12:43 p.m.
Hi, Michal
Just FYI, this is another bisect result captured by 0day. This is actually the
same as pervious "[mm, vmscan] 5e56dfbd83: fsmark.files_per_sec -11.1%
regression",
just commit sha change due to linux-next rebase.
commit: 74e6b057d2406d596f60fbdd279d1a4e6b830aac ("mm, vmscan: consider eligible
zones in get_scan_count")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
in testcase: fsmark
on test machine: 48 threads Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz with 64G memory
with following parameters:
iterations: 1
nr_threads: 64
disk: 3HDD
md: RAID5
fs: btrfs
filesize: 4M
test_size: 130G
sync_method: NoSync
cpufreq_governor: performance
test-description: The fsmark is a file system benchmark to test synchronous write
workloads, for example, mail servers workload.
test-url: https://sourceforge.net/projects/fsmark/
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:
fsmark/1-64-3HDD-RAID5-btrfs-4M-130G-NoSync-performance/ivb44
588efaf242c620c2 74e6b057d2406d596f60fbdd27
---------------- --------------------------
%stddev change %stddev
\ | \
57.60 -11% 51.20 fsmark.files_per_sec
608 10% 668 fsmark.time.elapsed_time
608 10% 668 fsmark.time.elapsed_time.max
139 6% 148 fsmark.time.system_time
617366 631564 fsmark.time.voluntary_context_switches
14194 ± 14% -22% 11017 ± 5% fsmark.time.involuntary_context_switches
325773 ± 4% 10% 357414 ± 7% interrupts.CAL:Function_call_interrupts
207718 -9% 188656 vmstat.io.bo
93 -5% 89 turbostat.Avg_MHz
5.17 -6% 4.84 turbostat.RAMWatt
3.22 ± 4% -7% 3.00 turbostat.%Busy
1154955 10% 1267383 perf-stat.page-faults
1154939 10% 1267363 perf-stat.minor-faults
4098974 8% 4428264 perf-stat.context-switches
50.11 -16% 41.96 perf-stat.cache-miss-rate%
0.52 ± 9% -16% 0.44 ± 11% perf-stat.dTLB-load-miss-rate%
1.521e+09 ± 11% -16% 1.274e+09 ± 16% perf-stat.dTLB-load-misses
9.988e+09 -17% 8.291e+09 ± 6% perf-stat.cache-misses
4.616e+09 -18% 3.776e+09 ± 10% perf-stat.node-stores
207602 -9% 188553 iostat.md0.wkB/s
12.05 ± 5% 47% 17.75 ± 10% iostat.sda.rrqm/s
103778 -9% 94296 iostat.sda.wkB/s
25724 -9% 23312 iostat.sda.wrqm/s
931 -15% 789 iostat.sda.avgrq-sz
118.65 -37% 74.29 ± 7% iostat.sda.r_await
26.37 -53% 12.39 ± 6% iostat.sda.avgqu-sz
118.68 -54% 54.60 ± 6% iostat.sda.await
118.43 -54% 54.33 ± 6% iostat.sda.w_await
15.16 ± 6% 36% 20.58 ± 6% iostat.sdb.rrqm/s
103754 -9% 94275 iostat.sdb.wkB/s
25719 -9% 23308 iostat.sdb.wrqm/s
931 -15% 788 iostat.sdb.avgrq-sz
122.91 -38% 76.07 ± 4% iostat.sdb.r_await
27.43 -52% 13.08 ± 6% iostat.sdb.avgqu-sz
123.40 -53% 57.69 ± 7% iostat.sdb.await
123.18 -53% 57.43 ± 7% iostat.sdb.w_await
11.91 ± 4% 45% 17.24 ± 11% iostat.sdc.rrqm/s
228 18% 270 iostat.sdc.w/s
103780 -9% 94299 iostat.sdc.wkB/s
25723 -9% 23303 iostat.sdc.wrqm/s
905 -21% 716 iostat.sdc.avgrq-sz
115.29 -40% 69.74 ± 4% iostat.sdc.r_await
26.95 -51% 13.22 ± 6% iostat.sdc.avgqu-sz
118.48 -54% 54.83 ± 6% iostat.sdc.await
118.28 -54% 54.62 ± 6% iostat.sdc.w_await
perf-stat.page-faults
1.28e+06 ++-O-------------------------------------------------------------+
O O O |
1.26e+06 ++ |
| O |
1.24e+06 ++ |
| |
1.22e+06 ++ |
| |
1.2e+06 ++ |
| |
1.18e+06 ++ |
| .*.. .*.. .*. .*.*.. *.. |
1.16e+06 ++.*. .* *. .*..* .*.. .*. *..*.*. + .*.. .*
*. *. *..* * * * * * |
1.14e+06 ++---------------------------------------------------------------+
perf-stat.minor-faults
1.28e+06 ++-O-------------------------------------------------------------+
O O O |
1.26e+06 ++ |
| O |
1.24e+06 ++ |
| |
1.22e+06 ++ |
| |
1.2e+06 ++ |
| |
1.18e+06 ++ |
| .*.. .*.. .*. .*.*.. *.. |
1.16e+06 ++.*. .* *. .*..* .*.. .*. *..*.*. + .*.. .*
*. *. *..* * * * * * |
1.14e+06 ++---------------------------------------------------------------+
perf-stat.cache-miss-rate_
52 ++---------------------------------------------------------------------+
| .*.. * *.*..|
50 ++ .*. + + *.*.. *.. *.. *.. + |
*..* *.. + + .. .. + .*..*.. + *.. + *
| *.* * * *. + * .* * |
48 ++ * *. |
| |
46 ++ |
| |
44 ++ |
| O |
O |
42 ++ O O |
| O |
40 ++---------------------------------------------------------------------+
fsmark.time.elapsed_time
680 ++--------------------------------------------------------------------+
O |
670 ++ O O O |
660 ++ O |
| |
650 ++ |
| |
640 ++ |
| |
630 ++ |
620 ++ |
| .*.. |
610 *+. .*.*.. .*..*.*..*.. .*.*..*..*.*. *.. .*.. .*.*..|
| *.*..*. *. *.*..*. * *. *
600 ++--------------------------------------------------------------------+
fsmark.time.elapsed_time.max
680 ++--------------------------------------------------------------------+
O |
670 ++ O O O |
660 ++ O |
| |
650 ++ |
| |
640 ++ |
| |
630 ++ |
620 ++ |
| .*.. |
610 *+. .*.*.. .*..*.*..*.. .*.*..*..*.*. *.. .*.. .*.*..|
| *.*..*. *. *.*..*. * *. *
600 ++--------------------------------------------------------------------+
fsmark.files_per_sec
58 ++---------------------------------------------------------------------+
*..*.*..*..*..*.*..*..*..*. .*..*..*.*..*..*.*..* *.*..*..*..*.*..*
57 ++ *. + + |
| + + |
56 ++ * |
| |
55 ++ |
| |
54 ++ |
| |
53 ++ |
| |
52 ++ |
| |
51 O+-O-O--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