| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <202511071447.b5bd3ddf-lkp@intel.com>
Date: Fri, 7 Nov 2025 15:21:54 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Dave Chinner <dchinner@...hat.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <linux-kernel@...r.kernel.org>,
Carlos Maiolino <cem@...nel.org>, Jan Kara <jack@...e.cz>, Christoph Hellwig
<hch@....de>, <linux-xfs@...r.kernel.org>, <oliver.sang@...el.com>
Subject: [linus:master] [xfs] c91d38b57f: stress-ng.chmod.ops_per_sec
3807.5% improvement
Hello,
kernel test robot noticed a 3807.5% improvement of stress-ng.chmod.ops_per_sec on:
commit: c91d38b57f2c4784d885c874b2a1234a01361afd ("xfs: rework datasync tracking and execution")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.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%
disk: 1HDD
testtime: 60s
fs: xfs
test: chmod
cpufreq_governor: performance
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20251107/202511071447.b5bd3ddf-lkp@intel.com
=========================================================================================
compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
gcc-14/performance/1HDD/xfs/x86_64-rhel-9.4/100%/debian-13-x86_64-20250902.cgz/lkp-icl-2sp8/chmod/stress-ng/60s
commit:
bc7d684fea ("xfs: rearrange code in xfs_inode_item_precommit")
c91d38b57f ("xfs: rework datasync tracking and execution")
bc7d684fea18cc48 c91d38b57f2c4784d885c874b2a
---------------- ---------------------------
%stddev %change %stddev
\ | \
6943 ± 2% -31.3% 4767 uptime.idle
3.968e+09 -19.6% 3.191e+09 cpuidle..time
267038 ± 6% +228.0% 875840 ± 6% cpuidle..usage
202471 ± 87% +110.4% 425943 ± 53% numa-meminfo.node1.Active
202464 ± 87% +110.4% 425935 ± 53% numa-meminfo.node1.Active(anon)
11019 ± 11% +614.5% 78736 ± 19% numa-meminfo.node1.Shmem
50689 ± 87% +110.2% 106536 ± 53% numa-vmstat.node1.nr_active_anon
2736 ± 11% +620.7% 19718 ± 19% numa-vmstat.node1.nr_shmem
50689 ± 87% +110.2% 106536 ± 53% numa-vmstat.node1.nr_zone_active_anon
98.29 -47.8% 51.30 ± 2% iostat.cpu.idle
0.01 ± 34% +4.4e+05% 29.80 iostat.cpu.iowait
0.86 ± 8% +1983.4% 17.82 ± 6% iostat.cpu.system
0.84 ± 13% +27.9% 1.08 ± 2% iostat.cpu.user
678151 +10.8% 751607 meminfo.Active
678134 +10.8% 751591 meminfo.Active(anon)
74229 ± 4% -10.1% 66725 ± 3% meminfo.AnonHugePages
16590 ± 5% +432.3% 88307 ± 14% meminfo.Shmem
15.83 ± 23% +1103.2% 190.50 ± 8% perf-c2c.DRAM.local
358.00 ± 30% +3312.1% 12215 ± 7% perf-c2c.DRAM.remote
321.17 ± 32% +2900.4% 9636 ± 7% perf-c2c.HITM.local
241.00 ± 30% +3726.9% 9222 ± 7% perf-c2c.HITM.remote
562.17 ± 31% +3254.7% 18859 ± 7% perf-c2c.HITM.total
1225 ± 14% +3762.4% 47314 ± 4% stress-ng.chmod.ops
20.17 ± 15% +3807.5% 788.15 ± 4% stress-ng.chmod.ops_per_sec
146.50 ± 11% +752.3% 1248 ± 4% stress-ng.time.involuntary_context_switches
11984 +20.8% 14481 stress-ng.time.minor_page_faults
34.17 ± 16% +3293.2% 1159 ± 6% stress-ng.time.percent_of_cpu_this_job_got
21.27 ± 15% +3173.1% 696.14 ± 6% stress-ng.time.system_time
62731 ± 16% +1072.8% 735741 ± 9% stress-ng.time.voluntary_context_switches
98.30 -48.5 49.84 ± 2% mpstat.cpu.all.idle%
0.00 ±105% +30.7 30.72 mpstat.cpu.all.iowait%
0.02 ± 8% +0.1 0.09 ± 6% mpstat.cpu.all.irq%
0.01 ± 18% +0.0 0.02 ± 5% mpstat.cpu.all.soft%
0.83 ± 9% +17.4 18.24 ± 6% mpstat.cpu.all.sys%
0.85 ± 14% +0.2 1.09 ± 2% mpstat.cpu.all.usr%
1.00 +4033.3% 41.33 ± 33% mpstat.max_utilization.seconds
6.13 ± 6% +333.0% 26.54 ± 4% mpstat.max_utilization_pct
65.17 ± 11% +969.1% 696.67 ± 6% turbostat.Avg_MHz
1.81 ± 11% +17.6 19.39 ± 6% turbostat.Busy%
98.22 -17.5 80.69 turbostat.C1%
96.82 -25.6% 72.07 turbostat.CPU%c1
0.72 ± 4% -55.4% 0.32 ± 2% turbostat.IPC
372011 ± 8% +706.5% 3000169 ± 5% turbostat.IRQ
23024 ± 30% +2629.0% 628341 ± 6% turbostat.NMI
243.27 +9.4% 266.04 turbostat.PkgWatt
15.14 +2.9% 15.57 turbostat.RAMWatt
225.26 ± 17% -92.7% 16.48 ± 9% perf-sched.total_wait_and_delay.average.ms
4552 ± 19% +1482.3% 72026 ± 10% perf-sched.total_wait_and_delay.count.ms
4996 -22.0% 3898 ± 10% perf-sched.total_wait_and_delay.max.ms
225.25 ± 17% -92.7% 16.46 ± 9% perf-sched.total_wait_time.average.ms
4996 -22.0% 3898 ± 10% perf-sched.total_wait_time.max.ms
225.26 ± 17% -92.7% 16.48 ± 9% perf-sched.wait_and_delay.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown]
4552 ± 19% +1482.3% 72026 ± 10% perf-sched.wait_and_delay.count.[unknown].[unknown].[unknown].[unknown].[unknown]
4996 -22.0% 3898 ± 10% perf-sched.wait_and_delay.max.ms.[unknown].[unknown].[unknown].[unknown].[unknown]
225.25 ± 17% -92.7% 16.46 ± 9% perf-sched.wait_time.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown]
4996 -22.0% 3898 ± 10% perf-sched.wait_time.max.ms.[unknown].[unknown].[unknown].[unknown].[unknown]
169578 +10.8% 187927 proc-vmstat.nr_active_anon
935816 +1.9% 953408 proc-vmstat.nr_file_pages
20878 +4.0% 21711 proc-vmstat.nr_mapped
4142 ± 5% +433.8% 22109 ± 14% proc-vmstat.nr_shmem
41118 +1.0% 41531 proc-vmstat.nr_slab_unreclaimable
169578 +10.8% 187927 proc-vmstat.nr_zone_active_anon
615.17 ±218% +464.4% 3472 ± 14% proc-vmstat.numa_hint_faults_local
345828 ± 4% +10.1% 380782 ± 2% proc-vmstat.numa_hit
279652 ± 5% +12.5% 314600 ± 3% proc-vmstat.numa_local
60782 ± 60% +78.2% 108287 ± 14% proc-vmstat.numa_pte_updates
382421 ± 4% +9.6% 419096 ± 2% proc-vmstat.pgalloc_normal
5338 ± 20% +193.0% 15639 ± 6% proc-vmstat.pgpgout
7731 ± 7% +1078.0% 91080 ± 10% sched_debug.cfs_rq:/.avg_vruntime.avg
61046 ± 13% +183.6% 173149 ± 14% sched_debug.cfs_rq:/.avg_vruntime.max
747.60 ± 23% +3826.2% 29352 ± 13% sched_debug.cfs_rq:/.avg_vruntime.min
10401 ± 7% +72.6% 17954 ± 9% sched_debug.cfs_rq:/.avg_vruntime.stddev
564880 ± 44% -71.2% 162663 ±113% sched_debug.cfs_rq:/.load.max
79058 ± 37% -64.4% 28177 ± 90% sched_debug.cfs_rq:/.load.stddev
7731 ± 7% +1078.0% 91080 ± 10% sched_debug.cfs_rq:/.min_vruntime.avg
61046 ± 13% +183.6% 173149 ± 14% sched_debug.cfs_rq:/.min_vruntime.max
747.60 ± 23% +3826.2% 29352 ± 13% sched_debug.cfs_rq:/.min_vruntime.min
10401 ± 7% +72.6% 17954 ± 9% sched_debug.cfs_rq:/.min_vruntime.stddev
254.61 ± 6% +23.3% 313.88 ± 6% sched_debug.cfs_rq:/.runnable_avg.avg
254.13 ± 6% +23.4% 313.61 ± 6% sched_debug.cfs_rq:/.util_avg.avg
1388025 ± 3% -8.9% 1264183 ± 4% sched_debug.cpu.avg_idle.avg
4207 ± 7% +257.6% 15044 ± 6% sched_debug.cpu.nr_switches.avg
13511 ± 20% +276.6% 50888 ± 62% sched_debug.cpu.nr_switches.max
1440 ± 9% +592.5% 9975 ± 4% sched_debug.cpu.nr_switches.min
2591 ± 14% +129.9% 5958 ± 61% sched_debug.cpu.nr_switches.stddev
19.42 ± 31% +137.8% 46.17 ± 17% sched_debug.cpu.nr_uninterruptible.max
-14.67 +891.5% -145.42 sched_debug.cpu.nr_uninterruptible.min
4.79 ± 10% +353.6% 21.71 ± 15% sched_debug.cpu.nr_uninterruptible.stddev
0.94 ± 5% -30.7% 0.65 ± 2% perf-stat.i.MPKI
6.179e+08 ± 12% +373.6% 2.927e+09 ± 4% perf-stat.i.branch-instructions
3.29 ± 11% -1.8 1.47 ± 8% perf-stat.i.branch-miss-rate%
43227294 ± 15% +20.8% 52203685 ± 3% perf-stat.i.branch-misses
17.76 ± 6% +19.1 36.85 perf-stat.i.cache-miss-rate%
1306832 ± 11% +601.7% 9169533 ± 4% perf-stat.i.cache-misses
8673239 ± 10% +206.9% 26621069 ± 3% perf-stat.i.cache-references
3772 ± 10% +618.3% 27098 ± 8% perf-stat.i.context-switches
2.43 ± 4% +32.5% 3.23 perf-stat.i.cpi
4.243e+09 ± 11% +964.2% 4.515e+10 ± 6% perf-stat.i.cpu-cycles
116.32 ± 2% +203.4% 352.94 ± 3% perf-stat.i.cpu-migrations
3133 ± 3% +59.5% 4996 ± 2% perf-stat.i.cycles-between-cache-misses
3.037e+09 ± 12% +376.7% 1.448e+10 ± 4% perf-stat.i.instructions
0.55 ± 4% -40.3% 0.33 ± 2% perf-stat.i.ipc
0.43 ± 4% +46.9% 0.63 ± 2% perf-stat.overall.MPKI
6.97 ± 3% -5.2 1.79 ± 7% perf-stat.overall.branch-miss-rate%
15.06 ± 4% +19.3 34.39 perf-stat.overall.cache-miss-rate%
1.40 ± 3% +122.3% 3.12 perf-stat.overall.cpi
3252 ± 2% +51.3% 4921 ± 3% perf-stat.overall.cycles-between-cache-misses
0.71 ± 3% -55.1% 0.32 perf-stat.overall.ipc
6.093e+08 ± 12% +372.7% 2.88e+09 ± 4% perf-stat.ps.branch-instructions
42634564 ± 15% +20.7% 51439404 ± 3% perf-stat.ps.branch-misses
1287683 ± 11% +600.7% 9022871 ± 4% perf-stat.ps.cache-misses
8556164 ± 10% +206.5% 26227629 ± 3% perf-stat.ps.cache-references
3710 ± 10% +618.7% 26664 ± 8% perf-stat.ps.context-switches
4.185e+09 ± 11% +961.5% 4.442e+10 ± 6% perf-stat.ps.cpu-cycles
114.49 ± 2% +203.8% 347.78 ± 3% perf-stat.ps.cpu-migrations
2.995e+09 ± 12% +375.7% 1.425e+10 ± 4% perf-stat.ps.instructions
1.865e+11 ± 12% +369.7% 8.759e+11 ± 4% 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
Powered by blists - more mailing lists