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Date: Sun, 25 Feb 2018 23:05:05 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Jeff Layton <jlayton@...hat.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [lkp-robot] [iversion] c0cef30e4f: aim7.jobs-per-min -18.0%
regression
Greeting,
FYI, we noticed a -18.0% regression of aim7.jobs-per-min due to commit:
commit: c0cef30e4ff0dc025f4a1660b8f0ba43ed58426e ("iversion: make inode_cmp_iversion{+raw} return bool instead of s64")
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: 4BRD_12G
md: RAID0
fs: xfs
test: disk_src
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 https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
=========================================================================================
compiler/cpufreq_governor/disk/fs/kconfig/load/md/rootfs/tbox_group/test/testcase:
gcc-7/performance/4BRD_12G/xfs/x86_64-rhel-7.2/3000/RAID0/debian-x86_64-2016-08-31.cgz/lkp-ivb-ep01/disk_src/aim7
commit:
3da90b159b (" f2fs-for-4.16-rc1")
c0cef30e4f ("iversion: make inode_cmp_iversion{+raw} return bool instead of s64")
3da90b159b146672 c0cef30e4ff0dc025f4a1660b8
---------------- --------------------------
%stddev %change %stddev
\ | \
40183 -18.0% 32964 aim7.jobs-per-min
448.60 +21.9% 546.68 aim7.time.elapsed_time
448.60 +21.9% 546.68 aim7.time.elapsed_time.max
5615 ± 5% +33.4% 7489 ± 4% aim7.time.involuntary_context_switches
3086 +14.0% 3518 aim7.time.system_time
19439782 -5.6% 18359474 aim7.time.voluntary_context_switches
199333 +14.3% 227794 ± 2% interrupts.CAL:Function_call_interrupts
0.59 -0.1 0.50 mpstat.cpu.usr%
2839401 +16.0% 3293688 softirqs.SCHED
7600068 +15.1% 8747820 softirqs.TIMER
118.00 ± 43% +98.7% 234.50 ± 15% vmstat.io.bo
87840 -22.4% 68154 vmstat.system.cs
552798 ± 6% +15.8% 640107 ± 4% numa-numastat.node0.local_node
557345 ± 6% +15.7% 644666 ± 4% numa-numastat.node0.numa_hit
528341 ± 7% +21.7% 642933 ± 4% numa-numastat.node1.local_node
531604 ± 7% +21.6% 646209 ± 4% numa-numastat.node1.numa_hit
2.147e+09 -12.4% 1.88e+09 cpuidle.C1.time
13702041 -14.7% 11683737 cpuidle.C1.usage
2.082e+08 ± 4% +28.1% 2.667e+08 ± 5% cpuidle.C1E.time
4.719e+08 ± 2% +23.1% 5.807e+08 ± 4% cpuidle.C3.time
1.141e+10 +31.0% 1.496e+10 cpuidle.C6.time
15672622 +27.8% 20031028 cpuidle.C6.usage
13520572 ± 3% +29.5% 17514398 ± 9% cpuidle.POLL.time
278.25 ± 5% -46.0% 150.25 ± 73% numa-vmstat.node0.nr_dirtied
3200 ± 14% -20.6% 2542 ± 19% numa-vmstat.node0.nr_mapped
277.75 ± 5% -46.2% 149.50 ± 73% numa-vmstat.node0.nr_written
28.50 ± 52% +448.2% 156.25 ± 70% numa-vmstat.node1.nr_dirtied
2577 ± 19% +26.3% 3255 ± 15% numa-vmstat.node1.nr_mapped
634338 ± 4% +7.8% 683959 ± 4% numa-vmstat.node1.numa_hit
457411 ± 6% +10.8% 506800 ± 5% numa-vmstat.node1.numa_local
3734 ± 8% -11.5% 3306 ± 6% proc-vmstat.numa_hint_faults_local
1114538 +18.3% 1318978 proc-vmstat.numa_hit
1106722 +18.5% 1311136 proc-vmstat.numa_local
22100 +7.5% 23753 ± 4% proc-vmstat.numa_pages_migrated
1174556 +18.0% 1386359 proc-vmstat.pgalloc_normal
1241445 +18.1% 1466086 proc-vmstat.pgfault
1138310 +19.3% 1358132 proc-vmstat.pgfree
22100 +7.5% 23753 ± 4% proc-vmstat.pgmigrate_success
53332 ± 43% +143.0% 129617 ± 14% proc-vmstat.pgpgout
1.42 ± 2% +1.7 3.07 perf-stat.branch-miss-rate%
1.064e+10 +123.3% 2.375e+10 perf-stat.branch-misses
10.79 +0.6 11.43 perf-stat.cache-miss-rate%
5.583e+09 +5.9% 5.915e+09 perf-stat.cache-misses
39652092 -5.0% 37662545 perf-stat.context-switches
1.29 +11.7% 1.44 perf-stat.cpi
4.637e+12 +12.8% 5.23e+12 perf-stat.cpu-cycles
8.653e+11 +9.8% 9.498e+11 ± 2% perf-stat.dTLB-loads
3.654e+11 +12.4% 4.109e+11 perf-stat.dTLB-stores
0.78 -10.5% 0.70 perf-stat.ipc
1214932 +17.9% 1432266 perf-stat.minor-faults
1.334e+09 -1.8% 1.31e+09 perf-stat.node-store-misses
1.651e+09 -1.8% 1.62e+09 perf-stat.node-stores
1214954 +17.9% 1432313 perf-stat.page-faults
256.75 -100.0% 0.00 turbostat.Avg_MHz
21.39 -21.4 0.00 turbostat.Busy%
1200 -100.0% 0.00 turbostat.Bzy_MHz
13695007 -100.0% 0.00 turbostat.C1
11.92 -11.9 0.00 turbostat.C1%
2116683 ± 2% -100.0% 0.00 turbostat.C1E
1.16 ± 4% -1.2 0.00 turbostat.C1E%
3112269 -100.0% 0.00 turbostat.C3
2.62 ± 2% -2.6 0.00 turbostat.C3%
15671277 -100.0% 0.00 turbostat.C6
63.38 -63.4 0.00 turbostat.C6%
49.46 -100.0% 0.00 turbostat.CPU%c1
1.42 ± 2% -100.0% 0.00 turbostat.CPU%c3
27.73 -100.0% 0.00 turbostat.CPU%c6
31.41 -100.0% 0.00 turbostat.CorWatt
63.25 -100.0% 0.00 turbostat.CoreTmp
18919351 -100.0% 0.00 turbostat.IRQ
1.21 ± 18% -100.0% 0.00 turbostat.Pkg%pc2
0.67 ± 31% -100.0% 0.00 turbostat.Pkg%pc6
63.25 -100.0% 0.00 turbostat.PkgTmp
57.63 -100.0% 0.00 turbostat.PkgWatt
30.73 -100.0% 0.00 turbostat.RAMWatt
36030 -100.0% 0.00 turbostat.SMI
3000 -100.0% 0.00 turbostat.TSC_MHz
aim7.jobs-per-min
41000 +-+-----------------------------------------------------------------+
| ..+....+.... ..+....+....+.... ..+....+....+...+.... |
40000 +-+ +. +.. + |
39000 +-+ |
| |
38000 +-+ |
37000 +-+ |
| |
36000 +-+ |
35000 +-+ |
| |
34000 +-+ |
33000 +-+ O O |
O O O O O O O O O O O O O
32000 +-+-----------------------------------------------------------------+
[*] 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-4.15.0-02342-gc0cef30" of type "text/plain" (164682 bytes)
View attachment "job-script" of type "text/plain" (7685 bytes)
View attachment "job.yaml" of type "text/plain" (5333 bytes)
View attachment "reproduce" of type "text/plain" (1054 bytes)
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