.78e+09 ± 14% +62.6% 2.895e+09 ± 20% perf-stat.ps.dTLB-loads
6388075 ± 16% -82.9% 1091500 ± 24% perf-stat.ps.iTLB-loads
6.905e+09 ± 13% +65.1% 1.14e+10 ± 20% perf-stat.ps.instructions
0.10 ± 46% -84.5% 0.02 ± 47% perf-stat.ps.major-faults
257449 ± 15% -43.8% 144773 ± 20% perf-stat.ps.node-loads
4.73e+11 ± 3% +82.7% 8.64e+11 perf-stat.total.instructions
0.00 ± 20% -100.0% 0.00 perf-sched.sch_delay.avg.ms.__cond_resched.__mutex_lock.constprop.0.pipe_write
0.00 ±223% +1.7e+05% 0.28 ± 66% perf-sched.sch_delay.avg.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
0.01 ± 40% +716.3% 0.07 ± 10% perf-sched.sch_delay.avg.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.00 ± 20% +25442.9% 0.60 ± 25% perf-sched.sch_delay.avg.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.00 -100.0% 0.00 perf-sched.sch_delay.avg.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
0.00 ± 10% +19830.8% 0.86 ± 30% perf-sched.sch_delay.avg.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.01 ± 23% +13800.0% 0.70 ± 67% perf-sched.sch_delay.avg.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
0.00 ± 33% +1777.8% 0.03 ± 3% perf-sched.sch_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.00 ± 17% +18623.1% 0.41 ± 14% perf-sched.sch_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.00 +3379.2% 0.14 ± 33% perf-sched.sch_delay.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.00 ± 35% +226.1% 0.01 ± 3% perf-sched.sch_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.00 +5183.3% 0.11 ± 7% perf-sched.sch_delay.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
0.00 ± 14% +400.0% 0.02 ± 17% perf-sched.sch_delay.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
0.00 ± 14% +26861.9% 0.94 ± 53% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.do_select.core_sys_select.kern_select
0.01 ± 28% +856.7% 0.05 ± 55% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.00 +10516.7% 0.32 ± 19% perf-sched.sch_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.00 ± 9% +108.7% 0.01 ± 30% perf-sched.sch_delay.avg.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
0.00 ± 14% +455.0% 0.02 ± 22% perf-sched.sch_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.01 ± 47% +7563.6% 0.42 ± 58% perf-sched.sch_delay.avg.ms.syslog_print.do_syslog.kmsg_read.vfs_read
0.00 +16866.7% 0.34 ± 37% perf-sched.sch_delay.avg.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
0.01 ± 11% +263.3% 0.02 ± 29% perf-sched.sch_delay.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
0.00 ± 27% -100.0% 0.00 perf-sched.sch_delay.max.ms.__cond_resched.__mutex_lock.constprop.0.pipe_write
0.00 ± 23% +24375.0% 1.14 ± 49% perf-sched.sch_delay.max.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
0.00 ±223% +3.4e+05% 1.12 ± 69% perf-sched.sch_delay.max.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
0.72 ± 64% +962.7% 7.65 ± 17% perf-sched.sch_delay.max.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.00 ± 20% +1e+05% 2.39 ± 32% perf-sched.sch_delay.max.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.00 ± 21% -100.0% 0.00 perf-sched.sch_delay.max.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
0.01 ± 16% +40029.4% 2.27 ± 55% perf-sched.sch_delay.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.01 ± 27% +17475.8% 0.97 ± 37% perf-sched.sch_delay.max.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
0.08 ± 77% +6307.9% 4.87 ± 14% perf-sched.sch_delay.max.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.01 ± 30% +39070.8% 3.13 ± 29% perf-sched.sch_delay.max.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.01 ± 38% +8252.4% 0.88 ± 47% perf-sched.sch_delay.max.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.49 ± 88% +1842.2% 9.53 ± 45% perf-sched.sch_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
2.32 ± 9% +487.2% 13.62 ± 20% perf-sched.sch_delay.max.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
0.01 ± 20% +1054.3% 0.07 ± 23% perf-sched.sch_delay.max.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
0.01 ± 9% +32851.5% 1.81 ± 22% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
0.00 ± 17% +36980.8% 1.61 ± 53% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.do_select.core_sys_select.kern_select
0.01 ± 17% +5271.4% 0.50 ± 87% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.00 ± 27% -71.4% 0.00 ±141% perf-sched.sch_delay.max.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.pipe_write
0.01 ± 37% +27248.1% 2.37 ± 38% perf-sched.sch_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.01 ± 11% +3235.1% 0.21 ±113% perf-sched.sch_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
34.64 ±107% -97.3% 0.92 ± 52% perf-sched.sch_delay.max.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.01 ± 53% +7588.6% 0.56 ± 57% perf-sched.sch_delay.max.ms.syslog_print.do_syslog.kmsg_read.vfs_read
0.00 ± 90% +48484.6% 2.11 ± 40% perf-sched.sch_delay.max.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
0.04 ± 14% +1334.4% 0.58 ±116% perf-sched.sch_delay.max.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
0.00 +4258.3% 0.09 ± 8% perf-sched.total_sch_delay.average.ms
0.59 ± 4% +127.3% 1.35 perf-sched.total_wait_and_delay.average.ms
1531048 ± 4% -61.2% 593676 ± 2% perf-sched.total_wait_and_delay.count.ms
0.59 ± 4% +113.4% 1.26 ± 2% perf-sched.total_wait_time.average.ms
14.68 ± 52% -84.2% 2.32 ± 55% perf-sched.wait_and_delay.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
4.70 ± 73% +165.6% 12.47 ± 26% perf-sched.wait_and_delay.avg.ms.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
0.12 +60.1% 0.18 ± 12% perf-sched.wait_and_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
268.20 ± 6% -13.0% 233.42 ± 6% perf-sched.wait_and_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.37 ± 4% +137.4% 0.87 ± 2% perf-sched.wait_and_delay.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
4.11 ± 7% -23.1% 3.16 ± 7% perf-sched.wait_and_delay.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
27.41 ± 3% +136.9% 64.94 ± 3% perf-sched.wait_and_delay.avg.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
91.53 ± 7% -27.6% 66.23 ± 12% perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
116.38 ± 11% +64.2% 191.11 ± 4% perf-sched.wait_and_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
4.17 ± 64% +1300.0% 58.33 ± 19% perf-sched.wait_and_delay.count.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
75321 -42.9% 43036 ± 2% perf-sched.wait_and_delay.count.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
71.00 ±223% +87493.9% 62191 ± 2% perf-sched.wait_and_delay.count.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
1451839 ± 4% -69.5% 442901 ± 3% perf-sched.wait_and_delay.count.pipe_read.vfs_read.ksys_read.do_syscall_64
586.17 ± 4% -61.4% 226.17 ± 3% perf-sched.wait_and_delay.count.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
52.50 ± 5% +44.1% 75.67 ± 14% perf-sched.wait_and_delay.count.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
1611 ± 10% -39.0% 982.83 ± 5% perf-sched.wait_and_delay.count.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
15.07 ± 79% +828.8% 139.99 ± 29% perf-sched.wait_and_delay.max.ms.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
166.69 ±223% +501.4% 1002 perf-sched.wait_and_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.31 ± 20% -58.0% 0.13 ± 36% perf-sched.wait_time.avg.ms.__cond_resched.__mutex_lock.constprop.0.pipe_write
14.68 ± 52% -83.2% 2.46 ± 41% perf-sched.wait_time.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
4.70 ± 73% +165.5% 12.47 ± 26% perf-sched.wait_time.avg.ms.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
0.32 ± 3% +30.0% 0.42 ± 2% perf-sched.wait_time.avg.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.30 ± 17% -45.0% 0.17 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.mutex_lock.pipe_write.vfs_write.ksys_write
6.47 ± 60% -81.6% 1.19 ±162% perf-sched.wait_time.avg.ms.__cond_resched.shmem_get_folio_gfp.shmem_write_begin.generic_perform_write.shmem_file_write_iter
0.62 ±105% -91.7% 0.05 ±107% 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
268.20 ± 6% -13.1% 233.01 ± 6% perf-sched.wait_time.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.24 ± 2% +219.8% 0.75 ± 19% perf-sched.wait_time.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.01 ±166% +3612.2% 0.25 ± 49% 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
0.36 ± 4% +109.7% 0.76 ± 3% perf-sched.wait_time.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
4.10 ± 7% -23.5% 3.14 ± 8% perf-sched.wait_time.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
27.41 ± 3% +136.8% 64.92 ± 3% perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
0.32 ± 2% +335.2% 1.40 ± 6% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
91.53 ± 7% -27.7% 66.21 ± 12% perf-sched.wait_time.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
116.35 ± 11% +64.2% 191.09 ± 4% perf-sched.wait_time.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.00 ± 44% +14140.0% 0.12 ± 43% perf-sched.wait_time.avg.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
0.36 ± 4% +403.1% 1.83 ± 60% perf-sched.wait_time.max.ms.__cond_resched.__mutex_lock.constprop.0.pipe_read
15.07 ± 79% +828.6% 139.98 ± 29% perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
0.61 ± 64% +1225.8% 8.07 ± 13% perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.37 ± 6% +221.4% 1.20 ± 73% perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.pipe_write.vfs_write.ksys_write
0.39 ± 6% +435.7% 2.07 ±113% perf-sched.wait_time.max.ms.__cond_resched.pipe_read.vfs_read.ksys_read.do_syscall_64
5.10 ±207% -98.8% 0.06 ±104% 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
0.71 +325.0% 3.00 ± 29% perf-sched.wait_time.max.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.01 ±188% +64933.3% 7.80 ±130% 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
501.89 ± 99% -66.5% 168.27 ±221% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi
170.24 ±218% +488.1% 1001 perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.39 ± 4% +201.2% 1.17 ± 78% perf-sched.wait_time.max.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.pipe_read
0.73 ± 3% +553.1% 4.74 ± 21% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.01 ± 19% +16302.1% 1.31 ± 50% perf-sched.wait_time.max.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
57.90 ± 2% -57.9 0.00 perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
56.34 ± 2% -56.3 0.00 perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify
56.33 ± 2% -56.3 0.00 perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
56.30 ± 2% -56.3 0.00 perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
52.69 -52.7 0.00 perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry
52.61 ± 2% -52.6 0.00 perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
51.32 ± 2% -51.3 0.00 perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary
45.08 -45.1 0.00 perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
9.82 ± 8% -9.4 0.38 ± 71% perf-profile.calltrace.cycles-pp.__mutex_lock.pipe_read.vfs_read.ksys_read.do_syscall_64
5.69 ± 11% -5.7 0.00 perf-profile.calltrace.cycles-pp.intel_idle_irq.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
5.49 ± 15% -5.5 0.00 perf-profile.calltrace.cycles-pp.osq_lock.__mutex_lock.pipe_read.vfs_read.ksys_read
1.96 ± 5% -1.6 0.38 ± 70% perf-profile.calltrace.cycles-pp.schedule.pipe_read.vfs_read.ksys_read.do_syscall_64
1.91 ± 5% -1.5 0.38 ± 70% perf-profile.calltrace.cycles-pp.__schedule.schedule.pipe_read.vfs_read.ksys_read
1.34 ± 8% +0.2 1.56 perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_write.vfs_write
1.25 ± 8% +0.3 1.52 perf-profile.calltrace.cycles-pp.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_write
0.00 +0.7 0.70 ± 4% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
7.23 ± 10% +13.6 20.80 ± 2% perf-profile.calltrace.cycles-pp.finish_wait.pipe_read.vfs_read.ksys_read.do_syscall_64
6.74 ± 11% +14.0 20.74 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.finish_wait.pipe_read.vfs_read.ksys_read
6.30 ± 12% +14.4 20.68 ± 2% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.finish_wait.pipe_read.vfs_read
34.82 ± 5% +19.8 54.60 ± 4% perf-profile.calltrace.cycles-pp.read
34.31 ± 5% +20.1 54.45 ± 4% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.read
34.25 ± 5% +20.2 54.44 ± 4% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
33.99 ± 5% +20.4 54.37 ± 4% perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
33.92 ± 5% +20.4 54.34 ± 4% perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
33.75 ± 5% +20.5 54.24 ± 4% perf-profile.calltrace.cycles-pp.pipe_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
8.49 ± 8% +22.8 31.30 ± 5% perf-profile.calltrace.cycles-pp.prepare_to_wait_event.pipe_read.vfs_read.ksys_read.do_syscall_64
6.11 ± 13% +24.8 30.93 ± 5% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.prepare_to_wait_event.pipe_read.vfs_read.ksys_read
5.10 ± 16% +25.7 30.81 ± 5% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.prepare_to_wait_event.pipe_read.vfs_read
6.68 ± 3% +38.6 45.30 ± 5% perf-profile.calltrace.cycles-pp.write
6.38 ± 3% +38.7 45.08 ± 5% perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
6.47 ± 3% +38.7 45.20 ± 5% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write
6.30 ± 3% +38.7 45.04 ± 5% perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
6.44 ± 3% +38.7 45.19 ± 5% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
6.13 ± 3% +38.8 44.96 ± 5% perf-profile.calltrace.cycles-pp.pipe_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.94 ± 7% +40.4 42.38 ± 5% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__wake_up_common_lock.pipe_write.vfs_write.ksys_write
1.73 ± 8% +40.5 42.26 ± 5% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__wake_up_common_lock.pipe_write.vfs_write
3.61 +40.7 44.31 ± 5% perf-profile.calltrace.cycles-pp.__wake_up_common_lock.pipe_write.vfs_write.ksys_write.do_syscall_64
57.90 ± 2% -57.9 0.00 perf-profile.children.cycles-pp.secondary_startup_64_no_verify
57.90 ± 2% -57.9 0.00 perf-profile.children.cycles-pp.cpu_startup_entry
57.88 ± 2% -57.9 0.00 perf-profile.children.cycles-pp.do_idle
56.34 ± 2% -56.3 0.00 perf-profile.children.cycles-pp.start_secondary
54.08 ± 2% -54.1 0.00 perf-profile.children.cycles-pp.cpuidle_idle_call
52.75 -52.7 0.00 perf-profile.children.cycles-pp.cpuidle_enter
52.74 -52.7 0.00 perf-profile.children.cycles-pp.cpuidle_enter_state
45.08 -45.1 0.00 perf-profile.children.cycles-pp.intel_idle
11.33 ± 7% -10.7 0.61 ± 20% perf-profile.children.cycles-pp.__mutex_lock
6.79 ± 10% -6.8 0.00 perf-profile.children.cycles-pp.intel_idle_irq
6.45 ± 13% -6.2 0.22 ± 25% perf-profile.children.cycles-pp.osq_lock
3.35 ± 7% -2.7 0.63 ± 6% perf-profile.children.cycles-pp.__schedule
2.50 ± 2% -2.4 0.13 ± 31% perf-profile.children.cycles-pp.mutex_spin_on_owner
1.75 ± 3% -1.5 0.26 ± 4% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
2.04 ± 5% -1.4 0.60 ± 6% perf-profile.children.cycles-pp.schedule
1.53 ± 2% -1.0 0.48 ± 3% perf-profile.children.cycles-pp.mutex_lock
1.20 ± 4% -0.8 0.35 ± 2% perf-profile.children.cycles-pp.mutex_unlock
0.84 ± 7% -0.7 0.11 ± 4% perf-profile.children.cycles-pp.dequeue_entity
0.91 ± 6% -0.7 0.23 ± 4% perf-profile.children.cycles-pp.dequeue_task_fair
0.91 ± 7% -0.6 0.32 ± 6% perf-profile.children.cycles-pp.ttwu_do_activate
0.65 ± 3% -0.6 0.07 ± 9% perf-profile.children.cycles-pp._raw_spin_lock
0.84 ± 7% -0.6 0.28 ± 7% perf-profile.children.cycles-pp.activate_task
0.80 ± 4% -0.6 0.23 ± 5% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
0.70 ± 8% -0.6 0.14 ± 5% perf-profile.children.cycles-pp.enqueue_entity
0.78 ± 7% -0.5 0.26 ± 6% perf-profile.children.cycles-pp.enqueue_task_fair
0.55 ± 2% -0.5 0.06 ± 9% perf-profile.children.cycles-pp.__list_add_valid_or_report
0.54 ± 2% -0.5 0.08 ± 10% perf-profile.children.cycles-pp.__list_del_entry_valid_or_report
0.63 ± 3% -0.4 0.22 ± 4% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
0.62 ± 3% -0.4 0.22 ± 4% perf-profile.children.cycles-pp.hrtimer_interrupt
0.41 ± 7% -0.3 0.07 ± 11% perf-profile.children.cycles-pp.switch_mm_irqs_off
0.53 ± 6% -0.3 0.20 ± 7% perf-profile.children.cycles-pp.update_load_avg
0.46 ± 9% -0.3 0.14 ± 10% perf-profile.children.cycles-pp.pick_next_task_fair
0.51 ± 3% -0.3 0.20 ± 3% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.35 ± 13% -0.3 0.04 ± 45% perf-profile.children.cycles-pp.prepare_task_switch
0.41 ± 8% -0.3 0.13 ± 5% perf-profile.children.cycles-pp.select_task_rq
0.39 ± 9% -0.3 0.13 ± 7% perf-profile.children.cycles-pp.select_task_rq_fair
0.37 ± 4% -0.2 0.15 ± 3% perf-profile.children.cycles-pp.tick_sched_timer
0.34 ± 6% -0.2 0.15 ± 3% perf-profile.children.cycles-pp.tick_sched_handle
0.33 ± 7% -0.2 0.15 ± 6% perf-profile.children.cycles-pp.update_process_times
0.20 ± 10% -0.2 0.02 ± 99% perf-profile.children.cycles-pp.set_next_entity
0.29 ± 6% -0.2 0.13 ± 4% perf-profile.children.cycles-pp.scheduler_tick
0.21 ± 11% -0.2 0.06 ± 6% perf-profile.children.cycles-pp.perf_event_task_tick
0.21 ± 11% -0.2 0.06 ± 6% perf-profile.children.cycles-pp.perf_adjust_freq_unthr_context
0.17 ± 9% -0.1 0.03 ± 70% perf-profile.children.cycles-pp.__update_load_avg_se
0.19 ± 11% -0.1 0.06 ± 7% perf-profile.children.cycles-pp.__update_load_avg_cfs_rq
0.26 ± 6% -0.1 0.14 ± 6% perf-profile.children.cycles-pp.update_curr
0.26 ± 9% -0.1 0.14 ± 3% perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.22 ± 9% -0.1 0.12 ± 4% perf-profile.children.cycles-pp.exit_to_user_mode_prepare
0.15 ± 16% -0.1 0.06 ± 9% perf-profile.children.cycles-pp.__entry_text_start
0.11 ± 13% -0.1 0.02 ± 99% perf-profile.children.cycles-pp.anon_pipe_buf_release
0.10 ± 8% -0.1 0.03 ±100% perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.14 ± 13% -0.1 0.07 ± 7% perf-profile.children.cycles-pp.security_file_permission
0.14 ± 9% -0.1 0.07 ± 10% perf-profile.children.cycles-pp.reweight_entity
0.19 ± 8% -0.1 0.12 ± 8% perf-profile.children.cycles-pp.copy_page_to_iter
0.18 ± 10% -0.1 0.12 ± 8% perf-profile.children.cycles-pp._copy_to_iter
0.12 ± 17% -0.1 0.06 ± 9% perf-profile.children.cycles-pp.apparmor_file_permission
0.15 ± 11% -0.1 0.10 ± 6% perf-profile.children.cycles-pp.rep_movs_alternative
0.16 ± 10% -0.1 0.11 ± 7% perf-profile.children.cycles-pp.copyout
0.00 +0.1 0.05 ± 7% perf-profile.children.cycles-pp.task_tick_fair
0.00 +0.1 0.08 ± 6% perf-profile.children.cycles-pp.wake_affine
1.34 ± 8% +0.2 1.56 perf-profile.children.cycles-pp.autoremove_wake_function
1.30 ± 7% +0.2 1.53 perf-profile.children.cycles-pp.try_to_wake_up
7.24 ± 10% +13.6 20.80 ± 2% perf-profile.children.cycles-pp.finish_wait
34.88 ± 5% +19.7 54.62 ± 4% perf-profile.children.cycles-pp.read
33.99 ± 5% +20.4 54.37 ± 4% perf-profile.children.cycles-pp.ksys_read
33.93 ± 5% +20.4 54.34 ± 4% perf-profile.children.cycles-pp.vfs_read
33.78 ± 5% +20.5 54.25 ± 4% perf-profile.children.cycles-pp.pipe_read
8.50 ± 8% +22.8 31.33 ± 5% perf-profile.children.cycles-pp.prepare_to_wait_event
6.72 ± 4% +38.6 45.33 ± 5% perf-profile.children.cycles-pp.write
6.38 ± 3% +38.7 45.09 ± 5% perf-profile.children.cycles-pp.ksys_write
6.30 ± 3% +38.8 45.06 ± 5% perf-profile.children.cycles-pp.vfs_write
6.13 ± 3% +38.8 44.96 ± 5% perf-profile.children.cycles-pp.pipe_write
3.61 +40.7 44.33 ± 5% perf-profile.children.cycles-pp.__wake_up_common_lock
40.95 ± 3% +58.8 99.70 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
40.86 ± 3% +58.8 99.67 perf-profile.children.cycles-pp.do_syscall_64
15.58 ± 12% +78.2 93.75 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
15.12 ± 11% +79.6 94.76 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
45.08 -45.1 0.00 perf-profile.self.cycles-pp.intel_idle
6.48 ± 10% -6.5 0.00 perf-profile.self.cycles-pp.intel_idle_irq
6.43 ± 13% -6.2 0.22 ± 24% perf-profile.self.cycles-pp.osq_lock
2.48 ± 2% -2.4 0.12 ± 30% perf-profile.self.cycles-pp.mutex_spin_on_owner
2.00 ± 3% -1.8 0.23 ± 12% perf-profile.self.cycles-pp.__mutex_lock
1.81 ± 4% -1.6 0.26 ± 8% perf-profile.self.cycles-pp.prepare_to_wait_event
1.49 ± 2% -1.1 0.44 ± 3% perf-profile.self.cycles-pp.mutex_lock
1.98 ± 4% -1.0 1.01 ± 3% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
1.19 ± 4% -0.8 0.35 ± 2% perf-profile.self.cycles-pp.mutex_unlock
0.98 ± 40% -0.8 0.22 ± 20% perf-profile.self.cycles-pp.pipe_read
0.63 ± 4% -0.6 0.06 ± 11% perf-profile.self.cycles-pp._raw_spin_lock
0.55 ± 2% -0.5 0.06 ± 9% perf-profile.self.cycles-pp.__list_add_valid_or_report
0.54 ± 2% -0.5 0.08 ± 10% perf-profile.self.cycles-pp.__list_del_entry_valid_or_report
0.40 ± 7% -0.3 0.07 ± 11% perf-profile.self.cycles-pp.switch_mm_irqs_off
0.30 ± 11% -0.2 0.06 ± 11% perf-profile.self.cycles-pp.__schedule
0.24 ± 47% -0.1 0.10 ± 22% perf-profile.self.cycles-pp.pipe_write
0.17 ± 8% -0.1 0.02 ± 99% perf-profile.self.cycles-pp.__update_load_avg_se
0.18 ± 11% -0.1 0.06 ± 11% perf-profile.self.cycles-pp.__update_load_avg_cfs_rq
0.17 ± 8% -0.1 0.09 ± 12% perf-profile.self.cycles-pp.update_load_avg
0.11 ± 13% -0.1 0.02 ± 99% perf-profile.self.cycles-pp.anon_pipe_buf_release
0.10 ± 4% -0.1 0.03 ±100% perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.10 ± 16% -0.1 0.04 ± 45% perf-profile.self.cycles-pp.apparmor_file_permission
0.08 ± 14% -0.1 0.02 ± 99% perf-profile.self.cycles-pp.vfs_read
0.13 ± 12% -0.0 0.09 ± 9% perf-profile.self.cycles-pp.update_curr
0.13 ± 10% -0.0 0.10 ± 10% perf-profile.self.cycles-pp.rep_movs_alternative
0.06 ± 11% +0.2 0.28 ± 4% perf-profile.self.cycles-pp.try_to_wake_up
15.57 ± 12% +78.2 93.75 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath

***************************************************************************************************
lkp-csl-d02: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory
=========================================================================================
class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
os/gcc-12/performance/1HDD/ext4/x86_64-rhel-8.3/1/debian-11.1-x86_64-20220510.cgz/lkp-csl-d02/pipeherd/stress-ng/60s

commit:
dfaabf916b ("fs/pipe: remove unnecessary spinlock from pipe_write()")
478dbf1217 ("fs/pipe: use spinlock in pipe_read() only if there is a watch_queue")

dfaabf916b1ca83c 478dbf12176700f28d836dd03ae
---------------- ---------------------------
%stddev %change %stddev
\ | \
3218 ± 7% -64.0% 1159 ± 3% uptime.idle
2.15e+09 ± 10% -92.7% 1.569e+08 ± 26% cpuidle..time
28312679 ± 3% -99.2% 226773 ± 20% cpuidle..usage
88.51 -90.4% 8.53 ± 22% iostat.cpu.idle
10.66 ± 8% +751.3% 90.73 ± 2% iostat.cpu.system
88.29 -82.5 5.80 ± 34% mpstat.cpu.all.idle%
0.18 ± 6% -0.2 0.02 ±127% mpstat.cpu.all.iowait%
0.03 ± 41% -0.0 0.01 ± 72% mpstat.cpu.all.soft%
10.18 ± 9% +82.7 92.92 ± 2% mpstat.cpu.all.sys%
88.52 -90.4% 8.53 ± 22% vmstat.cpu.id
10.58 ± 7% +760.1% 90.96 ± 2% vmstat.cpu.sy
3961072 -15.3% 3355228 vmstat.memory.cache
0.06 ± 26% +60.2% 0.10 ± 26% vmstat.procs.b
4.30 ± 10% +1980.9% 89.58 ± 2% vmstat.procs.r
762268 ± 11% -77.0% 175567 ± 5% vmstat.system.cs
56813 ± 3% +62.5% 92337 ± 2% vmstat.system.in
1.00 -73.7% 0.26 ± 16% stress-ng.pipeherd.context_switches_per_bogo_op
422393 ± 3% -57.3% 180352 ± 7% stress-ng.pipeherd.context_switches_per_sec
25330501 ± 3% +65.9% 42034438 ± 9% stress-ng.pipeherd.ops
422091 ± 3% +65.9% 700420 ± 9% stress-ng.pipeherd.ops_per_sec
12279 ± 10% +17973.5% 2219247 ± 2% stress-ng.time.involuntary_context_switches
404.83 ± 8% +750.4% 3442 stress-ng.time.percent_of_cpu_this_job_got
247.92 ± 8% +759.8% 2131 stress-ng.time.system_time
25331495 ± 3% -66.0% 8602230 ± 9% stress-ng.time.voluntary_context_switches
895561 ± 4% -57.3% 382181 ± 3% meminfo.Active
879277 ± 4% -58.4% 366187 ± 3% meminfo.Active(anon)
3872564 -15.5% 3270847 meminfo.Cached
2401045 ± 3% -22.8% 1853555 meminfo.Committed_AS
475367 ± 4% -18.7% 386563 meminfo.Inactive
445059 ± 4% -19.8% 356852 meminfo.Inactive(anon)
114606 ± 7% -36.4% 72849 meminfo.Mapped
4667746 -13.1% 4054799 meminfo.Memused
1016981 ± 3% -59.1% 415879 ± 3% meminfo.Shmem
4840062 -13.2% 4200782 meminfo.max_used_kB
534.83 ± 7% +562.8% 3545 turbostat.Avg_MHz
14.40 ± 5% +79.0 93.38 turbostat.Busy%
4475560 ± 9% -99.8% 10024 ± 16% turbostat.C1
9.11 ± 15% -9.1 0.02 turbostat.C1%
23453364 ± 2% -99.7% 60473 ± 3% turbostat.C1E
66.62 ± 8% -66.4 0.21 ± 12% turbostat.C1E%
82.30 ± 3% -93.4% 5.44 ± 16% turbostat.CPU%c1
0.11 ± 8% -73.1% 0.03 turbostat.IPC
3944836 ± 6% +53.8% 6067439 ± 2% turbostat.IRQ
79658 ± 2% -93.2% 5424 ± 14% turbostat.POLL
0.05 ± 10% -0.0 0.00 turbostat.POLL%
91.93 ± 6% +55.9% 143.28 turbostat.PkgWatt
219821 ± 4% -58.4% 91547 ± 3% proc-vmstat.nr_active_anon
972204 -15.5% 821697 proc-vmstat.nr_file_pages
111279 ± 4% -19.8% 89224 proc-vmstat.nr_inactive_anon
28666 ± 7% -36.4% 18241 proc-vmstat.nr_mapped
254259 ± 3% -59.1% 103980 ± 3% proc-vmstat.nr_shmem
20769 -1.9% 20366 proc-vmstat.nr_slab_reclaimable
219821 ± 4% -58.4% 91547 ± 3% proc-vmstat.nr_zone_active_anon
111279 ± 4% -19.8% 89224 proc-vmstat.nr_zone_inactive_anon
609301 -34.1% 401281 proc-vmstat.numa_hit
609146 -34.1% 401295 proc-vmstat.numa_local
317114 ± 2% -54.7% 143501 ± 3% proc-vmstat.pgactivate
645016 -32.7% 434024 proc-vmstat.pgalloc_normal
276064 ± 2% -4.9% 262486 proc-vmstat.pgfault
265446 ± 3% -4.6% 253118 proc-vmstat.pgfree
20100 ± 11% +4962.1% 1017513 sched_debug.cfs_rq:/.avg_vruntime.avg
42918 ± 9% +2577.2% 1149014 ± 2% sched_debug.cfs_rq:/.avg_vruntime.max
15663 ± 16% +6273.5% 998340 sched_debug.cfs_rq:/.avg_vruntime.min
6190 ± 4% +314.0% 25629 ± 13% sched_debug.cfs_rq:/.avg_vruntime.stddev
0.31 ± 22% +422.6% 1.61 ± 3% sched_debug.cfs_rq:/.h_nr_running.avg
1.33 ± 35% +112.5% 2.83 ± 8% sched_debug.cfs_rq:/.h_nr_running.max
20100 ± 11% +4962.1% 1017513 sched_debug.cfs_rq:/.min_vruntime.avg
42918 ± 9% +2577.2% 1149014 ± 2% sched_debug.cfs_rq:/.min_vruntime.max
15663 ± 16% +6273.5% 998340 sched_debug.cfs_rq:/.min_vruntime.min
6190 ± 4% +314.0% 25629 ± 13% sched_debug.cfs_rq:/.min_vruntime.stddev
0.31 ± 21% +126.1% 0.70 ± 3% sched_debug.cfs_rq:/.nr_running.avg
0.47 ± 15% -39.1% 0.29 ± 11% sched_debug.cfs_rq:/.nr_running.stddev
397.84 ± 5% +330.1% 1711 ± 2% sched_debug.cfs_rq:/.runnable_avg.avg
1165 ± 14% +141.1% 2810 ± 4% sched_debug.cfs_rq:/.runnable_avg.max
19.42 ± 37% +3062.2% 614.00 ± 42% sched_debug.cfs_rq:/.runnable_avg.min
254.87 ± 13% +100.1% 509.97 ± 7% sched_debug.cfs_rq:/.runnable_avg.stddev
395.21 ± 5% +107.4% 819.58 ± 2% sched_debug.cfs_rq:/.util_avg.avg
1155 ± 14% +29.7% 1499 ± 8% sched_debug.cfs_rq:/.util_avg.max
17.83 ± 39% +1436.9% 274.08 ± 18% sched_debug.cfs_rq:/.util_avg.min
35.85 ± 23% +1205.0% 467.81 ± 4% sched_debug.cfs_rq:/.util_est_enqueued.avg
409.50 ± 22% +119.8% 900.25 ± 2% sched_debug.cfs_rq:/.util_est_enqueued.max
102.77 ± 20% +71.8% 176.52 ± 9% sched_debug.cfs_rq:/.util_est_enqueued.stddev
594564 ± 2% -15.3% 503507 ± 4% sched_debug.cpu.avg_idle.max
18062 ± 12% -61.3% 6998 ± 31% sched_debug.cpu.avg_idle.min
131393 ± 4% -13.6% 113547 ± 6% sched_debug.cpu.avg_idle.stddev
0.77 ± 4% +158.6% 2.00 ± 18% sched_debug.cpu.clock.stddev
1039 ± 13% +147.2% 2570 sched_debug.cpu.curr->pid.avg
1599 ± 5% -42.5% 919.09 ± 11% sched_debug.cpu.curr->pid.stddev
0.32 ± 16% +406.6% 1.61 ± 3% sched_debug.cpu.nr_running.avg
1.33 ± 35% +118.8% 2.92 ± 11% sched_debug.cpu.nr_running.max
699532 ± 3% -77.4% 158114 ± 6% sched_debug.cpu.nr_switches.avg
779983 ± 5% -73.8% 204106 ± 4% sched_debug.cpu.nr_switches.max
637227 ± 3% -78.4% 137662 ± 9% sched_debug.cpu.nr_switches.min
28918 ± 15% -43.3% 16398 ± 21% sched_debug.cpu.nr_switches.stddev
1.401e+09 ± 8% +127.4% 3.184e+09 perf-stat.i.branch-instructions
2.44 ± 38% -1.8 0.65 ± 25% perf-stat.i.branch-miss-rate%
25035828 ± 7% -28.6% 17879988 perf-stat.i.branch-misses
2.19 ± 11% -0.6 1.63 ± 7% perf-stat.i.cache-miss-rate%
1702174 ± 2% -38.4% 1048083 ± 2% perf-stat.i.cache-misses
795145 ± 11% -77.0% 182966 ± 5% perf-stat.i.context-switches
3.65 ± 25% +159.4% 9.47 perf-stat.i.cpi
1.966e+10 ± 7% +560.8% 1.299e+11 perf-stat.i.cpu-cycles
16144 ± 9% +23.0% 19862 ± 6% perf-stat.i.cpu-migrations
284722 ± 9% +623.7% 2060501 ± 7% perf-stat.i.cycles-between-cache-misses
1109773 ± 19% -68.8% 346133 ± 10% perf-stat.i.dTLB-load-misses
1.769e+09 ± 8% +95.9% 3.465e+09 ± 2% perf-stat.i.dTLB-loads
66506 ± 39% -40.4% 39643 ± 9% perf-stat.i.dTLB-store-misses
9.259e+08 ± 10% -30.2% 6.466e+08 ± 3% perf-stat.i.dTLB-stores
38.77 ± 8% +38.3 77.03 ± 2% perf-stat.i.iTLB-load-miss-rate%
6678944 ± 10% -81.6% 1227520 ± 5% perf-stat.i.iTLB-loads
6.754e+09 ± 8% +101.2% 1.359e+10 perf-stat.i.instructions
1867 ± 4% +75.4% 3274 ± 5% perf-stat.i.instructions-per-iTLB-miss
0.35 ± 9% -59.0% 0.15 perf-stat.i.ipc
0.55 ± 7% +560.8% 3.61 perf-stat.i.metric.GHz
328.36 ± 35% -79.3% 67.84 ± 30% perf-stat.i.metric.K/sec
116.61 ± 9% +76.5% 205.80 ± 2% perf-stat.i.metric.M/sec
271723 ± 8% -37.1% 170829 ± 3% perf-stat.i.node-loads
226836 ± 8% -21.4% 178231 ± 2% perf-stat.i.node-stores
0.25 ± 7% -69.6% 0.08 ± 3% perf-stat.overall.MPKI
1.79 -1.2 0.56 perf-stat.overall.branch-miss-rate%
1.62 ± 12% -0.7 0.93 ± 10% perf-stat.overall.cache-miss-rate%
2.92 ± 6% +227.4% 9.56 perf-stat.overall.cpi
11542 ± 7% +974.3% 124010 ± 3% perf-stat.overall.cycles-between-cache-misses
0.06 ± 23% -0.1 0.01 ± 12% perf-stat.overall.dTLB-load-miss-rate%
36.56 +41.3 77.82 ± 2% perf-stat.overall.iTLB-load-miss-rate%
1760 ± 3% +79.0% 3151 ± 5% perf-stat.overall.instructions-per-iTLB-miss
0.34 ± 5% -69.6% 0.10 perf-stat.overall.ipc
1.379e+09 ± 8% +127.2% 3.134e+09 perf-stat.ps.branch-instructions
24660045 ± 7% -28.7% 17594596 perf-stat.ps.branch-misses
1678152 ± 2% -38.5% 1031881 ± 2% perf-stat.ps.cache-misses
782993 ± 11% -77.0% 180068 ± 5% perf-stat.ps.context-switches
1.937e+10 ± 7% +560.4% 1.279e+11 perf-stat.ps.cpu-cycles
15898 ± 9% +22.9% 19547 ± 6% perf-stat.ps.cpu-migrations
1093700 ± 19% -68.8% 340896 ± 10% perf-stat.ps.dTLB-load-misses
1.742e+09 ± 8% +95.8% 3.41e+09 ± 2% perf-stat.ps.dTLB-loads
65581 ± 39% -40.5% 39007 ± 9% perf-stat.ps.dTLB-store-misses
9.119e+08 ± 10% -30.2% 6.364e+08 ± 3% perf-stat.ps.dTLB-stores
6576933 ± 10% -81.6% 1208036 ± 5% perf-stat.ps.iTLB-loads
6.652e+09 ± 8% +101.0% 1.337e+10 perf-stat.ps.instructions
267948 ± 7% -37.2% 168159 ± 3% perf-stat.ps.node-loads
223475 ± 8% -21.3% 175847 ± 2% perf-stat.ps.node-stores
4.458e+11 +89.7% 8.456e+11 perf-stat.total.instructions
0.00 ±223% +55600.0% 0.19 ± 21% perf-sched.sch_delay.avg.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
0.01 ± 76% +839.5% 0.06 ± 12% perf-sched.sch_delay.avg.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.00 +36191.7% 0.73 ± 17% perf-sched.sch_delay.avg.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.00 ± 17% -100.0% 0.00 perf-sched.sch_delay.avg.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
0.00 ± 8% +17264.0% 0.72 ± 37% perf-sched.sch_delay.avg.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.01 ± 17% +10940.6% 0.59 ±117% perf-sched.sch_delay.avg.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
0.00 ± 35% +1925.0% 0.03 ± 5% perf-sched.sch_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.00 ± 20% +16614.3% 0.39 ± 14% perf-sched.sch_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.00 +3762.5% 0.15 ± 40% perf-sched.sch_delay.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.00 ± 50% +213.0% 0.01 ± 11% perf-sched.sch_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.00 +4758.3% 0.10 ± 11% perf-sched.sch_delay.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
0.00 ± 14% +850.0% 0.03 ± 84% perf-sched.sch_delay.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
0.00 ± 20% +13977.3% 0.52 ± 33% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.do_select.core_sys_select.kern_select
0.00 ± 10% +1184.6% 0.06 ± 81% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.00 ± 19% -93.3% 0.00 ±223% perf-sched.sch_delay.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.pipe_write
0.00 ± 19% +11040.0% 0.28 ± 22% perf-sched.sch_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.00 ± 10% +7046.2% 0.31 ± 24% perf-sched.sch_delay.avg.ms.schedule_timeout.ext4_lazyinit_thread.part.0.kthread
0.00 ± 9% +552.2% 0.02 ±102% perf-sched.sch_delay.avg.ms.schedule_timeout.io_schedule_timeout.__wait_for_common.submit_bio_wait
0.00 ± 9% +100.0% 0.01 ± 30% perf-sched.sch_delay.avg.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
0.00 ± 14% +571.4% 0.02 ± 28% perf-sched.sch_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.00 ± 17% +13523.1% 0.30 ± 28% perf-sched.sch_delay.avg.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
0.01 +320.0% 0.02 ± 33% perf-sched.sch_delay.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
0.01 ± 50% +35767.6% 2.03 ± 46% perf-sched.sch_delay.max.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
0.00 ±223% +2.3e+05% 0.78 ± 16% perf-sched.sch_delay.max.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
0.47 ±139% +1516.2% 7.53 ± 29% perf-sched.sch_delay.max.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.00 ± 30% +1e+05% 2.58 ± 20% perf-sched.sch_delay.max.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.00 ± 27% -100.0% 0.00 perf-sched.sch_delay.max.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
0.01 ± 45% +28441.8% 2.62 ± 39% perf-sched.sch_delay.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.01 ± 15% +13754.3% 0.81 ± 84% perf-sched.sch_delay.max.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
0.05 ± 42% +9708.0% 4.89 ± 15% perf-sched.sch_delay.max.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.01 ± 34% +36008.0% 3.01 ± 27% perf-sched.sch_delay.max.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.01 ± 18% +17247.7% 1.27 ± 55% perf-sched.sch_delay.max.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.39 ±136% +2779.1% 11.16 ± 30% perf-sched.sch_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.00 ± 73% +173.7% 0.01 ± 40% perf-sched.sch_delay.max.ms.io_schedule.bit_wait_io.__wait_on_bit.out_of_line_wait_on_bit
2.03 ± 5% +556.3% 13.30 ± 13% perf-sched.sch_delay.max.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
0.01 ± 31% +5304.7% 0.39 ±158% perf-sched.sch_delay.max.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
0.01 ± 16% +14850.0% 0.90 ± 44% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
0.00 ± 18% +19431.0% 0.94 ± 43% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.do_select.core_sys_select.kern_select
0.01 ± 29% +5383.0% 0.43 ± 95% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.01 ± 67% -93.5% 0.00 ±223% perf-sched.sch_delay.max.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.pipe_write
0.01 ± 13% +41400.0% 2.35 ± 39% perf-sched.sch_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.01 ± 31% +15031.8% 1.11 ± 35% perf-sched.sch_delay.max.ms.schedule_timeout.ext4_lazyinit_thread.part.0.kthread
0.01 ± 17% +350.0% 0.02 ± 94% perf-sched.sch_delay.max.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
0.01 ± 10% +7702.4% 0.53 ± 90% perf-sched.sch_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
124.90 ±130% -98.6% 1.69 ±128% perf-sched.sch_delay.max.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.01 ±111% +44190.3% 2.29 ± 44% perf-sched.sch_delay.max.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
0.04 ± 12% +2205.3% 0.94 ± 82% perf-sched.sch_delay.max.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
0.00 ± 17% +3561.5% 0.08 ± 12% perf-sched.total_sch_delay.average.ms
0.60 ± 4% +137.3% 1.43 ± 2% perf-sched.total_wait_and_delay.average.ms
1555993 ± 3% -62.7% 580398 ± 2% perf-sched.total_wait_and_delay.count.ms
0.60 ± 4% +124.9% 1.35 ± 3% perf-sched.total_wait_time.average.ms
4.70 ± 66% +284.8% 18.08 ± 44% perf-sched.wait_and_delay.avg.ms.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
799.89 -20.7% 634.47 ± 7% perf-sched.wait_and_delay.avg.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.12 +51.9% 0.17 ± 19% perf-sched.wait_and_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.36 ± 3% +146.9% 0.89 ± 2% perf-sched.wait_and_delay.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
26.35 +143.3% 64.11 ± 4% perf-sched.wait_and_delay.avg.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
369.62 ± 6% +7.8% 398.37 ± 5% perf-sched.wait_and_delay.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
6.11 ± 6% +12.4% 6.87 ± 6% perf-sched.wait_and_delay.avg.ms.schedule_timeout.ext4_lazyinit_thread.part.0.kthread
81.79 ± 6% -20.5% 65.05 ± 7% perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
121.06 ± 10% +66.4% 201.44 ± 5% perf-sched.wait_and_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
18.67 ± 28% +546.4% 120.67 ± 49% perf-sched.wait_and_delay.count.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
1.67 ± 66% +2940.0% 50.67 ± 10% perf-sched.wait_and_delay.count.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
75350 -41.5% 44079 ± 2% perf-sched.wait_and_delay.count.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
1476824 ± 3% -71.1% 427269 ± 4% perf-sched.wait_and_delay.count.pipe_read.vfs_read.ksys_read.do_syscall_64
599.33 ± 3% -62.9% 222.17 ± 3% perf-sched.wait_and_delay.count.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
58.17 ± 4% +30.7% 76.00 ± 7% perf-sched.wait_and_delay.count.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
1536 ± 11% -38.7% 941.17 ± 5% perf-sched.wait_and_delay.count.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
6.25 ± 59% +4653.5% 296.94 ±107% perf-sched.wait_and_delay.max.ms.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
2501 ± 44% +40.8% 3523 ± 14% perf-sched.wait_and_delay.max.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
14.63 ± 65% -83.5% 2.42 ±202% perf-sched.wait_time.avg.ms.__cond_resched.__alloc_pages.__folio_alloc.vma_alloc_folio.shmem_alloc_folio
0.31 ± 2% -39.6% 0.19 ± 8% perf-sched.wait_time.avg.ms.__cond_resched.__mutex_lock.constprop.0.pipe_read
0.00 ±223% +3033.3% 0.05 ± 64% perf-sched.wait_time.avg.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
4.70 ± 66% +284.6% 18.07 ± 43% perf-sched.wait_time.avg.ms.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
0.31 ± 3% +36.2% 0.43 ± 3% perf-sched.wait_time.avg.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.31 ± 3% -40.9% 0.18 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.pipe_read.vfs_read.ksys_read.do_syscall_64
0.00 ±107% +8.4e+06% 250.60 ±152% perf-sched.wait_time.avg.ms.__cond_resched.zap_pmd_range.isra.0.unmap_page_range
799.88 -20.8% 633.74 ± 7% perf-sched.wait_time.avg.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.24 +276.8% 0.91 ± 6% perf-sched.wait_time.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.36 ± 3% +121.4% 0.80 ± 4% perf-sched.wait_time.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
26.35 +143.3% 64.10 ± 5% perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
369.62 ± 6% +7.8% 398.31 ± 5% perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.32 ± 15% -75.5% 0.08 ± 59% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.pipe_write
0.33 ± 3% +326.7% 1.39 ± 14% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
81.79 ± 6% -20.5% 65.02 ± 7% perf-sched.wait_time.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
120.97 ± 10% +66.5% 201.42 ± 5% perf-sched.wait_time.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.00 ± 99% +1.6e+06% 7.75 ±219% perf-sched.wait_time.avg.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
0.35 ± 8% +197.0% 1.04 ± 33% perf-sched.wait_time.max.ms.__cond_resched.__mutex_lock.constprop.0.pipe_read
0.00 ±223% +19500.0% 0.29 ± 73% perf-sched.wait_time.max.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
6.25 ± 59% +4653.3% 296.93 ±107% perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
0.39 ± 5% +2162.3% 8.88 ± 12% perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.34 ± 10% +282.9% 1.31 ± 46% perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.pipe_write.vfs_write.ksys_write
0.37 ± 6% +255.4% 1.32 ± 46% perf-sched.wait_time.max.ms.__cond_resched.pipe_read.vfs_read.ksys_read.do_syscall_64
0.00 ±101% +9.6e+06% 334.29 ±141% perf-sched.wait_time.max.ms.__cond_resched.zap_pmd_range.isra.0.unmap_page_range
0.72 +395.7% 3.55 ± 15% perf-sched.wait_time.max.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
7.15 ± 65% +13915.0% 1001 perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
5.00 -13.6% 4.32 ± 8% perf-sched.wait_time.max.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
0.37 ± 8% -66.8% 0.12 ± 70% perf-sched.wait_time.max.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.pipe_write
0.71 ± 2% +562.9% 4.74 ± 18% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
2501 ± 44% +40.8% 3523 ± 14% perf-sched.wait_time.max.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.01 ± 14% +2.1e+06% 168.01 ±221% perf-sched.wait_time.max.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
58.44 ± 2% -58.4 0.00 perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
56.88 -56.9 0.00 perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify
56.88 -56.9 0.00 perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
56.84 -56.8 0.00 perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
53.06 -53.1 0.00 perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry
53.03 -53.0 0.00 perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
51.71 -51.7 0.00 perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary
45.22 -45.2 0.00 perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
9.56 ± 7% -9.4 0.19 ±141% perf-profile.calltrace.cycles-pp.__mutex_lock.pipe_read.vfs_read.ksys_read.do_syscall_64
5.91 ± 8% -5.9 0.00 perf-profile.calltrace.cycles-pp.intel_idle_irq.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
1.69 ± 7% +0.1 1.82 perf-profile.calltrace.cycles-pp.__wake_up_common.__wake_up_common_lock.pipe_write.vfs_write.ksys_write
1.37 ± 8% +0.2 1.56 perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_write.vfs_write
1.28 ± 8% +0.2 1.52 perf-profile.calltrace.cycles-pp.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_write
0.00 +0.7 0.73 ± 4% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
6.95 ± 10% +13.0 19.97 ± 3% perf-profile.calltrace.cycles-pp.finish_wait.pipe_read.vfs_read.ksys_read.do_syscall_64
6.48 ± 11% +13.4 19.91 ± 3% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.finish_wait.pipe_read.vfs_read.ksys_read
6.04 ± 11% +13.8 19.84 ± 3% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.finish_wait.pipe_read.vfs_read
34.20 ± 4% +17.5 51.74 ± 5% perf-profile.calltrace.cycles-pp.read
33.65 ± 4% +17.9 51.58 ± 5% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.read
33.59 ± 4% +18.0 51.56 ± 5% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
33.33 ± 4% +18.2 51.51 ± 5% perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
33.26 ± 4% +18.2 51.47 ± 5% perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
33.07 ± 4% +18.3 51.36 ± 5% perf-profile.calltrace.cycles-pp.pipe_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
8.24 ± 7% +21.2 29.46 ± 7% perf-profile.calltrace.cycles-pp.prepare_to_wait_event.pipe_read.vfs_read.ksys_read.do_syscall_64
5.84 ± 11% +23.3 29.11 ± 7% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.prepare_to_wait_event.pipe_read.vfs_read.ksys_read
4.75 ± 15% +24.3 29.00 ± 7% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.prepare_to_wait_event.pipe_read.vfs_read
6.75 ± 4% +41.4 48.16 ± 6% perf-profile.calltrace.cycles-pp.write
6.45 ± 3% +41.5 47.91 ± 6% perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
6.54 ± 3% +41.5 48.05 ± 6% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write
6.36 ± 3% +41.5 47.88 ± 6% perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
6.51 ± 3% +41.5 48.04 ± 6% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
6.18 ± 3% +41.6 47.79 ± 6% perf-profile.calltrace.cycles-pp.pipe_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.86 ± 5% +43.3 45.18 ± 6% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__wake_up_common_lock.pipe_write.vfs_write.ksys_write
1.64 ± 6% +43.4 45.06 ± 6% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__wake_up_common_lock.pipe_write.vfs_write
3.58 +43.6 47.14 ± 6% perf-profile.calltrace.cycles-pp.__wake_up_common_lock.pipe_write.vfs_write.ksys_write.do_syscall_64
58.44 ± 2% -58.4 0.00 perf-profile.children.cycles-pp.secondary_startup_64_no_verify
58.44 ± 2% -58.4 0.00 perf-profile.children.cycles-pp.cpu_startup_entry
58.41 ± 2% -58.4 0.00 perf-profile.children.cycles-pp.do_idle
56.88 -56.9 0.00 perf-profile.children.cycles-pp.start_secondary
54.48 -54.5 0.00 perf-profile.children.cycles-pp.cpuidle_idle_call
53.11 -53.1 0.00 perf-profile.children.cycles-pp.cpuidle_enter
53.10 -53.1 0.00 perf-profile.children.cycles-pp.cpuidle_enter_state
45.22 -45.2 0.00 perf-profile.children.cycles-pp.intel_idle
11.06 ± 6% -10.6 0.51 ± 24% perf-profile.children.cycles-pp.__mutex_lock
6.98 ± 8% -7.0 0.00 perf-profile.children.cycles-pp.intel_idle_irq
6.16 ± 11% -6.0 0.18 ± 31% perf-profile.children.cycles-pp.osq_lock
3.43 ± 6% -2.8 0.60 ± 9% perf-profile.children.cycles-pp.__schedule
2.51 -2.4 0.09 ± 47% perf-profile.children.cycles-pp.mutex_spin_on_owner
2.09 ± 4% -1.5 0.57 ± 9% perf-profile.children.cycles-pp.schedule
1.72 ± 2% -1.5 0.26 ± 3% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
1.50 ± 3% -1.0 0.50 ± 3% perf-profile.children.cycles-pp.mutex_lock
1.22 ± 3% -0.9 0.35 perf-profile.children.cycles-pp.mutex_unlock
0.90 ± 6% -0.8 0.10 ± 10% perf-profile.children.cycles-pp.dequeue_entity
0.97 ± 6% -0.8 0.21 ± 9% perf-profile.children.cycles-pp.dequeue_task_fair
0.95 ± 9% -0.7 0.30 ± 11% perf-profile.children.cycles-pp.ttwu_do_activate
0.88 ± 9% -0.6 0.25 ± 10% perf-profile.children.cycles-pp.activate_task
0.74 ± 9% -0.6 0.13 ± 10% perf-profile.children.cycles-pp.enqueue_entity
0.83 ± 9% -0.6 0.24 ± 10% perf-profile.children.cycles-pp.enqueue_task_fair
0.65 ± 3% -0.6 0.07 ± 11% perf-profile.children.cycles-pp._raw_spin_lock
0.78 ± 5% -0.5 0.23 ± 4% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
0.55 ± 2% -0.5 0.06 ± 13% perf-profile.children.cycles-pp.__list_add_valid_or_report
0.52 ± 2% -0.4 0.08 ± 10% perf-profile.children.cycles-pp.__list_del_entry_valid_or_report
0.62 ± 5% -0.4 0.22 ± 3% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
0.61 ± 5% -0.4 0.22 ± 3% perf-profile.children.cycles-pp.hrtimer_interrupt
0.56 ± 5% -0.4 0.19 ± 9% perf-profile.children.cycles-pp.update_load_avg
0.42 ± 8% -0.3 0.07 ± 11% perf-profile.children.cycles-pp.switch_mm_irqs_off
0.45 ± 9% -0.3 0.13 ± 9% perf-profile.children.cycles-pp.pick_next_task_fair
0.51 ± 5% -0.3 0.19 ± 4% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.36 ± 8% -0.3 0.04 ± 71% perf-profile.children.cycles-pp.prepare_task_switch
0.42 ± 12% -0.3 0.12 ± 10% perf-profile.children.cycles-pp.select_task_rq
0.39 ± 12% -0.3 0.12 ± 10% perf-profile.children.cycles-pp.select_task_rq_fair
0.35 ± 7% -0.2 0.15 ± 6% perf-profile.children.cycles-pp.tick_sched_timer
0.20 ± 9% -0.2 0.02 ± 99% perf-profile.children.cycles-pp.set_next_entity
0.32 ± 5% -0.2 0.14 ± 4% perf-profile.children.cycles-pp.tick_sched_handle
0.31 ± 5% -0.2 0.14 ± 4% perf-profile.children.cycles-pp.update_process_times
0.19 ± 7% -0.1 0.05 ± 8% perf-profile.children.cycles-pp.perf_event_task_tick
0.26 ± 5% -0.1 0.13 ± 5% perf-profile.children.cycles-pp.scheduler_tick
0.20 ± 10% -0.1 0.06 ± 9% perf-profile.children.cycles-pp.__update_load_avg_cfs_rq
0.19 ± 7% -0.1 0.05 ± 8% perf-profile.children.cycles-pp.perf_adjust_freq_unthr_context
0.27 ± 10% -0.1 0.13 ± 9% perf-profile.children.cycles-pp.update_curr
0.17 ± 6% -0.1 0.04 ± 45% perf-profile.children.cycles-pp.__update_load_avg_se
0.26 ± 5% -0.1 0.15 ± 4% perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.22 ± 6% -0.1 0.12 ± 4% perf-profile.children.cycles-pp.exit_to_user_mode_prepare
0.16 ± 8% -0.1 0.07 ± 11% perf-profile.children.cycles-pp.__entry_text_start
0.12 ± 13% -0.1 0.03 ± 70% perf-profile.children.cycles-pp.anon_pipe_buf_release
0.16 ± 10% -0.1 0.07 ± 12% perf-profile.children.cycles-pp.reweight_entity
0.15 ± 13% -0.1 0.07 ± 10% perf-profile.children.cycles-pp.security_file_permission
0.13 ± 12% -0.1 0.06 ± 7% perf-profile.children.cycles-pp.apparmor_file_permission
0.10 ± 13% -0.1 0.04 ± 71% perf-profile.children.cycles-pp.__fdget_pos
0.11 ± 9% -0.1 0.05 perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.20 ± 8% -0.1 0.14 ± 8% perf-profile.children.cycles-pp.copy_page_to_iter
0.18 ± 10% -0.1 0.13 ± 8% perf-profile.children.cycles-pp._copy_to_iter
0.15 ± 13% -0.0 0.11 ± 8% perf-profile.children.cycles-pp.rep_movs_alternative
0.12 ± 12% -0.0 0.08 ± 19% perf-profile.children.cycles-pp.copy_page_from_iter
0.00 +0.1 0.05 perf-profile.children.cycles-pp.exit_to_user_mode_loop
0.00 +0.1 0.06 ± 9% perf-profile.children.cycles-pp.task_tick_fair
0.00 +0.1 0.07 ± 10% perf-profile.children.cycles-pp.wake_affine
1.69 ± 7% +0.1 1.83 perf-profile.children.cycles-pp.__wake_up_common
1.38 ± 8% +0.2 1.56 perf-profile.children.cycles-pp.autoremove_wake_function
1.34 ± 8% +0.2 1.54 perf-profile.children.cycles-pp.try_to_wake_up
6.96 ± 10% +13.0 19.97 ± 3% perf-profile.children.cycles-pp.finish_wait
34.26 ± 4% +17.5 51.76 ± 5% perf-profile.children.cycles-pp.read
33.33 ± 4% +18.2 51.51 ± 5% perf-profile.children.cycles-pp.ksys_read
33.27 ± 4% +18.2 51.47 ± 5% perf-profile.children.cycles-pp.vfs_read
33.09 ± 4% +18.3 51.38 ± 5% perf-profile.children.cycles-pp.pipe_read
8.25 ± 7% +21.2 29.48 ± 7% perf-profile.children.cycles-pp.prepare_to_wait_event
6.80 ± 4% +41.4 48.19 ± 6% perf-profile.children.cycles-pp.write
6.45 ± 3% +41.5 47.92 ± 6% perf-profile.children.cycles-pp.ksys_write
6.37 ± 3% +41.5 47.89 ± 6% perf-profile.children.cycles-pp.vfs_write
6.18 ± 3% +41.6 47.79 ± 6% perf-profile.children.cycles-pp.pipe_write
3.58 +43.6 47.16 ± 6% perf-profile.children.cycles-pp.__wake_up_common_lock
40.36 ± 3% +59.3 99.69 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
40.27 ± 3% +59.4 99.66 perf-profile.children.cycles-pp.do_syscall_64
14.85 ± 11% +79.1 93.91 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
14.51 ± 9% +80.4 94.95 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
45.22 -45.2 0.00 perf-profile.self.cycles-pp.intel_idle
6.68 ± 8% -6.7 0.00 perf-profile.self.cycles-pp.intel_idle_irq
6.15 ± 11% -6.0 0.18 ± 32% perf-profile.self.cycles-pp.osq_lock
2.50 -2.4 0.09 ± 49% perf-profile.self.cycles-pp.mutex_spin_on_owner
1.99 ± 3% -1.8 0.21 ± 11% perf-profile.self.cycles-pp.__mutex_lock
1.82 ± 3% -1.6 0.23 ± 5% perf-profile.self.cycles-pp.prepare_to_wait_event
2.08 ± 6% -1.0 1.04 ± 3% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
1.46 ± 2% -1.0 0.44 ± 4% perf-profile.self.cycles-pp.mutex_lock
1.07 ± 34% -0.9 0.18 ± 29% perf-profile.self.cycles-pp.pipe_read
1.21 ± 3% -0.9 0.35 perf-profile.self.cycles-pp.mutex_unlock
0.64 ± 2% -0.6 0.06 ± 11% perf-profile.self.cycles-pp._raw_spin_lock
0.55 ± 2% -0.5 0.06 ± 13% perf-profile.self.cycles-pp.__list_add_valid_or_report
0.51 ± 2% -0.4 0.08 ± 8% perf-profile.self.cycles-pp.__list_del_entry_valid_or_report
0.41 ± 8% -0.3 0.07 ± 13% perf-profile.self.cycles-pp.switch_mm_irqs_off
0.32 ± 8% -0.3 0.05 ± 45% perf-profile.self.cycles-pp.__schedule
0.27 ± 37% -0.2 0.08 ± 36% perf-profile.self.cycles-pp.pipe_write
0.19 ± 9% -0.1 0.06 ± 9% perf-profile.self.cycles-pp.__update_load_avg_cfs_rq
0.16 ± 6% -0.1 0.04 ± 44% perf-profile.self.cycles-pp.__update_load_avg_se
0.19 ± 3% -0.1 0.08 ± 14% perf-profile.self.cycles-pp.update_load_avg
0.12 ± 13% -0.1 0.03 ± 70% perf-profile.self.cycles-pp.anon_pipe_buf_release
0.10 ± 19% -0.1 0.03 ± 70% perf-profile.self.cycles-pp.read
0.11 ± 12% -0.1 0.06 ± 6% perf-profile.self.cycles-pp.apparmor_file_permission
0.14 ± 9% -0.1 0.09 ± 8% perf-profile.self.cycles-pp.update_curr
0.09 ± 14% -0.1 0.03 ± 70% perf-profile.self.cycles-pp.vfs_read
0.10 ± 9% -0.1 0.05 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.08 ± 12% -0.0 0.02 ± 99% perf-profile.self.cycles-pp.vfs_write
0.05 ± 45% +0.2 0.29 perf-profile.self.cycles-pp.try_to_wake_up
14.84 ± 11% +79.1 93.91 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath

***************************************************************************************************
lkp-csl-d02: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 128G memory
=========================================================================================
class/compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
pipe/gcc-12/performance/x86_64-rhel-8.3/1/debian-11.1-x86_64-20220510.cgz/lkp-csl-d02/pipeherd/stress-ng/60s

commit:
dfaabf916b ("fs/pipe: remove unnecessary spinlock from pipe_write()")
478dbf1217 ("fs/pipe: use spinlock in pipe_read() only if there is a watch_queue")

dfaabf916b1ca83c 478dbf12176700f28d836dd03ae
---------------- ---------------------------
%stddev %change %stddev
\ | \
2706 ± 2% -67.7% 874.90 ± 9% uptime.idle
1.99e+09 ± 2% -91.3% 1.735e+08 ± 44% cpuidle..time
27596300 ± 4% -99.1% 243213 ± 33% cpuidle..usage
87.25 -80.7 6.54 ± 50% mpstat.cpu.all.idle%
0.02 ± 12% -0.0 0.01 ± 86% mpstat.cpu.all.soft%
11.25 ± 10% +80.6 91.89 ± 3% mpstat.cpu.all.sys%
87.49 -89.4% 9.28 ± 33% vmstat.cpu.id
11.51 ± 10% +681.0% 89.93 ± 3% vmstat.cpu.sy
3810602 -14.8% 3247858 vmstat.memory.cache
4.93 ± 7% +1711.7% 89.39 ± 3% vmstat.procs.r
787528 ± 4% -77.6% 176046 ± 6% vmstat.system.cs
58145 +56.4% 90930 ± 2% vmstat.system.in
1.00 -73.3% 0.27 ± 16% stress-ng.pipeherd.context_switches_per_bogo_op
413282 ± 4% -55.8% 182721 ± 6% stress-ng.pipeherd.context_switches_per_sec
24783439 ± 4% +67.1% 41421976 ± 9% stress-ng.pipeherd.ops
412974 ± 4% +67.1% 690219 ± 9% stress-ng.pipeherd.ops_per_sec
12734 ± 10% +17284.8% 2213931 ± 2% stress-ng.time.involuntary_context_switches
419.00 ± 8% +720.2% 3436 stress-ng.time.percent_of_cpu_this_job_got
256.78 ± 9% +728.5% 2127 stress-ng.time.system_time
24784402 ± 4% -64.7% 8749587 ± 8% stress-ng.time.voluntary_context_switches
832100 ± 4% -55.9% 367365 ± 4% meminfo.Active
831955 ± 4% -55.9% 367209 ± 4% meminfo.Active(anon)
3725457 -15.0% 3166933 meminfo.Cached
2407415 -23.8% 1835476 meminfo.Committed_AS
450884 -21.8% 352604 meminfo.Inactive
450704 -21.8% 352440 meminfo.Inactive(anon)
118763 -39.0% 72428 ± 2% meminfo.Mapped
4501461 -12.8% 3927452 meminfo.Memused
974916 ± 4% -57.3% 416402 ± 3% meminfo.Shmem
4668198 -12.6% 4078843 meminfo.max_used_kB
585.00 ± 6% +502.4% 3524 ± 3% turbostat.Avg_MHz
15.46 ± 6% +77.4 92.83 ± 3% turbostat.Busy%
4234423 ± 11% -99.8% 8757 ± 13% turbostat.C1
9.09 ± 9% -9.1 0.02 turbostat.C1%
23137625 ± 2% -99.7% 60924 ± 2% turbostat.C1E
70.26 -70.0 0.21 ± 3% turbostat.C1E%
83.54 -93.1% 5.76 ± 25% turbostat.CPU%c1
0.12 ± 4% -73.9% 0.03 turbostat.IPC
3797086 +58.8% 6031215 ± 2% turbostat.IRQ
70205 ± 2% -94.4% 3916 ± 17% turbostat.POLL
0.04 ± 10% -0.0 0.00 turbostat.POLL%
96.94 +47.9% 143.36 ± 2% turbostat.PkgWatt
207990 ± 4% -55.9% 91807 ± 4% proc-vmstat.nr_active_anon
931391 -15.0% 791754 proc-vmstat.nr_file_pages
112697 -21.8% 88124 proc-vmstat.nr_inactive_anon
29706 -39.0% 18121 ± 2% proc-vmstat.nr_mapped
243750 ± 4% -57.3% 104115 ± 3% proc-vmstat.nr_shmem
19827 -2.0% 19427 proc-vmstat.nr_slab_reclaimable
207990 ± 4% -55.9% 91807 ± 4% proc-vmstat.nr_zone_active_anon
112697 -21.8% 88124 proc-vmstat.nr_zone_inactive_anon
592754 ± 2% -33.9% 391886 proc-vmstat.numa_hit
590194 ± 2% -32.8% 396447 ± 3% proc-vmstat.numa_local
311548 ± 3% -54.3% 142271 ± 2% proc-vmstat.pgactivate
621508 ± 2% -31.9% 423150 proc-vmstat.pgalloc_normal
272471 -2.9% 264503 proc-vmstat.pgfault
21335 ± 12% +4675.1% 1018778 sched_debug.cfs_rq:/.avg_vruntime.avg
44329 ± 12% +2339.0% 1081194 ± 2% sched_debug.cfs_rq:/.avg_vruntime.max
16832 ± 14% +5838.5% 999612 sched_debug.cfs_rq:/.avg_vruntime.min
6139 ± 6% +181.1% 17255 ± 14% sched_debug.cfs_rq:/.avg_vruntime.stddev
0.29 ± 12% +477.4% 1.66 ± 2% sched_debug.cfs_rq:/.h_nr_running.avg
1.17 ± 20% +142.9% 2.83 ± 13% sched_debug.cfs_rq:/.h_nr_running.max
0.45 ± 8% +30.5% 0.58 ± 4% sched_debug.cfs_rq:/.h_nr_running.stddev
79.99 ± 29% +51.1% 120.89 ± 13% sched_debug.cfs_rq:/.load_avg.avg
1.08 ± 62% +776.9% 9.50 ± 8% sched_debug.cfs_rq:/.load_avg.min
21335 ± 12% +4675.1% 1018778 sched_debug.cfs_rq:/.min_vruntime.avg
44329 ± 12% +2339.0% 1081194 ± 2% sched_debug.cfs_rq:/.min_vruntime.max
16832 ± 14% +5838.5% 999612 sched_debug.cfs_rq:/.min_vruntime.min
6139 ± 6% +181.1% 17255 ± 14% sched_debug.cfs_rq:/.min_vruntime.stddev
0.29 ± 12% +140.0% 0.69 sched_debug.cfs_rq:/.nr_running.avg
0.45 ± 8% -44.9% 0.25 ± 4% sched_debug.cfs_rq:/.nr_running.stddev
380.03 ± 6% +363.6% 1761 ± 2% sched_debug.cfs_rq:/.runnable_avg.avg
1172 ± 17% +148.7% 2914 ± 6% sched_debug.cfs_rq:/.runnable_avg.max
16.92 ± 39% +3556.7% 618.58 ± 40% sched_debug.cfs_rq:/.runnable_avg.min
255.57 ± 13% +97.7% 505.25 ± 8% sched_debug.cfs_rq:/.runnable_avg.stddev
377.64 ± 6% +121.6% 836.86 sched_debug.cfs_rq:/.util_avg.avg
16.50 ± 41% +1693.4% 295.92 ± 18% sched_debug.cfs_rq:/.util_avg.min
29.99 ± 31% +1542.6% 492.56 ± 5% sched_debug.cfs_rq:/.util_est_enqueued.avg
408.67 ± 23% +149.2% 1018 ± 12% sched_debug.cfs_rq:/.util_est_enqueued.max
93.96 ± 26% +109.6% 196.95 ± 10% sched_debug.cfs_rq:/.util_est_enqueued.stddev
238216 ± 5% -10.3% 213762 ± 4% sched_debug.cpu.avg_idle.avg
605848 ± 6% -14.9% 515585 sched_debug.cpu.avg_idle.max
31407 ± 65% -76.8% 7295 ± 19% sched_debug.cpu.avg_idle.min
0.74 ± 3% +173.1% 2.02 ± 13% sched_debug.cpu.clock.stddev
929.06 ± 15% +161.3% 2427 sched_debug.cpu.curr->pid.avg
1488 ± 5% -44.8% 821.94 ± 8% sched_debug.cpu.curr->pid.stddev
0.30 ± 10% +454.3% 1.66 sched_debug.cpu.nr_running.avg
1.17 ± 20% +142.9% 2.83 ± 13% sched_debug.cpu.nr_running.max
0.46 ± 6% +26.4% 0.58 ± 5% sched_debug.cpu.nr_running.stddev
684980 ± 4% -76.7% 159497 ± 5% sched_debug.cpu.nr_switches.avg
759516 ± 4% -74.0% 197100 ± 3% sched_debug.cpu.nr_switches.max
624974 ± 3% -77.8% 139035 ± 8% sched_debug.cpu.nr_switches.min
28080 ± 15% -46.3% 15076 ± 17% sched_debug.cpu.nr_switches.stddev
5.19 ± 2% +13.6% 5.90 ± 7% sched_debug.cpu.nr_uninterruptible.stddev
1.57e+09 +108.0% 3.265e+09 ± 3% perf-stat.i.branch-instructions
2.04 ± 8% -1.1 0.91 ± 37% perf-stat.i.branch-miss-rate%
31772550 ± 4% -24.2% 24086374 ± 3% perf-stat.i.branch-misses
1817847 ± 2% -33.0% 1217441 ± 3% perf-stat.i.cache-misses
818713 ± 4% -77.5% 183823 ± 6% perf-stat.i.context-switches
3.14 ± 5% +195.4% 9.28 perf-stat.i.cpi
2.142e+10 ± 6% +503.3% 1.292e+11 ± 3% perf-stat.i.cpu-cycles
300745 ± 10% +488.2% 1769110 ± 5% perf-stat.i.cycles-between-cache-misses
1033250 ± 8% -65.9% 352633 ± 11% perf-stat.i.dTLB-load-misses
1.947e+09 +81.8% 3.538e+09 ± 3% perf-stat.i.dTLB-loads
54076 ± 20% -27.8% 39051 ± 12% perf-stat.i.dTLB-store-misses
9.853e+08 ± 3% -32.0% 6.703e+08 ± 4% perf-stat.i.dTLB-stores
36.72 ± 2% +40.3 77.01 ± 2% perf-stat.i.iTLB-load-miss-rate%
6882922 ± 3% -82.0% 1236826 ± 6% perf-stat.i.iTLB-loads
7.581e+09 +84.8% 1.401e+10 ± 3% perf-stat.i.instructions
2265 ± 4% +55.9% 3531 ± 5% perf-stat.i.instructions-per-iTLB-miss
0.37 ± 5% -60.4% 0.15 perf-stat.i.ipc
0.60 ± 6% +503.3% 3.59 ± 3% perf-stat.i.metric.GHz
254.50 ± 8% -67.0% 84.10 ± 50% perf-stat.i.metric.K/sec
127.96 +64.5% 210.49 ± 3% perf-stat.i.metric.M/sec
2836 -5.3% 2686 perf-stat.i.minor-faults
284823 ± 3% -40.3% 170117 ± 3% perf-stat.i.node-loads
234762 ± 2% -24.6% 176899 ± 3% perf-stat.i.node-stores
2836 -5.3% 2686 perf-stat.i.page-faults
0.24 ± 2% -63.7% 0.09 ± 5% perf-stat.overall.MPKI
2.02 ± 2% -1.3 0.74 perf-stat.overall.branch-miss-rate%
1.72 ± 7% -0.6 1.15 ± 4% perf-stat.overall.cache-miss-rate%
2.83 ± 6% +226.5% 9.23 perf-stat.overall.cpi
11798 ± 8% +801.3% 106347 ± 5% perf-stat.overall.cycles-between-cache-misses
0.05 ± 8% -0.0 0.01 ± 13% perf-stat.overall.dTLB-load-miss-rate%
36.64 +41.1 77.72 ± 2% perf-stat.overall.iTLB-load-miss-rate%
1908 ± 4% +69.9% 3242 ± 6% perf-stat.overall.instructions-per-iTLB-miss
0.36 ± 6% -69.5% 0.11 perf-stat.overall.ipc
1.545e+09 +108.0% 3.214e+09 ± 3% perf-stat.ps.branch-instructions
31282752 ± 4% -24.3% 23695577 ± 3% perf-stat.ps.branch-misses
1790563 ± 2% -33.1% 1197953 ± 3% perf-stat.ps.cache-misses
805736 ± 4% -77.5% 180928 ± 6% perf-stat.ps.context-switches
2.108e+10 ± 6% +503.4% 1.272e+11 ± 3% perf-stat.ps.cpu-cycles
1017150 ± 8% -65.9% 347336 ± 11% perf-stat.ps.dTLB-load-misses
1.916e+09 +81.7% 3.483e+09 ± 3% perf-stat.ps.dTLB-loads
53246 ± 20% -27.8% 38432 ± 12% perf-stat.ps.dTLB-store-misses
9.699e+08 ± 3% -32.0% 6.598e+08 ± 4% perf-stat.ps.dTLB-stores
6773860 ± 3% -82.0% 1217329 ± 6% perf-stat.ps.iTLB-loads
7.462e+09 +84.8% 1.379e+10 ± 3% perf-stat.ps.instructions
2792 -5.3% 2645 perf-stat.ps.minor-faults
280640 ± 3% -40.3% 167446 ± 3% perf-stat.ps.node-loads
231142 ± 2% -24.5% 174587 ± 3% perf-stat.ps.node-stores
2792 -5.3% 2645 perf-stat.ps.page-faults
4.745e+11 +85.6% 8.804e+11 perf-stat.total.instructions
0.00 +1977.8% 0.06 ± 12% perf-sched.sch_delay.avg.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.00 +28100.0% 0.56 ± 24% perf-sched.sch_delay.avg.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.00 -100.0% 0.00 perf-sched.sch_delay.avg.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
0.00 ± 20% +17416.7% 0.70 ± 47% perf-sched.sch_delay.avg.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.00 ± 20% +1345.5% 0.03 ± 3% perf-sched.sch_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.00 ± 17% +19446.2% 0.42 ± 26% perf-sched.sch_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.00 +3870.8% 0.16 ± 30% perf-sched.sch_delay.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.00 ± 38% +1175.0% 0.05 ±114% perf-sched.sch_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi
0.01 ± 43% +140.0% 0.01 ± 9% perf-sched.sch_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.00 +4808.3% 0.10 ± 9% perf-sched.sch_delay.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
0.00 ± 14% +423.8% 0.02 ± 22% perf-sched.sch_delay.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
0.00 ± 17% +25573.9% 0.98 ± 50% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.do_select.core_sys_select.kern_select
0.00 ± 15% +425.0% 0.02 ± 67% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.00 -100.0% 0.00 perf-sched.sch_delay.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.pipe_write
0.00 ± 17% +11250.0% 0.30 ± 13% perf-sched.sch_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.00 ± 9% +113.0% 0.01 ± 25% perf-sched.sch_delay.avg.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
0.00 ± 9% +400.0% 0.02 ± 31% perf-sched.sch_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.01 ± 72% +1090.2% 0.10 ± 74% perf-sched.sch_delay.avg.ms.syslog_print.do_syslog.kmsg_read.vfs_read
0.00 ± 20% +13845.5% 0.26 ± 41% perf-sched.sch_delay.avg.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
0.00 ± 7% +203.4% 0.01 ± 22% perf-sched.sch_delay.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
0.00 ± 7% +46565.5% 2.26 ± 57% perf-sched.sch_delay.max.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
0.02 ± 56% +52891.7% 10.60 ± 38% perf-sched.sch_delay.max.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.00 ± 17% +1.1e+05% 2.31 ± 48% perf-sched.sch_delay.max.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.00 ± 22% -100.0% 0.00 perf-sched.sch_delay.max.ms.__cond_resched.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode
0.01 ± 28% +30500.0% 2.14 ± 30% perf-sched.sch_delay.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.10 ±112% +4770.8% 4.83 ± 22% perf-sched.sch_delay.max.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.01 ± 55% +31457.9% 3.00 ± 18% perf-sched.sch_delay.max.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.01 ± 21% +17328.6% 1.42 ± 53% perf-sched.sch_delay.max.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.02 ± 38% +2023.9% 0.49 ±132% perf-sched.sch_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi
0.76 ± 74% +876.1% 7.44 ± 27% perf-sched.sch_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
2.23 ± 5% +472.0% 12.77 ± 23% perf-sched.sch_delay.max.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
0.01 ± 13% +1233.3% 0.07 ± 41% perf-sched.sch_delay.max.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
0.01 ± 19% +20384.6% 1.33 ± 43% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
0.00 ± 15% +40464.3% 1.89 ± 66% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.do_select.core_sys_select.kern_select
0.01 ± 11% +46393.3% 2.32 ± 33% perf-sched.sch_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.01 ± 11% +332.4% 0.03 ± 73% perf-sched.sch_delay.max.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
0.01 ± 16% +4625.0% 0.32 ±137% perf-sched.sch_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
71.65 ± 93% -95.2% 3.47 ±115% perf-sched.sch_delay.max.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.01 ± 54% +1608.3% 0.17 ± 86% perf-sched.sch_delay.max.ms.syslog_print.do_syslog.kmsg_read.vfs_read
0.01 ± 73% +28622.6% 1.48 ± 26% perf-sched.sch_delay.max.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
0.04 ± 29% +857.3% 0.38 ± 77% perf-sched.sch_delay.max.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
0.00 +3916.7% 0.08 ± 11% perf-sched.total_sch_delay.average.ms
0.60 ± 4% +126.9% 1.36 ± 2% perf-sched.total_wait_and_delay.average.ms
1523483 ± 4% -61.7% 583504 ± 2% perf-sched.total_wait_and_delay.count.ms
0.60 ± 4% +114.4% 1.28 ± 3% perf-sched.total_wait_time.average.ms
14.36 ± 27% -67.7% 4.63 ± 39% perf-sched.wait_and_delay.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
0.11 ± 4% +61.2% 0.18 ± 11% perf-sched.wait_and_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
281.24 ± 8% -17.3% 232.69 ± 7% perf-sched.wait_and_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.37 ± 4% +139.5% 0.88 ± 2% perf-sched.wait_and_delay.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
4.03 ± 3% -23.7% 3.07 ± 3% perf-sched.wait_and_delay.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
26.68 ± 4% +153.4% 67.60 ± 3% perf-sched.wait_and_delay.avg.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
91.66 ± 3% -26.2% 67.62 ± 14% perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
119.27 ± 11% +62.9% 194.31 ± 3% perf-sched.wait_and_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
576.50 ± 4% +13.8% 656.21 perf-sched.wait_and_delay.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
20.00 ± 36% +775.0% 175.00 ± 29% perf-sched.wait_and_delay.count.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
2.33 ±112% +2228.6% 54.33 ± 25% perf-sched.wait_and_delay.count.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
75286 -41.4% 44124 ± 2% perf-sched.wait_and_delay.count.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
138.83 ±141% +47169.0% 65625 ± 4% perf-sched.wait_and_delay.count.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
1444349 ± 4% -70.3% 429367 ± 4% perf-sched.wait_and_delay.count.pipe_read.vfs_read.ksys_read.do_syscall_64
586.17 ± 2% -62.8% 218.00 ± 3% perf-sched.wait_and_delay.count.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
52.17 ± 3% +42.5% 74.33 ± 14% perf-sched.wait_and_delay.count.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
1591 ± 11% -40.1% 953.33 ± 2% perf-sched.wait_and_delay.count.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
222.50 ± 4% -12.3% 195.17 ± 2% perf-sched.wait_and_delay.count.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
130.67 ± 51% +101.9% 263.87 ± 25% perf-sched.wait_and_delay.max.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
333.50 ±141% +159.4% 865.14 ± 35% perf-sched.wait_and_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
5.00 -15.1% 4.25 ± 8% perf-sched.wait_and_delay.max.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
0.32 ± 8% -43.9% 0.18 ± 34% perf-sched.wait_time.avg.ms.__cond_resched.__mutex_lock.constprop.0.pipe_read
0.00 ±143% +2137.5% 0.06 ± 94% perf-sched.wait_time.avg.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
0.00 ±223% +33440.0% 0.56 ± 40% perf-sched.wait_time.avg.ms.__cond_resched.dput.__fput.__x64_sys_close.do_syscall_64
14.36 ± 27% -67.7% 4.63 ± 39% perf-sched.wait_time.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
0.32 ± 3% +32.6% 0.43 ± 3% perf-sched.wait_time.avg.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.31 ± 4% -29.3% 0.22 ± 11% perf-sched.wait_time.avg.ms.__cond_resched.pipe_read.vfs_read.ksys_read.do_syscall_64
0.30 ± 6% -80.9% 0.06 ± 99% 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
0.11 ± 4% +39.5% 0.16 ± 13% perf-sched.wait_time.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
281.24 ± 8% -17.4% 232.27 ± 7% perf-sched.wait_time.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.24 +1480.4% 3.76 ±176% perf-sched.wait_time.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
2.38 ±128% -87.4% 0.30 ± 7% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.36 ± 4% +114.1% 0.78 ± 3% perf-sched.wait_time.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
4.02 ± 3% -24.1% 3.05 ± 3% perf-sched.wait_time.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
26.68 ± 4% +153.3% 67.59 ± 3% perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
0.32 ± 8% -72.3% 0.09 ± 52% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.pipe_write
0.33 +303.9% 1.32 ± 11% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
91.66 ± 3% -26.2% 67.60 ± 14% perf-sched.wait_time.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
119.22 ± 11% +63.0% 194.28 ± 3% perf-sched.wait_time.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.00 ±100% +15266.7% 0.15 ± 31% perf-sched.wait_time.avg.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
576.50 ± 4% +13.8% 656.19 perf-sched.wait_time.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
0.00 ±143% +12831.2% 0.34 ± 97% perf-sched.wait_time.max.ms.__cond_resched.down_write_killable.exec_mmap.begin_new_exec.load_elf_binary
0.00 ±223% +92390.0% 1.54 ± 40% perf-sched.wait_time.max.ms.__cond_resched.dput.__fput.__x64_sys_close.do_syscall_64
130.67 ± 51% +101.9% 263.87 ± 25% perf-sched.wait_time.max.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
0.46 ± 24% +1911.2% 9.23 ± 14% perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read
0.37 ± 6% +329.9% 1.59 ± 32% perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.pipe_write.vfs_write.ksys_write
0.39 ± 8% +311.1% 1.60 ± 35% perf-sched.wait_time.max.ms.__cond_resched.pipe_read.vfs_read.ksys_read.do_syscall_64
0.00 ±223% +28933.3% 0.29 ±204% perf-sched.wait_time.max.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.36 ± 5% -80.7% 0.07 ± 96% 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
0.72 ± 2% +23400.6% 169.60 ±219% perf-sched.wait_time.max.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.14 ±149% +1.2e+05% 177.13 ±209% 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
5.00 -15.7% 4.21 ± 8% perf-sched.wait_time.max.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm
0.42 +342.4% 1.84 ± 62% perf-sched.wait_time.max.ms.schedule_preempt_disabled.__mutex_lock.constprop.0.pipe_read
0.77 ± 9% +441.8% 4.17 ± 15% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.01 ± 85% +16142.9% 1.52 ± 44% perf-sched.wait_time.max.ms.wait_for_partner.fifo_open.do_dentry_open.do_open
57.80 ± 2% -57.8 0.00 perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
56.12 -56.1 0.00 perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify
56.11 -56.1 0.00 perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
56.08 -56.1 0.00 perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
52.62 -52.6 0.00 perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry
52.42 -52.4 0.00 perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
51.15 -51.2 0.00 perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary
45.20 -45.2 0.00 perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
9.98 ± 9% -9.7 0.27 ±100% perf-profile.calltrace.cycles-pp.__mutex_lock.pipe_read.vfs_read.ksys_read.do_syscall_64
5.61 ± 15% -5.6 0.00 perf-profile.calltrace.cycles-pp.osq_lock.__mutex_lock.pipe_read.vfs_read.ksys_read
5.52 ± 11% -5.5 0.00 perf-profile.calltrace.cycles-pp.intel_idle_irq.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
1.96 ± 5% -1.7 0.27 ±100% perf-profile.calltrace.cycles-pp.schedule.pipe_read.vfs_read.ksys_read.do_syscall_64
1.92 ± 5% -1.6 0.27 ±100% perf-profile.calltrace.cycles-pp.__schedule.schedule.pipe_read.vfs_read.ksys_read
1.60 ± 7% +0.2 1.82 perf-profile.calltrace.cycles-pp.__wake_up_common.__wake_up_common_lock.pipe_write.vfs_write.ksys_write
1.30 ± 8% +0.2 1.55 perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_write.vfs_write
1.22 ± 8% +0.3 1.51 perf-profile.calltrace.cycles-pp.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_write
0.00 +0.7 0.72 ± 4% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
7.26 ± 9% +12.8 20.03 ± 4% perf-profile.calltrace.cycles-pp.finish_wait.pipe_read.vfs_read.ksys_read.do_syscall_64
6.77 ± 10% +13.2 19.97 ± 4% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.finish_wait.pipe_read.vfs_read.ksys_read
6.33 ± 11% +13.6 19.91 ± 4% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.finish_wait.pipe_read.vfs_read
34.92 ± 5% +17.2 52.16 ± 5% perf-profile.calltrace.cycles-pp.read
34.40 ± 5% +17.6 52.01 ± 5% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.read
34.33 ± 5% +17.7 52.00 ± 5% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
34.09 ± 5% +17.8 51.94 ± 5% perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
34.02 ± 5% +17.9 51.90 ± 5% perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
33.84 ± 5% +18.0 51.80 ± 5% perf-profile.calltrace.cycles-pp.pipe_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
8.40 ± 7% +21.4 29.79 ± 6% perf-profile.calltrace.cycles-pp.prepare_to_wait_event.pipe_read.vfs_read.ksys_read.do_syscall_64
6.03 ± 11% +23.4 29.44 ± 6% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.prepare_to_wait_event.pipe_read.vfs_read.ksys_read
5.01 ± 15% +24.3 29.32 ± 6% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.prepare_to_wait_event.pipe_read.vfs_read
6.67 ± 4% +41.1 47.73 ± 6% perf-profile.calltrace.cycles-pp.write
6.38 ± 4% +41.1 47.49 ± 6% perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
6.47 ± 4% +41.2 47.63 ± 6% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write
6.30 ± 4% +41.2 47.46 ± 6% perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
6.44 ± 4% +41.2 47.61 ± 6% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
6.12 ± 4% +41.2 47.37 ± 6% perf-profile.calltrace.cycles-pp.pipe_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.92 ± 6% +42.8 44.76 ± 6% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__wake_up_common_lock.pipe_write.vfs_write.ksys_write
1.68 ± 8% +42.9 44.63 ± 6% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__wake_up_common_lock.pipe_write.vfs_write
3.55 ± 2% +43.2 46.72 ± 6% perf-profile.calltrace.cycles-pp.__wake_up_common_lock.pipe_write.vfs_write.ksys_write.do_syscall_64
57.80 ± 2% -57.8 0.00 perf-profile.children.cycles-pp.secondary_startup_64_no_verify
57.80 ± 2% -57.8 0.00 perf-profile.children.cycles-pp.cpu_startup_entry
57.77 ± 2% -57.8 0.00 perf-profile.children.cycles-pp.do_idle
56.12 -56.1 0.00 perf-profile.children.cycles-pp.start_secondary
53.99 -54.0 0.00 perf-profile.children.cycles-pp.cpuidle_idle_call
52.67 -52.7 0.00 perf-profile.children.cycles-pp.cpuidle_enter
52.66 -52.7 0.00 perf-profile.children.cycles-pp.cpuidle_enter_state
45.20 -45.2 0.00 perf-profile.children.cycles-pp.intel_idle
11.53 ± 7% -11.0 0.54 ± 23% perf-profile.children.cycles-pp.__mutex_lock
6.59 ± 11% -6.6 0.00 perf-profile.children.cycles-pp.intel_idle_irq
6.58 ± 12% -6.4 0.20 ± 30% perf-profile.children.cycles-pp.osq_lock
3.36 ± 7% -2.8 0.59 ± 6% perf-profile.children.cycles-pp.__schedule
2.53 ± 2% -2.4 0.09 ± 44% perf-profile.children.cycles-pp.mutex_spin_on_owner
2.05 ± 5% -1.5 0.56 ± 7% perf-profile.children.cycles-pp.schedule
1.72 ± 4% -1.5 0.26 ± 4% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
1.52 ± 2% -1.0 0.50 ± 5% perf-profile.children.cycles-pp.mutex_lock
1.21 ± 4% -0.8 0.36 perf-profile.children.cycles-pp.mutex_unlock
0.86 ± 7% -0.8 0.11 ± 9% perf-profile.children.cycles-pp.dequeue_entity
0.93 ± 7% -0.7 0.21 ± 7% perf-profile.children.cycles-pp.dequeue_task_fair
0.89 ± 9% -0.6 0.31 ± 9% perf-profile.children.cycles-pp.ttwu_do_activate
0.65 ± 4% -0.6 0.07 ± 7% perf-profile.children.cycles-pp._raw_spin_lock
0.83 ± 9% -0.6 0.26 ± 10% perf-profile.children.cycles-pp.activate_task
0.79 ± 6% -0.6 0.24 ± 3% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
0.69 ± 10% -0.6 0.14 ± 12% perf-profile.children.cycles-pp.enqueue_entity
0.77 ± 9% -0.5 0.25 ± 9% perf-profile.children.cycles-pp.enqueue_task_fair
0.55 ± 3% -0.5 0.05 ± 8% perf-profile.children.cycles-pp.__list_add_valid_or_report
0.54 ± 5% -0.5 0.08 ± 8% perf-profile.children.cycles-pp.__list_del_entry_valid_or_report
0.62 ± 7% -0.4 0.22 ± 5% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
0.61 ± 6% -0.4 0.22 ± 4% perf-profile.children.cycles-pp.hrtimer_interrupt
0.54 ± 8% -0.3 0.19 ± 8% perf-profile.children.cycles-pp.update_load_avg
0.40 ± 9% -0.3 0.06 ± 14% perf-profile.children.cycles-pp.switch_mm_irqs_off
0.46 ± 11% -0.3 0.13 ± 8% perf-profile.children.cycles-pp.pick_next_task_fair
0.50 ± 7% -0.3 0.19 ± 5% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.35 ± 10% -0.3 0.05 ± 8% perf-profile.children.cycles-pp.prepare_task_switch
0.41 ± 8% -0.3 0.12 ± 7% perf-profile.children.cycles-pp.select_task_rq
0.38 ± 8% -0.3 0.12 ± 5% perf-profile.children.cycles-pp.select_task_rq_fair
0.36 ± 9% -0.2 0.15 ± 7% perf-profile.children.cycles-pp.tick_sched_timer
0.32 ± 8% -0.2 0.15 ± 4% perf-profile.children.cycles-pp.tick_sched_handle
0.32 ± 7% -0.2 0.15 ± 4% perf-profile.children.cycles-pp.update_process_times
0.20 ± 18% -0.2 0.03 ± 70% perf-profile.children.cycles-pp.set_next_entity
0.27 ± 8% -0.1 0.13 ± 5% perf-profile.children.cycles-pp.scheduler_tick
0.20 ± 9% -0.1 0.06 ± 9% perf-profile.children.cycles-pp.perf_event_task_tick
0.17 ± 11% -0.1 0.02 ± 99% perf-profile.children.cycles-pp.__update_load_avg_se
0.20 ± 8% -0.1 0.06 ± 11% perf-profile.children.cycles-pp.perf_adjust_freq_unthr_context
0.26 ± 8% -0.1 0.14 ± 5% perf-profile.children.cycles-pp.update_curr
0.18 ± 8% -0.1 0.06 ± 11% perf-profile.children.cycles-pp.__update_load_avg_cfs_rq
0.25 ± 8% -0.1 0.15 ± 7% perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.21 ± 9% -0.1 0.12 ± 5% perf-profile.children.cycles-pp.exit_to_user_mode_prepare
0.15 ± 12% -0.1 0.06 ± 11% perf-profile.children.cycles-pp.__entry_text_start
0.10 ± 15% -0.1 0.02 ± 99% perf-profile.children.cycles-pp.__fdget_pos
0.14 ± 15% -0.1 0.07 ± 10% perf-profile.children.cycles-pp.security_file_permission
0.14 ± 11% -0.1 0.07 ± 6% perf-profile.children.cycles-pp.reweight_entity
0.12 ± 15% -0.1 0.06 ± 11% perf-profile.children.cycles-pp.apparmor_file_permission
0.19 ± 11% -0.1 0.14 ± 7% perf-profile.children.cycles-pp.copy_page_to_iter
0.09 ± 9% -0.1 0.04 ± 71% perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.18 ± 12% -0.1 0.13 ± 8% perf-profile.children.cycles-pp._copy_to_iter
0.16 ± 14% -0.0 0.12 ± 6% perf-profile.children.cycles-pp.copyout
0.15 ± 11% -0.0 0.11 ± 6% perf-profile.children.cycles-pp.rep_movs_alternative
0.00 +0.1 0.05 ± 7% perf-profile.children.cycles-pp.task_tick_fair
0.00 +0.1 0.07 ± 9% perf-profile.children.cycles-pp.wake_affine
1.60 ± 7% +0.2 1.82 perf-profile.children.cycles-pp.__wake_up_common
1.31 ± 8% +0.2 1.55 perf-profile.children.cycles-pp.autoremove_wake_function
1.27 ± 7% +0.3 1.53 perf-profile.children.cycles-pp.try_to_wake_up
7.26 ± 9% +12.8 20.04 ± 4% perf-profile.children.cycles-pp.finish_wait
34.96 ± 5% +17.2 52.19 ± 5% perf-profile.children.cycles-pp.read
34.10 ± 5% +17.8 51.94 ± 5% perf-profile.children.cycles-pp.ksys_read
34.02 ± 5% +17.9 51.90 ± 5% perf-profile.children.cycles-pp.vfs_read
33.86 ± 5% +17.9 51.81 ± 5% perf-profile.children.cycles-pp.pipe_read
8.40 ± 7% +21.4 29.81 ± 6% perf-profile.children.cycles-pp.prepare_to_wait_event
6.72 ± 4% +41.0 47.76 ± 6% perf-profile.children.cycles-pp.write
6.39 ± 4% +41.1 47.50 ± 6% perf-profile.children.cycles-pp.ksys_write
6.31 ± 4% +41.2 47.47 ± 6% perf-profile.children.cycles-pp.vfs_write
6.12 ± 4% +41.2 47.38 ± 6% perf-profile.children.cycles-pp.pipe_write
3.56 ± 2% +43.2 46.74 ± 6% perf-profile.children.cycles-pp.__wake_up_common_lock
41.06 ± 3% +58.6 99.69 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
40.96 ± 3% +58.7 99.66 perf-profile.children.cycles-pp.do_syscall_64
15.52 ± 11% +78.4 93.87 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
15.04 ± 10% +79.9 94.90 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
45.20 -45.2 0.00 perf-profile.self.cycles-pp.intel_idle
6.56 ± 13% -6.4 0.20 ± 30% perf-profile.self.cycles-pp.osq_lock
6.29 ± 11% -6.3 0.00 perf-profile.self.cycles-pp.intel_idle_irq
2.52 ± 2% -2.4 0.09 ± 44% perf-profile.self.cycles-pp.mutex_spin_on_owner
2.03 ± 2% -1.8 0.22 ± 13% perf-profile.self.cycles-pp.__mutex_lock
1.79 ± 4% -1.6 0.24 ± 8% perf-profile.self.cycles-pp.prepare_to_wait_event
1.49 ± 2% -1.0 0.44 ± 5% perf-profile.self.cycles-pp.mutex_lock
2.01 ± 6% -1.0 1.04 ± 3% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
1.21 ± 3% -0.8 0.36 ± 2% perf-profile.self.cycles-pp.mutex_unlock
0.96 ± 37% -0.8 0.19 ± 29% perf-profile.self.cycles-pp.pipe_read
0.64 ± 5% -0.6 0.06 ± 13% perf-profile.self.cycles-pp._raw_spin_lock
0.55 ± 3% -0.5 0.05 ± 8% perf-profile.self.cycles-pp.__list_add_valid_or_report
0.53 ± 5% -0.5 0.08 ± 9% perf-profile.self.cycles-pp.__list_del_entry_valid_or_report
0.40 ± 8% -0.3 0.06 ± 14% perf-profile.self.cycles-pp.switch_mm_irqs_off
0.31 ± 8% -0.3 0.06 ± 9% perf-profile.self.cycles-pp.__schedule
0.22 ± 46% -0.1 0.07 ± 32% perf-profile.self.cycles-pp.pipe_write
0.18 ± 8% -0.1 0.06 ± 6% perf-profile.self.cycles-pp.__update_load_avg_cfs_rq
0.18 ± 11% -0.1 0.08 ± 8% perf-profile.self.cycles-pp.update_load_avg
0.09 ± 9% -0.1 0.03 ±100% perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.11 ± 12% -0.1 0.05 ± 8% perf-profile.self.cycles-pp.apparmor_file_permission
0.08 ± 17% -0.1 0.02 ± 99% perf-profile.self.cycles-pp.vfs_read
0.07 ± 9% -0.0 0.02 ± 99% perf-profile.self.cycles-pp.vfs_write
0.13 ± 7% -0.0 0.09 ± 10% perf-profile.self.cycles-pp.update_curr
0.05 ± 8% +0.2 0.28 ± 4% perf-profile.self.cycles-pp.try_to_wake_up
15.51 ± 11% +78.4 93.87 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath

Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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