Greeting,
FYI, we noticed a -42.5% regression of stress-ng.kill.ops_per_sec due to commit:
commit: 1ad22fcc4d0d2fb2e0f35aed555a86d016d5e590 ("apparmor: rework profile->rules to be a list")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: stress-ng
on test machine: 96 threads 2 sockets Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz (Cascade Lake) with 512G memory
with following parameters:
nr_threads: 10%
disk: 1HDD
testtime: 60s
fs: ext4
class: os
test: kill
cpufreq_governor: performance
If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <[email protected]>
| Link: https://lore.kernel.org/oe-lkp/[email protected]
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
sudo bin/lkp install job.yaml # job file is attached in this email
bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
sudo bin/lkp run generated-yaml-file
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
=========================================================================================
class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
os/gcc-11/performance/1HDD/ext4/x86_64-rhel-8.3/10%/debian-11.1-x86_64-20220510.cgz/lkp-csl-2sp7/kill/stress-ng/60s
commit:
217af7e2f4 ("apparmor: refactor profile rules and attachments")
1ad22fcc4d ("apparmor: rework profile->rules to be a list")
217af7e2f4deb629 1ad22fcc4d0d2fb2e0f35aed555
---------------- ---------------------------
%stddev %change %stddev
\ | \
2820 ? 2% -42.7% 1616 stress-ng.kill.kill_calls_per_sec
511090 -42.5% 293660 stress-ng.kill.ops
8518 -42.5% 4894 stress-ng.kill.ops_per_sec
3778 ? 2% -58.4% 1571 ? 3% stress-ng.time.involuntary_context_switches
859945 ? 3% -29.7% 604857 ? 2% stress-ng.time.voluntary_context_switches
70351 ? 12% +22.0% 85795 ? 8% meminfo.AnonHugePages
0.05 ? 7% -22.6% 0.04 turbostat.IPC
28627 ? 3% -27.0% 20903 ? 2% vmstat.system.cs
128187 ? 92% +78.6% 228921 ? 49% sched_debug.cfs_rq:/.min_vruntime.max
20901 ?107% +124.7% 46965 ? 59% sched_debug.cfs_rq:/.min_vruntime.stddev
-24201 -149.5% 11969 ? 74% sched_debug.cfs_rq:/.spread0.avg
69818 ?123% +170.9% 189126 ? 59% sched_debug.cfs_rq:/.spread0.max
20904 ?107% +124.7% 46965 ? 59% sched_debug.cfs_rq:/.spread0.stddev
1.19 ? 8% +6.3 7.48 ? 10% perf-profile.calltrace.cycles-pp.aa_may_signal.apparmor_task_kill.security_task_kill.kill_something_info.__x64_sys_kill
0.58 ? 8% -0.2 0.40 ? 13% perf-profile.children.cycles-pp.check_kill_permission
0.30 ? 12% -0.1 0.16 ? 8% perf-profile.children.cycles-pp.profile_signal_perm
0.20 ? 10% -0.1 0.12 ? 13% perf-profile.children.cycles-pp.audit_signal_info_syscall
0.21 ? 23% -0.1 0.14 ? 12% perf-profile.children.cycles-pp.pause
0.18 ? 16% -0.1 0.11 ? 20% perf-profile.children.cycles-pp.__task_pid_nr_ns
0.15 ? 10% -0.1 0.09 ? 14% perf-profile.children.cycles-pp.__kill_pgrp_info
0.16 ? 13% -0.1 0.10 ? 14% perf-profile.children.cycles-pp.exit_to_user_mode_loop
0.16 ? 15% -0.1 0.11 ? 12% perf-profile.children.cycles-pp.exit_to_user_mode_prepare
0.10 ? 9% -0.0 0.06 ? 11% perf-profile.children.cycles-pp.audit_signal_info
0.07 ? 18% -0.0 0.04 ? 71% perf-profile.children.cycles-pp.alloc_empty_file
0.07 ? 18% -0.0 0.04 ? 71% perf-profile.children.cycles-pp.__alloc_file
0.11 ? 7% -0.0 0.08 ? 16% perf-profile.children.cycles-pp.do_send_sig_info
0.10 ? 12% -0.0 0.06 ? 14% perf-profile.children.cycles-pp.__send_signal_locked
0.10 ? 17% -0.0 0.06 ? 19% perf-profile.children.cycles-pp.arch_do_signal_or_restart
0.06 ? 14% +0.0 0.11 ? 18% perf-profile.children.cycles-pp.ns_capable
0.06 ? 14% +0.0 0.11 ? 18% perf-profile.children.cycles-pp.security_capable
0.06 ? 14% +0.0 0.11 ? 18% perf-profile.children.cycles-pp.apparmor_capable
0.09 ? 11% +0.0 0.14 ? 23% perf-profile.children.cycles-pp.kernel_clone
0.09 ? 8% +0.0 0.14 ? 24% perf-profile.children.cycles-pp.copy_process
0.04 ? 71% +0.0 0.08 ? 18% perf-profile.children.cycles-pp.__do_sys_clone
0.07 ? 18% +0.1 0.16 ? 9% perf-profile.children.cycles-pp.__x64_sys_exit_group
0.07 ? 18% +0.1 0.16 ? 9% perf-profile.children.cycles-pp.do_group_exit
0.07 ? 18% +0.1 0.16 ? 9% perf-profile.children.cycles-pp.do_exit
0.06 ? 47% +0.1 0.15 ? 8% perf-profile.children.cycles-pp.exit_notify
0.29 ? 12% +0.1 0.38 ? 11% perf-profile.children.cycles-pp.queued_read_lock_slowpath
0.15 ? 10% +0.1 0.28 ? 13% perf-profile.children.cycles-pp.queued_write_lock_slowpath
0.36 ? 10% +0.1 0.50 ? 10% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
1.24 ? 8% +6.3 7.56 ? 10% perf-profile.children.cycles-pp.aa_may_signal
0.28 ? 12% -0.1 0.15 ? 10% perf-profile.self.cycles-pp.profile_signal_perm
0.23 ? 16% -0.1 0.12 ? 17% perf-profile.self.cycles-pp.check_kill_permission
0.20 ? 10% -0.1 0.12 ? 13% perf-profile.self.cycles-pp.audit_signal_info_syscall
0.15 ? 11% -0.1 0.08 ? 13% perf-profile.self.cycles-pp.kill_something_info
0.16 ? 6% -0.1 0.10 ? 20% perf-profile.self.cycles-pp.security_task_kill
0.14 ? 11% -0.1 0.09 ? 14% perf-profile.self.cycles-pp.__kill_pgrp_info
0.16 ? 15% -0.1 0.10 ? 22% perf-profile.self.cycles-pp.__task_pid_nr_ns
0.08 ? 13% -0.1 0.04 ? 71% perf-profile.self.cycles-pp.audit_signal_info
0.06 ? 14% +0.0 0.11 ? 16% perf-profile.self.cycles-pp.apparmor_capable
0.36 ? 10% +0.1 0.50 ? 10% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
0.96 ? 8% +6.4 7.38 ? 10% perf-profile.self.cycles-pp.aa_may_signal
16.17 +18.8% 19.21 perf-stat.i.MPKI
8.529e+08 -30.2% 5.952e+08 perf-stat.i.branch-instructions
0.68 ? 3% +0.1 0.79 ? 2% perf-stat.i.branch-miss-rate%
7256065 ? 3% -7.7% 6698864 ? 2% perf-stat.i.branch-misses
13.08 ? 3% +6.0 19.07 perf-stat.i.cache-miss-rate%
9361692 ? 2% +16.3% 10884924 ? 2% perf-stat.i.cache-misses
71450858 -20.7% 56687571 ? 2% perf-stat.i.cache-references
29596 ? 3% -27.5% 21452 ? 2% perf-stat.i.context-switches
6.21 +50.4% 9.34 perf-stat.i.cpi
2974 ? 2% -14.4% 2547 ? 2% perf-stat.i.cycles-between-cache-misses
0.02 ? 13% +0.0 0.03 ? 6% perf-stat.i.dTLB-load-miss-rate%
1.408e+09 -32.2% 9.544e+08 perf-stat.i.dTLB-loads
7.763e+08 -33.2% 5.183e+08 perf-stat.i.dTLB-stores
34.02 -3.0 31.06 perf-stat.i.iTLB-load-miss-rate%
1109352 ? 2% -18.6% 903511 perf-stat.i.iTLB-load-misses
2150307 -6.8% 2003881 perf-stat.i.iTLB-loads
4.552e+09 -30.7% 3.153e+09 perf-stat.i.instructions
4134 ? 2% -15.1% 3508 perf-stat.i.instructions-per-iTLB-miss
0.19 -26.4% 0.14 perf-stat.i.ipc
814.65 -16.5% 680.21 perf-stat.i.metric.K/sec
31.63 -31.9% 21.53 perf-stat.i.metric.M/sec
80.72 ? 3% +9.8 90.56 perf-stat.i.node-load-miss-rate%
325431 ? 5% +970.6% 3483935 ? 2% perf-stat.i.node-load-misses
79936 ? 19% +323.7% 338676 ? 6% perf-stat.i.node-loads
4260901 ? 2% -34.5% 2792405 perf-stat.i.node-store-misses
15.70 +14.6% 18.00 perf-stat.overall.MPKI
0.85 ? 2% +0.3 1.12 ? 2% perf-stat.overall.branch-miss-rate%
13.11 ? 2% +6.1 19.20 perf-stat.overall.cache-miss-rate%
6.03 +44.8% 8.73 perf-stat.overall.cpi
2931 -13.8% 2527 ? 2% perf-stat.overall.cycles-between-cache-misses
0.02 ? 10% +0.0 0.03 ? 7% perf-stat.overall.dTLB-load-miss-rate%
34.03 -3.0 31.07 perf-stat.overall.iTLB-load-miss-rate%
4104 ? 2% -15.0% 3487 perf-stat.overall.instructions-per-iTLB-miss
0.17 -30.9% 0.11 perf-stat.overall.ipc
80.44 ? 3% +10.7 91.14 perf-stat.overall.node-load-miss-rate%
8.39e+08 -30.3% 5.852e+08 perf-stat.ps.branch-instructions
7111005 ? 2% -7.8% 6555177 ? 2% perf-stat.ps.branch-misses
9215998 ? 2% +16.3% 10714798 ? 2% perf-stat.ps.cache-misses
70327211 -20.7% 55796363 ? 2% perf-stat.ps.cache-references
29136 ? 3% -27.5% 21118 ? 2% perf-stat.ps.context-switches
1.385e+09 -32.2% 9.386e+08 perf-stat.ps.dTLB-loads
7.64e+08 -33.3% 5.099e+08 perf-stat.ps.dTLB-stores
1091797 ? 2% -18.6% 888828 perf-stat.ps.iTLB-load-misses
2116297 -6.8% 1971620 perf-stat.ps.iTLB-loads
4.478e+09 -30.8% 3.1e+09 perf-stat.ps.instructions
320258 ? 5% +970.9% 3429628 ? 2% perf-stat.ps.node-load-misses
78661 ? 19% +323.8% 333386 ? 6% perf-stat.ps.node-loads
4195116 ? 2% -34.5% 2749032 perf-stat.ps.node-store-misses
2.847e+11 -31.2% 1.959e+11 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
Hi John,
On 12/31/2022 3:18 PM, kernel test robot wrote:
>
> Greeting,
>
> FYI, we noticed a -42.5% regression of stress-ng.kill.ops_per_sec due to commit:
>
>
> commit: 1ad22fcc4d0d2fb2e0f35aed555a86d016d5e590 ("apparmor: rework profile->rules to be a list")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
>
> in testcase: stress-ng
> on test machine: 96 threads 2 sockets Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz (Cascade Lake) with 512G memory
> with following parameters:
>
> nr_threads: 10%
> disk: 1HDD
> testtime: 60s
> fs: ext4
> class: os
> test: kill
> cpufreq_governor: performance
Do you think any other information need be collected for this regression
report? Thanks.
Regards
Yin, Fengwei
>
>
>
>
> If you fix the issue, kindly add following tag
> | Reported-by: kernel test robot <[email protected]>
> | Link: https://lore.kernel.org/oe-lkp/[email protected]
>
>
> Details are as below:
> -------------------------------------------------------------------------------------------------->
>
>
> To reproduce:
>
> git clone https://github.com/intel/lkp-tests.git
> cd lkp-tests
> sudo bin/lkp install job.yaml # job file is attached in this email
> bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
> sudo bin/lkp run generated-yaml-file
>
> # if come across any failure that blocks the test,
> # please remove ~/.lkp and /lkp dir to run from a clean state.
>
> =========================================================================================
> class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
> os/gcc-11/performance/1HDD/ext4/x86_64-rhel-8.3/10%/debian-11.1-x86_64-20220510.cgz/lkp-csl-2sp7/kill/stress-ng/60s
>
> commit:
> 217af7e2f4 ("apparmor: refactor profile rules and attachments")
> 1ad22fcc4d ("apparmor: rework profile->rules to be a list")
>
> 217af7e2f4deb629 1ad22fcc4d0d2fb2e0f35aed555
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 2820 ± 2% -42.7% 1616 stress-ng.kill.kill_calls_per_sec
> 511090 -42.5% 293660 stress-ng.kill.ops
> 8518 -42.5% 4894 stress-ng.kill.ops_per_sec
> 3778 ± 2% -58.4% 1571 ± 3% stress-ng.time.involuntary_context_switches
> 859945 ± 3% -29.7% 604857 ± 2% stress-ng.time.voluntary_context_switches
> 70351 ± 12% +22.0% 85795 ± 8% meminfo.AnonHugePages
> 0.05 ± 7% -22.6% 0.04 turbostat.IPC
> 28627 ± 3% -27.0% 20903 ± 2% vmstat.system.cs
> 128187 ± 92% +78.6% 228921 ± 49% sched_debug.cfs_rq:/.min_vruntime.max
> 20901 ±107% +124.7% 46965 ± 59% sched_debug.cfs_rq:/.min_vruntime.stddev
> -24201 -149.5% 11969 ± 74% sched_debug.cfs_rq:/.spread0.avg
> 69818 ±123% +170.9% 189126 ± 59% sched_debug.cfs_rq:/.spread0.max
> 20904 ±107% +124.7% 46965 ± 59% sched_debug.cfs_rq:/.spread0.stddev
> 1.19 ± 8% +6.3 7.48 ± 10% perf-profile.calltrace.cycles-pp.aa_may_signal.apparmor_task_kill.security_task_kill.kill_something_info.__x64_sys_kill
> 0.58 ± 8% -0.2 0.40 ± 13% perf-profile.children.cycles-pp.check_kill_permission
> 0.30 ± 12% -0.1 0.16 ± 8% perf-profile.children.cycles-pp.profile_signal_perm
> 0.20 ± 10% -0.1 0.12 ± 13% perf-profile.children.cycles-pp.audit_signal_info_syscall
> 0.21 ± 23% -0.1 0.14 ± 12% perf-profile.children.cycles-pp.pause
> 0.18 ± 16% -0.1 0.11 ± 20% perf-profile.children.cycles-pp.__task_pid_nr_ns
> 0.15 ± 10% -0.1 0.09 ± 14% perf-profile.children.cycles-pp.__kill_pgrp_info
> 0.16 ± 13% -0.1 0.10 ± 14% perf-profile.children.cycles-pp.exit_to_user_mode_loop
> 0.16 ± 15% -0.1 0.11 ± 12% perf-profile.children.cycles-pp.exit_to_user_mode_prepare
> 0.10 ± 9% -0.0 0.06 ± 11% perf-profile.children.cycles-pp.audit_signal_info
> 0.07 ± 18% -0.0 0.04 ± 71% perf-profile.children.cycles-pp.alloc_empty_file
> 0.07 ± 18% -0.0 0.04 ± 71% perf-profile.children.cycles-pp.__alloc_file
> 0.11 ± 7% -0.0 0.08 ± 16% perf-profile.children.cycles-pp.do_send_sig_info
> 0.10 ± 12% -0.0 0.06 ± 14% perf-profile.children.cycles-pp.__send_signal_locked
> 0.10 ± 17% -0.0 0.06 ± 19% perf-profile.children.cycles-pp.arch_do_signal_or_restart
> 0.06 ± 14% +0.0 0.11 ± 18% perf-profile.children.cycles-pp.ns_capable
> 0.06 ± 14% +0.0 0.11 ± 18% perf-profile.children.cycles-pp.security_capable
> 0.06 ± 14% +0.0 0.11 ± 18% perf-profile.children.cycles-pp.apparmor_capable
> 0.09 ± 11% +0.0 0.14 ± 23% perf-profile.children.cycles-pp.kernel_clone
> 0.09 ± 8% +0.0 0.14 ± 24% perf-profile.children.cycles-pp.copy_process
> 0.04 ± 71% +0.0 0.08 ± 18% perf-profile.children.cycles-pp.__do_sys_clone
> 0.07 ± 18% +0.1 0.16 ± 9% perf-profile.children.cycles-pp.__x64_sys_exit_group
> 0.07 ± 18% +0.1 0.16 ± 9% perf-profile.children.cycles-pp.do_group_exit
> 0.07 ± 18% +0.1 0.16 ± 9% perf-profile.children.cycles-pp.do_exit
> 0.06 ± 47% +0.1 0.15 ± 8% perf-profile.children.cycles-pp.exit_notify
> 0.29 ± 12% +0.1 0.38 ± 11% perf-profile.children.cycles-pp.queued_read_lock_slowpath
> 0.15 ± 10% +0.1 0.28 ± 13% perf-profile.children.cycles-pp.queued_write_lock_slowpath
> 0.36 ± 10% +0.1 0.50 ± 10% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
> 1.24 ± 8% +6.3 7.56 ± 10% perf-profile.children.cycles-pp.aa_may_signal
> 0.28 ± 12% -0.1 0.15 ± 10% perf-profile.self.cycles-pp.profile_signal_perm
> 0.23 ± 16% -0.1 0.12 ± 17% perf-profile.self.cycles-pp.check_kill_permission
> 0.20 ± 10% -0.1 0.12 ± 13% perf-profile.self.cycles-pp.audit_signal_info_syscall
> 0.15 ± 11% -0.1 0.08 ± 13% perf-profile.self.cycles-pp.kill_something_info
> 0.16 ± 6% -0.1 0.10 ± 20% perf-profile.self.cycles-pp.security_task_kill
> 0.14 ± 11% -0.1 0.09 ± 14% perf-profile.self.cycles-pp.__kill_pgrp_info
> 0.16 ± 15% -0.1 0.10 ± 22% perf-profile.self.cycles-pp.__task_pid_nr_ns
> 0.08 ± 13% -0.1 0.04 ± 71% perf-profile.self.cycles-pp.audit_signal_info
> 0.06 ± 14% +0.0 0.11 ± 16% perf-profile.self.cycles-pp.apparmor_capable
> 0.36 ± 10% +0.1 0.50 ± 10% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
> 0.96 ± 8% +6.4 7.38 ± 10% perf-profile.self.cycles-pp.aa_may_signal
> 16.17 +18.8% 19.21 perf-stat.i.MPKI
> 8.529e+08 -30.2% 5.952e+08 perf-stat.i.branch-instructions
> 0.68 ± 3% +0.1 0.79 ± 2% perf-stat.i.branch-miss-rate%
> 7256065 ± 3% -7.7% 6698864 ± 2% perf-stat.i.branch-misses
> 13.08 ± 3% +6.0 19.07 perf-stat.i.cache-miss-rate%
> 9361692 ± 2% +16.3% 10884924 ± 2% perf-stat.i.cache-misses
> 71450858 -20.7% 56687571 ± 2% perf-stat.i.cache-references
> 29596 ± 3% -27.5% 21452 ± 2% perf-stat.i.context-switches
> 6.21 +50.4% 9.34 perf-stat.i.cpi
> 2974 ± 2% -14.4% 2547 ± 2% perf-stat.i.cycles-between-cache-misses
> 0.02 ± 13% +0.0 0.03 ± 6% perf-stat.i.dTLB-load-miss-rate%
> 1.408e+09 -32.2% 9.544e+08 perf-stat.i.dTLB-loads
> 7.763e+08 -33.2% 5.183e+08 perf-stat.i.dTLB-stores
> 34.02 -3.0 31.06 perf-stat.i.iTLB-load-miss-rate%
> 1109352 ± 2% -18.6% 903511 perf-stat.i.iTLB-load-misses
> 2150307 -6.8% 2003881 perf-stat.i.iTLB-loads
> 4.552e+09 -30.7% 3.153e+09 perf-stat.i.instructions
> 4134 ± 2% -15.1% 3508 perf-stat.i.instructions-per-iTLB-miss
> 0.19 -26.4% 0.14 perf-stat.i.ipc
> 814.65 -16.5% 680.21 perf-stat.i.metric.K/sec
> 31.63 -31.9% 21.53 perf-stat.i.metric.M/sec
> 80.72 ± 3% +9.8 90.56 perf-stat.i.node-load-miss-rate%
> 325431 ± 5% +970.6% 3483935 ± 2% perf-stat.i.node-load-misses
> 79936 ± 19% +323.7% 338676 ± 6% perf-stat.i.node-loads
> 4260901 ± 2% -34.5% 2792405 perf-stat.i.node-store-misses
> 15.70 +14.6% 18.00 perf-stat.overall.MPKI
> 0.85 ± 2% +0.3 1.12 ± 2% perf-stat.overall.branch-miss-rate%
> 13.11 ± 2% +6.1 19.20 perf-stat.overall.cache-miss-rate%
> 6.03 +44.8% 8.73 perf-stat.overall.cpi
> 2931 -13.8% 2527 ± 2% perf-stat.overall.cycles-between-cache-misses
> 0.02 ± 10% +0.0 0.03 ± 7% perf-stat.overall.dTLB-load-miss-rate%
> 34.03 -3.0 31.07 perf-stat.overall.iTLB-load-miss-rate%
> 4104 ± 2% -15.0% 3487 perf-stat.overall.instructions-per-iTLB-miss
> 0.17 -30.9% 0.11 perf-stat.overall.ipc
> 80.44 ± 3% +10.7 91.14 perf-stat.overall.node-load-miss-rate%
> 8.39e+08 -30.3% 5.852e+08 perf-stat.ps.branch-instructions
> 7111005 ± 2% -7.8% 6555177 ± 2% perf-stat.ps.branch-misses
> 9215998 ± 2% +16.3% 10714798 ± 2% perf-stat.ps.cache-misses
> 70327211 -20.7% 55796363 ± 2% perf-stat.ps.cache-references
> 29136 ± 3% -27.5% 21118 ± 2% perf-stat.ps.context-switches
> 1.385e+09 -32.2% 9.386e+08 perf-stat.ps.dTLB-loads
> 7.64e+08 -33.3% 5.099e+08 perf-stat.ps.dTLB-stores
> 1091797 ± 2% -18.6% 888828 perf-stat.ps.iTLB-load-misses
> 2116297 -6.8% 1971620 perf-stat.ps.iTLB-loads
> 4.478e+09 -30.8% 3.1e+09 perf-stat.ps.instructions
> 320258 ± 5% +970.9% 3429628 ± 2% perf-stat.ps.node-load-misses
> 78661 ± 19% +323.8% 333386 ± 6% perf-stat.ps.node-loads
> 4195116 ± 2% -34.5% 2749032 perf-stat.ps.node-store-misses
> 2.847e+11 -31.2% 1.959e+11 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.
>
>
On 1/27/23 17:37, Yin, Fengwei wrote:
> Hi John,
>
> On 12/31/2022 3:18 PM, kernel test robot wrote:
>>
>> Greeting,
>>
>> FYI, we noticed a -42.5% regression of stress-ng.kill.ops_per_sec due to commit:
>>
>>
>> commit: 1ad22fcc4d0d2fb2e0f35aed555a86d016d5e590 ("apparmor: rework profile->rules to be a list")
>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
>>
>> in testcase: stress-ng
>> on test machine: 96 threads 2 sockets Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz (Cascade Lake) with 512G memory
>> with following parameters:
>>
>> nr_threads: 10%
>> disk: 1HDD
>> testtime: 60s
>> fs: ext4
>> class: os
>> test: kill
>> cpufreq_governor: performance
> Do you think any other information need be collected for this regression
> report? Thanks.
>
no, I know what is causing it, I just haven't had time to fix it yet.
On 1/28/2023 10:34 AM, John Johansen wrote:
> On 1/27/23 17:37, Yin, Fengwei wrote:
>> Hi John,
>>
>> On 12/31/2022 3:18 PM, kernel test robot wrote:
>>>
>>> Greeting,
>>>
>>> FYI, we noticed a -42.5% regression of stress-ng.kill.ops_per_sec due to commit:
>>>
>>>
>>> commit: 1ad22fcc4d0d2fb2e0f35aed555a86d016d5e590 ("apparmor: rework profile->rules to be a list")
>>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
>>>
>>> in testcase: stress-ng
>>> on test machine: 96 threads 2 sockets Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz (Cascade Lake) with 512G memory
>>> with following parameters:
>>>
>>> nr_threads: 10%
>>> disk: 1HDD
>>> testtime: 60s
>>> fs: ext4
>>> class: os
>>> test: kill
>>> cpufreq_governor: performance
>> Do you think any other information need be collected for this regression
>> report? Thanks.
>>
>
> no, I know what is causing it, I just haven't had time to fix it yet.
Great. Let us know if you want us to try something out. Thanks.
Regards
Yin, Fengwei
>