From: kernel test robot <oliver.sang@intel.com>
To: Li Chen <chenl311@chinatelecom.cn>
Cc: <oe-lkp@lists.linux.dev>, <lkp@intel.com>,
Jens Axboe <axboe@kernel.dk>, Chaitanya Kulkarni <kch@nvidia.com>,
Bart Van Assche <bvanassche@acm.org>,
<linux-block@vger.kernel.org>, <oliver.sang@intel.com>
Subject: [linux-next:master] [block] 3179a5f7f8: stress-ng.loop.ops_per_sec 225.6% improvement
Date: Fri, 21 Nov 2025 14:56:55 +0800 [thread overview]
Message-ID: <202511211458.ef9f7202-lkp@intel.com> (raw)
Hello,
kernel test robot noticed a 225.6% improvement of stress-ng.loop.ops_per_sec on:
commit: 3179a5f7f86bcc3acd5d6fb2a29f891ef5615852 ("block: rate-limit capacity change info log")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
testcase: stress-ng
config: x86_64-rhel-9.4
compiler: gcc-14
test machine: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory
parameters:
nr_threads: 100%
testtime: 60s
test: loop
cpufreq_governor: performance
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20251121/202511211458.ef9f7202-lkp@intel.com
=========================================================================================
compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
gcc-14/performance/x86_64-rhel-9.4/100%/debian-13-x86_64-20250902.cgz/lkp-icl-2sp7/loop/stress-ng/60s
commit:
ade260ca85 ("Documentation: admin-guide: blockdev: update zloop parameters")
3179a5f7f8 ("block: rate-limit capacity change info log")
ade260ca858627b2 3179a5f7f86bcc3acd5d6fb2a29
---------------- ---------------------------
%stddev %change %stddev
\ | \
6815 -11.6% 6023 uptime.idle
3.679e+09 -21.3% 2.894e+09 cpuidle..time
5053153 +85.8% 9390705 cpuidle..usage
1843799 ± 4% +347.6% 8253228 ± 2% numa-numastat.node0.local_node
1880282 ± 3% +340.2% 8276931 ± 2% numa-numastat.node0.numa_hit
1907306 ± 3% +307.6% 7774259 ± 2% numa-numastat.node1.local_node
1940797 ± 2% +303.4% 7829989 ± 2% numa-numastat.node1.numa_hit
3409 ± 60% +212.8% 10664 ± 28% perf-c2c.DRAM.local
2854 ± 79% +170.8% 7729 ± 14% perf-c2c.DRAM.remote
2489 ± 53% +185.3% 7102 ± 15% perf-c2c.HITM.local
1054 ± 61% +219.9% 3371 ± 17% perf-c2c.HITM.remote
3543 ± 55% +195.6% 10474 ± 15% perf-c2c.HITM.total
91.82 -17.7 74.07 mpstat.cpu.all.idle%
0.31 ± 7% +0.1 0.45 ± 3% mpstat.cpu.all.irq%
0.19 ± 2% +0.5 0.65 mpstat.cpu.all.soft%
3.63 ± 4% +12.8 16.48 mpstat.cpu.all.sys%
3.30 ± 2% +3.8 7.06 mpstat.cpu.all.usr%
20.32 ± 10% +57.7% 32.06 ± 3% mpstat.max_utilization_pct
2092 ± 28% +203.2% 6346 ± 18% numa-meminfo.node0.Dirty
29255 ± 8% +15.5% 33793 ± 3% numa-meminfo.node0.Inactive
29255 ± 8% +15.5% 33793 ± 3% numa-meminfo.node0.Inactive(file)
49790 ± 48% +545.3% 321289 ± 12% numa-meminfo.node0.Shmem
2021 ± 29% +197.7% 6019 ± 20% numa-meminfo.node1.Dirty
60987 ± 61% +164.0% 161033 ± 27% numa-meminfo.node1.Mapped
150941 ± 30% +173.8% 413310 ± 12% numa-meminfo.node1.Shmem
5593 ± 2% +219.7% 17883 stress-ng.loop.ops
91.38 +225.6% 297.51 stress-ng.loop.ops_per_sec
14001676 +372.7% 66186417 stress-ng.time.file_system_inputs
14605558 +369.4% 68565222 stress-ng.time.file_system_outputs
15155 ± 2% +370.7% 71341 stress-ng.time.involuntary_context_switches
128020 +334.9% 556806 stress-ng.time.minor_page_faults
162.33 ± 4% +212.6% 507.50 stress-ng.time.percent_of_cpu_this_job_got
99.38 ± 4% +204.9% 303.06 stress-ng.time.system_time
856635 ± 4% +293.1% 3367479 stress-ng.time.voluntary_context_switches
0.07 ± 28% -78.8% 0.01 ± 11% perf-sched.sch_delay.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown]
1477 ± 20% -80.6% 286.82 ± 88% perf-sched.sch_delay.max.ms.[unknown].[unknown].[unknown].[unknown].[unknown]
0.07 ± 28% -78.8% 0.01 ± 11% perf-sched.total_sch_delay.average.ms
1477 ± 20% -80.6% 286.82 ± 88% perf-sched.total_sch_delay.max.ms
7.95 ± 14% -73.5% 2.11 ± 2% perf-sched.total_wait_and_delay.average.ms
249384 ± 17% +304.3% 1008252 ± 2% perf-sched.total_wait_and_delay.count.ms
7.88 ± 14% -73.4% 2.09 ± 2% perf-sched.total_wait_time.average.ms
7.95 ± 14% -73.5% 2.11 ± 2% perf-sched.wait_and_delay.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown]
249384 ± 17% +304.3% 1008252 ± 2% perf-sched.wait_and_delay.count.[unknown].[unknown].[unknown].[unknown].[unknown]
7.88 ± 14% -73.4% 2.09 ± 2% perf-sched.wait_time.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown]
889964 ± 3% +61.7% 1438659 meminfo.Active
888600 ± 3% +61.8% 1437484 meminfo.Active(anon)
4009560 +13.5% 4551679 meminfo.Cached
1750503 ± 2% +32.1% 2313144 meminfo.Committed_AS
3905 ± 28% +221.6% 12559 ± 24% meminfo.Dirty
57102 ± 5% +12.8% 64430 ± 3% meminfo.Inactive
57102 ± 5% +12.8% 64430 ± 3% meminfo.Inactive(file)
122475 ± 2% +13.4% 138912 meminfo.KReclaimable
118852 ± 6% +142.6% 288329 ± 3% meminfo.Mapped
6466538 +12.1% 7246865 meminfo.Memused
122475 ± 2% +13.4% 138912 meminfo.SReclaimable
200885 ± 15% +266.0% 735252 meminfo.Shmem
315909 +10.4% 348749 meminfo.Slab
293.33 ± 2% +189.5% 849.33 turbostat.Avg_MHz
9.65 ± 2% +17.9 27.50 turbostat.Busy%
3045 +1.7% 3096 turbostat.Bzy_MHz
0.48 ± 3% +1.5 1.98 ± 2% turbostat.C1%
6.84 +21.3 28.10 turbostat.C1E%
83.38 -40.4 42.94 turbostat.C6%
80.98 -35.2% 52.49 turbostat.CPU%c1
1.85 ± 6% +45.1% 2.69 ± 14% turbostat.CPU%c6
0.61 +10.9% 0.68 turbostat.IPC
5413781 ± 4% +55.3% 8409958 turbostat.IRQ
456397 ± 20% +125.4% 1028647 ± 4% turbostat.NMI
61.83 ± 3% +8.9% 67.33 ± 2% turbostat.PkgTmp
153.64 +22.8% 188.66 turbostat.PkgWatt
14.32 +12.8% 16.15 turbostat.RAMWatt
931539 ± 3% +382.8% 4497147 ± 2% numa-vmstat.node0.nr_dirtied
552.18 ± 26% +167.8% 1478 ± 9% numa-vmstat.node0.nr_dirty
7350 ± 7% +15.0% 8453 ± 5% numa-vmstat.node0.nr_inactive_file
12438 ± 48% +546.8% 80450 ± 12% numa-vmstat.node0.nr_shmem
929996 ± 3% +382.8% 4489616 ± 2% numa-vmstat.node0.nr_written
7352 ± 7% +15.0% 8451 ± 5% numa-vmstat.node0.nr_zone_inactive_file
235.69 ± 27% +173.8% 645.41 ± 8% numa-vmstat.node0.nr_zone_write_pending
1880195 ± 3% +340.2% 8277267 ± 2% numa-vmstat.node0.numa_hit
1843713 ± 4% +347.7% 8253564 ± 2% numa-vmstat.node0.numa_local
894153 ± 3% +355.6% 4073475 ± 2% numa-vmstat.node1.nr_dirtied
534.65 ± 25% +164.1% 1412 ± 10% numa-vmstat.node1.nr_dirty
15403 ± 61% +163.6% 40598 ± 27% numa-vmstat.node1.nr_mapped
37638 ± 30% +174.9% 103456 ± 12% numa-vmstat.node1.nr_shmem
892583 ± 3% +355.6% 4066446 ± 2% numa-vmstat.node1.nr_written
197.36 ± 25% +222.6% 636.75 ± 17% numa-vmstat.node1.nr_zone_write_pending
1940005 ± 2% +303.6% 7829857 ± 2% numa-vmstat.node1.numa_hit
1906514 ± 3% +307.8% 7774127 ± 2% numa-vmstat.node1.numa_local
222198 ± 3% +61.7% 359280 proc-vmstat.nr_active_anon
172929 +2.1% 176502 proc-vmstat.nr_anon_pages
1825693 +369.4% 8570496 proc-vmstat.nr_dirtied
1063 ± 27% +184.4% 3024 ± 17% proc-vmstat.nr_dirty
1016709 +13.4% 1152795 proc-vmstat.nr_file_pages
14436 ± 6% +14.7% 16552 ± 4% proc-vmstat.nr_inactive_file
30007 ± 6% +141.4% 72439 ± 3% proc-vmstat.nr_mapped
50207 ± 16% +265.9% 183714 proc-vmstat.nr_shmem
30625 ± 2% +13.2% 34677 proc-vmstat.nr_slab_reclaimable
48354 +8.5% 52458 proc-vmstat.nr_slab_unreclaimable
1822579 +369.4% 8555845 proc-vmstat.nr_written
222198 ± 3% +61.7% 359280 proc-vmstat.nr_zone_active_anon
14436 ± 6% +14.7% 16552 ± 4% proc-vmstat.nr_zone_inactive_file
407.28 ± 29% +212.5% 1272 ± 17% proc-vmstat.nr_zone_write_pending
3823893 ± 2% +321.3% 16109059 proc-vmstat.numa_hit
3753920 ± 2% +327.0% 16029626 proc-vmstat.numa_local
69973 +13.4% 79321 proc-vmstat.numa_other
5675784 +334.1% 24637404 proc-vmstat.pgalloc_normal
1793025 ± 2% +291.4% 7018035 ± 2% proc-vmstat.pgfault
5524391 +339.2% 24262818 proc-vmstat.pgfree
269.33 ± 8% +403.0% 1354 ± 3% proc-vmstat.pgmajfault
7717613 +371.4% 36384158 proc-vmstat.pgpgin
14575400 +369.6% 68446414 proc-vmstat.pgpgout
227612 ± 4% +371.1% 1072325 ± 5% proc-vmstat.pgreuse
198024 +306.6% 805258 proc-vmstat.unevictable_pgs_culled
17285 ± 43% +367.4% 80792 sched_debug.cfs_rq:/.avg_vruntime.avg
85714 ± 33% +124.8% 192709 ± 11% sched_debug.cfs_rq:/.avg_vruntime.max
7611 ± 69% +745.7% 64365 ± 2% sched_debug.cfs_rq:/.avg_vruntime.min
14880 ± 26% +49.1% 22182 ± 9% sched_debug.cfs_rq:/.avg_vruntime.stddev
0.17 ± 12% +106.0% 0.36 ± 28% sched_debug.cfs_rq:/.h_nr_queued.avg
0.39 ± 4% +24.8% 0.48 ± 6% sched_debug.cfs_rq:/.h_nr_queued.stddev
0.17 ± 12% +104.5% 0.35 ± 28% sched_debug.cfs_rq:/.h_nr_runnable.avg
0.38 ± 3% +23.8% 0.48 ± 5% sched_debug.cfs_rq:/.h_nr_runnable.stddev
7326 ±189% -88.9% 812.50 ± 19% sched_debug.cfs_rq:/.load_avg.max
1328 ±176% -86.2% 183.41 ± 17% sched_debug.cfs_rq:/.load_avg.stddev
17285 ± 43% +367.4% 80792 sched_debug.cfs_rq:/.min_vruntime.avg
85714 ± 33% +124.8% 192709 ± 11% sched_debug.cfs_rq:/.min_vruntime.max
7611 ± 69% +745.7% 64365 ± 2% sched_debug.cfs_rq:/.min_vruntime.min
14880 ± 26% +49.1% 22182 ± 9% sched_debug.cfs_rq:/.min_vruntime.stddev
0.17 ± 12% +108.2% 0.36 ± 28% sched_debug.cfs_rq:/.nr_queued.avg
0.39 ± 4% +26.3% 0.49 ± 6% sched_debug.cfs_rq:/.nr_queued.stddev
30.11 ± 25% +115.4% 64.84 ± 30% sched_debug.cfs_rq:/.util_est.avg
1221148 ± 25% -39.9% 733630 ± 12% sched_debug.cpu.avg_idle.avg
811.42 ± 11% +280.4% 3086 ± 33% sched_debug.cpu.curr->pid.avg
7770 ± 18% +95.7% 15210 sched_debug.cpu.curr->pid.max
2073 ± 5% +147.2% 5124 ± 18% sched_debug.cpu.curr->pid.stddev
266390 ± 17% +34.3% 357661 ± 3% sched_debug.cpu.max_idle_balance_cost.stddev
0.17 ± 10% +105.4% 0.35 ± 29% sched_debug.cpu.nr_running.avg
0.41 ± 3% +16.9% 0.47 ± 5% sched_debug.cpu.nr_running.stddev
22385 ± 62% +494.1% 132999 sched_debug.cpu.nr_switches.avg
39219 ± 37% +367.7% 183438 ± 3% sched_debug.cpu.nr_switches.max
12118 ± 71% +530.8% 76438 ± 11% sched_debug.cpu.nr_switches.min
4550 ± 22% +232.5% 15128 ± 5% sched_debug.cpu.nr_switches.stddev
51.00 ± 48% +431.5% 271.08 ± 11% sched_debug.cpu.nr_uninterruptible.max
-53.25 +188.1% -153.42 sched_debug.cpu.nr_uninterruptible.min
14.06 ± 40% +259.7% 50.56 ± 8% sched_debug.cpu.nr_uninterruptible.stddev
1.84 ± 2% +14.1% 2.10 perf-stat.i.MPKI
3.078e+09 ± 4% +175.8% 8.488e+09 perf-stat.i.branch-instructions
2.83 ± 6% -1.4 1.41 ± 2% perf-stat.i.branch-miss-rate%
82605640 ± 4% +46.8% 1.212e+08 perf-stat.i.branch-misses
37.32 -1.4 35.91 perf-stat.i.cache-miss-rate%
26611318 ± 4% +194.8% 78450122 perf-stat.i.cache-misses
69487762 ± 3% +215.3% 2.191e+08 perf-stat.i.cache-references
78925 ± 4% +255.2% 280351 perf-stat.i.context-switches
1.72 -12.8% 1.50 perf-stat.i.cpi
7.328e+10 ± 2% -12.6% 6.404e+10 perf-stat.i.cpu-clock
2.361e+10 ± 4% +137.4% 5.603e+10 perf-stat.i.cpu-cycles
2398 ± 6% +348.0% 10743 ± 2% perf-stat.i.cpu-migrations
1026 ± 4% -29.5% 723.26 perf-stat.i.cycles-between-cache-misses
1.413e+10 ± 4% +165.2% 3.747e+10 perf-stat.i.instructions
0.59 +13.1% 0.67 perf-stat.i.ipc
1.31 ± 15% +264.2% 4.77 ± 4% perf-stat.i.major-faults
1.03 ± 14% +636.1% 7.60 ± 2% perf-stat.i.metric.K/sec
31840 ± 4% +229.5% 104918 ± 2% perf-stat.i.minor-faults
31911 ± 4% +229.7% 105198 ± 2% perf-stat.i.page-faults
7.328e+10 ± 2% -12.6% 6.404e+10 perf-stat.i.task-clock
1.20 ± 70% +73.6% 2.09 perf-stat.overall.MPKI
0.40 ± 70% +68.6% 0.67 perf-stat.overall.ipc
1.655e+09 ± 70% +402.6% 8.316e+09 perf-stat.ps.branch-instructions
46440825 ± 70% +155.9% 1.188e+08 perf-stat.ps.branch-misses
13717157 ± 70% +459.9% 76804429 perf-stat.ps.cache-misses
36811876 ± 70% +482.9% 2.146e+08 perf-stat.ps.cache-references
41963 ± 70% +554.2% 274527 perf-stat.ps.context-switches
1.276e+10 ± 70% +330.4% 5.493e+10 perf-stat.ps.cpu-cycles
1258 ± 71% +736.4% 10528 ± 2% perf-stat.ps.cpu-migrations
7.588e+09 ± 70% +383.9% 3.672e+10 perf-stat.ps.instructions
0.64 ± 71% +633.4% 4.67 ± 4% perf-stat.ps.major-faults
16670 ± 70% +516.2% 102729 ± 2% perf-stat.ps.minor-faults
16708 ± 70% +516.5% 103002 ± 2% perf-stat.ps.page-faults
4.726e+11 ± 70% +375.9% 2.249e+12 perf-stat.total.instructions
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2025-11-21 6:57 UTC|newest]
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