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Message-ID: <20170308012154.GB17420@yexl-desktop>
Date: Wed, 8 Mar 2017 09:21:54 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Chao Yu <yuchao0@...wei.com>
Cc: lkp@...org, linux-kernel@...r.kernel.org
Subject: [lkp-robot] [f2fs] 4ac912427c: -33.7% aim7.jobs-per-min regression
Greeting,
We noticed a -33.7 regression of aim7.jobs-per-min due to commit:
commit: 4ac912427c4214d8031d9ad6fbc3bc75e71512df ("f2fs: introduce free nid bitmap")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: aim7
on test machine: 40 threads Intel(R) Xeon(R) CPU E5-2690 v2 @ 3.00GHz with 384G memory
with following parameters:
disk: 1BRD_48G
fs: f2fs
test: disk_wrt
load: 3000
cpufreq_governor: performance
test-description: AIM7 is a traditional UNIX system level benchmark suite which is used to test and measure the performance of multiuser system.
test-url: https://sourceforge.net/projects/aimbench/files/aim-suite7/
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
testcase/path_params/tbox_group/run: aim7/1BRD_48G-f2fs-disk_wrt-3000-performance/lkp-ivb-ep01
ced2c7ea8e99b467 4ac912427c4214d8031d9ad6fb
---------------- --------------------------
%stddev change %stddev
\ | \
117419 ± 1% -33.7% 77863 ± 0% aim7.jobs-per-min
153.78 ± 1% +50.6% 231.63 ± 0% aim7.time.elapsed_time
153.78 ± 1% +50.6% 231.63 ± 0% aim7.time.elapsed_time.max
805644 ± 3% +11.3% 896604 ± 0% aim7.time.involuntary_context_switches
5408 ± 1% +15.4% 6240 ± 0% aim7.time.system_time
5066069 ± 0% +10.5% 5600256 ± 9% meminfo.DirectMap2M
135538 ± 8% -41.9% 78738 ± 8% meminfo.Dirty
980.67 ± 16% -67.8% 315.50 ± 12% meminfo.Writeback
71322 ± 10% -44.0% 39953 ± 1% numa-meminfo.node0.Dirty
11158 ± 18% -27.1% 8132 ± 0% numa-meminfo.node0.Mapped
56776 ± 6% -32.5% 38309 ± 0% numa-meminfo.node1.Dirty
9684 ± 22% +30.9% 12676 ± 0% numa-meminfo.node1.Mapped
6069 ± 57% -78.1% 1328 ± 18% softirqs.NET_RX
619333 ± 4% +8.0% 669152 ± 3% softirqs.RCU
128030 ± 2% +33.3% 170724 ± 0% softirqs.SCHED
2331994 ± 1% +15.3% 2688290 ± 0% softirqs.TIMER
7701 ± 1% -35.7% 4948 ± 3% vmstat.io.bo
64.67 ± 2% -39.7% 39.00 ± 2% vmstat.procs.b
333.33 ± 7% -48.5% 171.50 ± 2% vmstat.procs.r
17530 ± 1% -23.4% 13425 ± 1% vmstat.system.cs
47642 ± 1% -5.3% 45100 ± 1% vmstat.system.in
33522 ± 4% -43.1% 19068 ± 0% proc-vmstat.nr_dirty
236.00 ± 14% -66.1% 80.00 ± 3% proc-vmstat.nr_writeback
33907 ± 4% -43.3% 19222 ± 0% proc-vmstat.nr_zone_write_pending
28194 ± 10% +10.4% 31131 ± 6% proc-vmstat.pgactivate
746402 ± 2% +24.6% 929960 ± 3% proc-vmstat.pgfault
153.78 ± 1% +50.6% 231.63 ± 0% time.elapsed_time
153.78 ± 1% +50.6% 231.63 ± 0% time.elapsed_time.max
805644 ± 3% +11.3% 896604 ± 0% time.involuntary_context_switches
3524 ± 0% -23.4% 2701 ± 0% time.percent_of_cpu_this_job_got
5408 ± 1% +15.4% 6240 ± 0% time.system_time
12.19 ± 1% +36.7% 16.66 ± 0% time.user_time
48260939 ± 3% +12.1% 54110616 ± 2% cpuidle.C1-IVT.time
33149237 ± 5% +52.6% 50597349 ± 1% cpuidle.C1E-IVT.time
89642 ± 4% +52.8% 136976 ± 0% cpuidle.C1E-IVT.usage
13534795 ± 6% +276.3% 50934566 ± 55% cpuidle.C3-IVT.time
42893 ± 6% +138.8% 102439 ± 30% cpuidle.C3-IVT.usage
6.431e+08 ± 2% +390.1% 3.152e+09 ± 10% cpuidle.C6-IVT.time
802009 ± 2% +375.3% 3811880 ± 10% cpuidle.C6-IVT.usage
1535987 ± 4% +156.3% 3936830 ± 4% cpuidle.POLL.time
88.14 ± 0% -24.9% 66.17 ± 3% turbostat.%Busy
2659 ± 0% -44.7% 1471 ± 3% turbostat.Avg_MHz
3016 ± 0% -26.3% 2224 ± 0% turbostat.Bzy_MHz
5.20 ± 5% +127.0% 11.80 ± 2% turbostat.CPU%c1
perf-stat.page-faults
1e+06 ++-----------------------------------------------------------------+
900000 O+O O O O O O O O |
| O O O O O O O O O O |
800000 ++ .*.*. .*. .*. .*.. |
700000 ++*.*.*.*.*..*.* *.*.*.*.*.*..*.* * *.*.*.*.* *.*.*.* *
| : : |
600000 ++: : |
500000 ++ : :|
400000 ++ : :|
|: : :|
300000 ++ : :|
200000 ++ : :|
| : |
100000 ++ : |
0 *+------------------------------------O-O------------------------*-+
perf-stat.minor-faults
1e+06 ++-----------------------------------------------------------------+
900000 O+O O O O O O O O |
| O O O O O O O O O O |
800000 ++ .*.*. .*. .*. .*.. |
700000 ++*.*.*.*.*..*.* *.*.*.*.*.*..*.* * *.*.*.*.* *.*.*.* *
| : : |
600000 ++: : |
500000 ++ : :|
400000 ++ : :|
|: : :|
300000 ++ : :|
200000 ++ : :|
| : |
100000 ++ : |
0 *+------------------------------------O-O------------------------*-+
aim7.jobs-per-min
140000 ++-----------------------------------------------------------------+
| *. .*.. .*.*.*.*.*.*.*..*.*.*.*.*.*. |
120000 ++: *.*.* *.*.* *.*.*.*.*..*.*.*. *
| : * |
100000 ++: : |
|: : |
80000 O+O O O O O O O O O O O O O O O O O O : :|
|: : :|
60000 ++ : :|
|: : :|
40000 ++ : :|
| : :|
20000 ++ : |
| : |
0 *+------------------------------------O-O------------------------*-+
[*] bisect-good sample
[O] bisect-bad sample
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.
Thanks,
Xiaolong
View attachment "config-4.10.0-rc5-00480-g4ac9124" of type "text/plain" (155566 bytes)
View attachment "job-script" of type "text/plain" (6682 bytes)
View attachment "job.yaml" of type "text/plain" (4344 bytes)
View attachment "reproduce" of type "text/plain" (527 bytes)
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