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Message-ID: <20160322025043.GA19091@yexl-desktop>
Date: Tue, 22 Mar 2016 10:50:43 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Daniel Vetter <daniel.vetter@...ll.ch>
Cc: Jani Nikula <jani.nikula@...el.com>,
Sonika Jindal <sonika.jindal@...el.com>,
"Wang, Gary C" <gary.c.wang@...el.com>,
LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [lkp] [drm/i915] 97f9010af0: No primary result change, -36.2%
piglit.time.percent_of_cpu_this_job_got
FYI, we noticed that piglit.time.percent_of_cpu_this_job_got -36.2% change with your commit.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715 ("drm/i915: mdelay(10) considered harmful")
=========================================================================================
compiler/group/kconfig/rootfs/tbox_group/testcase:
gcc-4.9/igt-037/x86_64-rhel/debian-x86_64-2015-02-07.cgz/snb-drag/piglit
commit:
57a2af6bbc7a4f1b145cc216c34476402836f0b8
97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715
57a2af6bbc7a4f1b 97f9010af05c15e0b7e6b4ef6f
---------------- --------------------------
fail:runs %reproduction fail:runs
%stddev %change %stddev
\ | \
69.00 ± 0% -36.2% 44.00 ± 0% piglit.time.percent_of_cpu_this_job_got
44.77 ± 0% -36.0% 28.66 ± 0% piglit.time.system_time
38337 ± 0% +4.1% 39904 ± 0% piglit.time.voluntary_context_switches
69.00 ± 0% -36.2% 44.00 ± 0% time.percent_of_cpu_this_job_got
44.77 ± 0% -36.0% 28.66 ± 0% time.system_time
snb-drag: Sandy Bridge
Memory: 6G
piglit.time.system_time
46 ++---------------------------------------------------------------------+
*..*..*..*..*..*..*..*..*..*..*..*..*.*..*..*..*..*..*..*..*..*..* |
44 ++ |
42 ++ |
| |
40 ++ |
38 ++ |
| |
36 ++ |
34 ++ |
| |
32 ++ |
30 ++ |
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
28 ++---------------------------------------------------------------------+
piglit.time.percent_of_cpu_this_job_got
70 *+----*--*--*--*--*--*--*--*--*--*--*-*--*--*--*--*--*--*--*--*--*-----+
| .. |
65 ++ * |
60 ++ |
| |
55 ++ |
50 ++ |
| |
45 ++ O O O O
40 ++ |
| O O O O O O O O O O |
35 ++ |
30 ++ |
| |
25 O+-O--O--O--O--O--O--O--O--O--O----------------------------------------+
piglit.time.voluntary_context_switches
46000 ++------------------------------------------------------------------+
O O O O O O O O O O O |
45000 ++ |
44000 ++ |
| |
43000 ++ |
| |
42000 ++ |
| |
41000 ++ O O O O O O O O O O |
40000 ++ |
| O O O O
39000 ++ |
*..*..*..*.*..*..*..*..*..*.*..*..*..*..*..*.*..*..*..*..*..*.* |
38000 ++------------------------------------------------------------------+
[*] 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" (3343 bytes)
View attachment "reproduce" of type "text/plain" (183 bytes)
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