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Date: Thu, 20 Feb 2014 21:06:46 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Maarten Lankhorst <maarten.lankhorst@...onical.com>
Cc: LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [x86] 339a3922f6: +4.3% aim7 jobs-per-min
Hi Maarten,
We are glad to find that your commit 339a3922f68dcb7d93001f07b7e914d5cf6c066d
("decrease useless padding") increased aim disk_src performance by 4.3%:
74833276be6802b 339a3922f68dcb7d93001f07b
--------------- -------------------------
511685 ~ 0% +4.3% 533571 ~ 0% TOTAL aim7.2000.jobs-per-min
77.30 ~ 0% -9.9% 69.66 ~ 0% TOTAL time.system_time
1.95 ~ 2% +7.0% 2.09 ~ 2% TOTAL iostat.sda.rrqm/s
23.57 ~ 0% -4.1% 22.60 ~ 0% TOTAL time.elapsed_time
425 ~ 0% -3.1% 412 ~ 0% TOTAL time.percent_of_cpu_this_job_got
7.59 ~ 0% -2.9% 7.37 ~ 0% TOTAL boottime.dhcp
15.24 ~ 0% -1.9% 14.94 ~ 0% TOTAL boottime.boot
time.system_time
82 ++--------------------------------------------------------------------+
| |
80 ++ ..*.. |
| .*.. .*. .*.. |
78 ++.*..*..*..*..*..*. *.. .*. *..*. *..*.. .*..* |
*. *. *..*..*. |
76 ++ |
| |
74 ++ |
| |
72 ++ |
| |
70 O+ O O O O O O O O O O O O O O O O O O |
| O O O O
68 ++-------------------------O------------------------------------------+
time.elapsed_time
24 ++------------------------------------------------------------------+
| *.. |
23.8 ++ + *.. |
*..*.. .*.. .*..*..*.. .*..* *..*..*..*.. .*.. |
23.6 ++ *. *..*. *. *..*..*. * |
23.4 ++ |
| |
23.2 ++ |
| |
23 ++ |
| |
22.8 ++ O O O O O |
22.6 O+ O O O O O O O O O O O O O O O O O
| O |
22.4 ++------------------------------------------------------------------+
aim7.2000.jobs-per-min
540000 ++----------------------------------------------------------------+
| |
535000 O+ O O O O O O O O O O O O O |
530000 ++ O O O O O O O O O O
| |
525000 ++ |
| |
520000 ++ |
| |
515000 ++ .*. |
510000 *+.*..*..*.*..*..*..*..*..*.. .*. *.. .* |
| *..*. .*..*..*..*. *. |
505000 ++ *..*. |
| |
500000 ++----------------------------------------------------------------+
--
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