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Date: Tue, 22 Mar 2016 10:59:24 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Rik van Riel <riel@...hat.com>
Cc: 0day robot <fengguang.wu@...el.com>,
LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [lkp] [cpuidle] b67bb65b9d: No primary result change, -33.1%
turbostat.%Busy
FYI, we noticed that turbostat.%Busy -33.1% change with your commit.
https://github.com/0day-ci/linux Rik-van-Riel/cpuidle-use-high-confidence-factors-only-when-considering-polling/20160317-001521
commit b67bb65b9de2d3c070073028aeb30cca6c6790a7 ("cpuidle: use high confidence factors only when considering polling")
=========================================================================================
compiler/cpufreq_governor/kconfig/rootfs/runtime/size/tbox_group/test/testcase:
gcc-4.9/performance/x86_64-rhel/debian-x86_64-2015-02-07.cgz/300s/1T/lkp-hsx04/msync-mt/vm-scalability
commit:
v4.5-rc7
b67bb65b9de2d3c070073028aeb30cca6c6790a7
v4.5-rc7 b67bb65b9de2d3c070073028ae
---------------- --------------------------
%stddev %change %stddev
\ | \
1383 ± 16% +30.2% 1801 ± 10% meminfo.Writeback
341.25 ± 17% +30.9% 446.75 ± 12% proc-vmstat.nr_writeback
1190 ± 14% +59.8% 1902 ± 31% numa-vmstat.node1.nr_anon_pages
79284 ± 17% -65.8% 27126 ± 56% numa-vmstat.node3.nr_inactive_anon
0.00 ± -1% +Inf% 20587 ±147% latency_stats.max.bt_get.blk_mq_get_tag.__blk_mq_alloc_request.blk_mq_map_request.blk_sq_make_request.generic_make_request.submit_bio.xfs_submit_ioend_bio.xfs_submit_ioend.xfs_vm_writepage.__writepage.write_cache_pages
0.00 ± -1% +Inf% 2597215 ±130% latency_stats.sum.bt_get.blk_mq_get_tag.__blk_mq_alloc_request.blk_mq_map_request.blk_sq_make_request.generic_make_request.submit_bio.xfs_submit_ioend_bio.xfs_submit_ioend.xfs_vm_writepage.__writepage.write_cache_pages
311599 ± 52% +3095.5% 9957231 ±167% latency_stats.sum.wait_on_page_bit.__filemap_fdatawait_range.filemap_fdatawait_range.filemap_write_and_wait_range.xfs_file_fsync.vfs_fsync_range.SyS_msync.entry_SYSCALL_64_fastpath
3622 ± 38% -84.8% 551.50 ± 74% numa-meminfo.node0.AnonHugePages
4754 ± 14% +60.2% 7615 ± 31% numa-meminfo.node1.AnonPages
317153 ± 17% -65.8% 108519 ± 56% numa-meminfo.node3.Inactive(anon)
4.011e+09 ± 2% +234.2% 1.341e+10 ± 0% cpuidle.C1-HSW.time
20612300 ± 3% +256.1% 73396067 ± 0% cpuidle.C1-HSW.usage
8.54e+09 ± 0% -98.9% 94559307 ± 67% cpuidle.POLL.time
27143032 ± 0% -98.5% 397406 ± 2% cpuidle.POLL.usage
19.34 ± 0% -33.1% 12.94 ± 0% turbostat.%Busy
559.50 ± 0% -33.1% 374.25 ± 0% turbostat.Avg_MHz
57.66 ± 0% +12.3% 64.75 ± 0% turbostat.CPU%c1
372.25 ± 0% -4.7% 354.77 ± 0% turbostat.PkgWatt
lkp-hsx04: Brickland Haswell-EX
Memory: 512G
turbostat.Avg_MHz
580 ++--------------------------------------------------------------------+
560 *+.*..*...*..*..*..*..*..*...*..*..*..*..*...*..*..*..*..*..*...*..*..*
| |
540 ++ |
520 ++ |
500 ++ |
480 ++ |
| |
460 ++ |
440 ++ |
420 ++ |
400 ++ |
| |
380 O+ O O O O O O O O O O O O O O O O O O O O |
360 ++--------------------------------------------------------------------+
turbostat._Busy
20 ++---------------------------------------------------------------------+
*..*..*...*..*..*..*...*..*..*..*...*..*..*..*..*...*..*..*..*...*..*..*
19 ++ |
18 ++ |
| |
17 ++ |
| |
16 ++ |
| |
15 ++ |
14 ++ |
| |
13 O+ O O O O O O O O O O O O O O O O O O O O |
| |
12 ++---------------------------------------------------------------------+
turbostat.CPU_c1
66 ++---------------------------------------------------------------------+
O O |
65 ++ O O O O O O O O O O O O O O O O O O O |
64 ++ |
| |
63 ++ |
62 ++ |
| |
61 ++ |
60 ++ |
| |
59 ++ |
58 ++ |
*..*..*...*..*..*..*...*..*..*..*...*..*..*..*..*...*..*..*..*...*..*..*
57 ++---------------------------------------------------------------------+
turbostat.PkgWatt
374 ++--------------------------------------------------------------------+
372 *+.*.. .*..*.. ..*..*..*.. .*..*...*.. .*
| *...*..*..*..*..*..*...*. *..*. *. *. |
370 ++ |
368 ++ |
| |
366 ++ |
364 ++ |
362 ++ |
| |
360 ++ |
358 ++ |
O |
356 ++ O O O O O O O O O O O O O O O |
354 ++------------------------------O--------O---------O--O---------O-----+
[*] bisect-good sample
[O] bisect-bad sample
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
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 Ye
View attachment "job.yaml" of type "text/plain" (3535 bytes)
View attachment "reproduce" of type "text/plain" (17508 bytes)
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