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Date: Mon, 17 Apr 2017 10:52:46 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Yunlei He <heyunlei@...wei.com>
Cc: Jaegeuk Kim <jaegeuk@...nel.org>,
LKML <linux-kernel@...r.kernel.org>,
linux-f2fs-devel@...ts.sourceforge.net, lkp@...org
Subject: [lkp-robot] [f2fs] 59c9081bc8: aim7.jobs-per-min +12% improvement
Greeting,
FYI, we noticed a +12% improvement of aim7.jobs-per-min due to commit:
commit: 59c9081bc86ef0b273a41abf2c1f413301429a6d ("f2fs: allow write page cache when writting cp")
https://git.kernel.org/cgit/linux/kernel/git/jaegeuk/f2fs.git dev-test
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_rw
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/01org/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_rw-3000-performance/lkp-ivb-ep01
22588f8773f68744 59c9081bc86ef0b273a41abf2c
---------------- --------------------------
108504 12% 121167 aim7.jobs-per-min
827142 8% 889247 aim7.time.voluntary_context_switches
166 -10% 149 aim7.time.elapsed_time
166 -10% 149 aim7.time.elapsed_time.max
5892 -12% 5176 aim7.time.system_time
575818 ± 4% -14% 495473 ± 3% aim7.time.involuntary_context_switches
426869 7% 455589 interrupts.CAL:Function_call_interrupts
7118 12% 7943 vmstat.io.bo
46543 47718 vmstat.system.in
1054904 ± 89% -1e+06 53098 ±173% latency_stats.avg.call_rwsem_down_write_failed.do_unlinkat.SyS_unlink.do_syscall_64.return_from_SYSCALL_64
4691 ±115% -5e+03 78 ± 6% latency_stats.max.kthread_park.watchdog_park_threads.watchdog_enable_all_cpus.proc_watchdog_update.proc_watchdog_common.proc_nmi_watchdog.proc_sys_call_handler.proc_sys_write.__vfs_write.vfs_write.SyS_write.entry_SYSCALL_64_fastpath
5978 ± 90% -5e+03 1239 ± 13% latency_stats.sum.kthread_park.watchdog_park_threads.watchdog_enable_all_cpus.proc_watchdog_update.proc_watchdog_common.proc_nmi_watchdog.proc_sys_call_handler.proc_sys_write.__vfs_write.vfs_write.SyS_write.entry_SYSCALL_64_fastpath
89.24 87.60 turbostat.%Busy
159 156 turbostat.PkgWatt
131 128 turbostat.CorWatt
2690 2624 turbostat.Avg_MHz
92438778 ± 28% 69% 1.564e+08 ± 19% perf-stat.iTLB-loads
0.19 14% 0.21 ± 5% perf-stat.branch-miss-rate%
0.27 6% 0.29 perf-stat.ipc
6.082e+09 -3% 5.894e+09 perf-stat.node-stores
4.699e+09 -5% 4.485e+09 ± 3% perf-stat.node-store-misses
1.351e+12 -6% 1.266e+12 perf-stat.dTLB-loads
4.872e+12 -7% 4.516e+12 perf-stat.instructions
2687098 ± 3% -8% 2473467 ± 3% perf-stat.context-switches
1.068e+12 -8% 9.801e+11 perf-stat.branch-instructions
0.14 ± 6% -10% 0.13 ± 5% perf-stat.dTLB-store-miss-rate%
6.616e+08 ± 6% -10% 5.979e+08 ± 5% perf-stat.dTLB-store-misses
1.785e+13 -13% 1.56e+13 perf-stat.cpu-cycles
2.855e+09 ± 13% -19% 2.303e+09 ± 14% perf-stat.node-loads
2.122e+09 ± 16% -22% 1.656e+09 ± 17% perf-stat.node-load-misses
38.81 ± 22% -29% 27.70 ± 22% perf-stat.iTLB-load-miss-rate%
aim7.jobs-per-min
140000 ++-----------------------------------------------------------------+
| |
120000 O+O O O O O O O O O O O O O O O O O O O O O O O O O O |
| *.*. .*.*..*.*.*.*.*.*.* O *.*..*.*.*.*.*.*
100000 ++: * : : |
| : : : |
80000 ++ : *.*.. .*.* *.*. .*.* |
|: : : * : : * |
60000 ++ : : : : |
|: : : : : |
40000 ++ : : : : |
|: : : : : |
20000 ++ :: :: |
| : : |
0 *+-------------------------*------------*--------------------------+
[*] 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-4.11.0-rc3-00078-g59c9081" of type "text/plain" (158021 bytes)
View attachment "job-script" of type "text/plain" (6774 bytes)
View attachment "job.yaml" of type "text/plain" (4186 bytes)
View attachment "reproduce" of type "text/plain" (525 bytes)
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