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* [fix sd bug] cc77bf69aa5: -100.0% dmesg.WARNING:CPU:PID:at_kernel/sched/core.c:build_sched_domain()
       [not found] <53c34cec.GHsrFwBByQ4WdFmQ%fengguang.wu@intel.com>
@ 2014-07-16  8:12 ` Aaron Lu
  0 siblings, 0 replies; only message in thread
From: Aaron Lu @ 2014-07-16  8:12 UTC (permalink / raw)
  To: lkp

[-- Attachment #1: Type: text/plain, Size: 5230 bytes --]

FYI, we noticed the below changes on

git://bee.sh.intel.com/git/ydu19/linux cc-v4.5-on-3.16-rc2
commit cc77bf69aa534146fe5aa967dff73f8756045c87 ("fix sd bug")

0a25ea50beea784  cc77bf69aa534146fe5aa967d  
---------------  -------------------------  
         1 ~ 0%    -100.0%          0 ~ 0%  ivb43/kbuild/50%
         1 ~ 0%    -100.0%          0 ~ 0%  ivb44/pigz/100%-128K
         1 ~ 0%    -100.0%          0 ~ 0%  ivb44/pigz/100%-512K
         1 ~ 0%    -100.0%          0 ~ 0%  ivb44/pigz/25%-128K
         1 ~ 0%    -100.0%          0 ~ 0%  ivb44/pigz/25%-512K
         1 ~ 0%    -100.0%          0 ~ 0%  lkp-ne02/fio-jbod/12HDD-ext4-randwrite-sync-64k
         1 ~ 0%    -100.0%          0 ~ 0%  loslunas/unixbench/fsbuffer
         1 ~ 0%    -100.0%          0 ~ 0%  loslunas/unixbench/fsdisk
         1 ~ 0%    -100.0%          0 ~ 0%  loslunas/unixbench/fstime
         1 ~ 0%    -100.0%          0 ~ 0%  nhm-white/unixbench/fsdisk
        10 ~ 0%    -100.0%          0 ~ 0%  TOTAL dmesg.WARNING:CPU:PID:at_kernel/sched/core.c:build_sched_domain()


Legend:
	~XX%    - stddev percent
	[+-]XX% - change percent


                           time.involuntary_context_switches

  1.6e+06 ++----------------------------------------------------------------+
          O  O O  O    O  O O  O  O    O  O O  O  O O  O  O O  O            |
  1.4e+06 ++         O              O                                       |
          |                                                                 |
  1.2e+06 ++                                                          .*    |
    1e+06 ++                                                       .*.  :   |
          |                                                      *.     :   |
   800000 ++                                                    +        *..*
          *..*.*..*..*.*..*.*..*..*.*..*..*.*..*..*.*..*    *..*            |
   600000 ++                                            :   :               |
   400000 ++                                            :  :                |
          |                                              : :                |
   200000 ++                                             : :                |
          |                                               :                 |
        0 ++----------------------------------------------*-----------------+


         dmesg.WARNING:CPU:PID:at_kernel/sched/core.c:build_sched_domain()

    1 ++-------------------------------------------*--*-*--*--*--*--*-*--*--*
      |                                            :                        |
      |                                            :                        |
  0.8 ++                                          :                         |
      |                                           :                         |
      |                                           :                         |
  0.6 ++                                          :                         |
      |                                           :                         |
  0.4 ++                                         :                          |
      |                                          :                          |
      |                                          :                          |
  0.2 ++                                         :                          |
      |                                         :                           |
      |                                         :                           |
    0 O+-O--O-O--O--O--O--O-O--O--O--O--O-O--O--O--O--O-O--O--O-------------+


               dmesg.IP-Config:Auto-configuration_of_network_failed

    1 ++------------------------------------------------*-------------------+
      |                                                 :                   |
      |                                                 :                   |
  0.8 ++                                                ::                  |
      |                                                : :                  |
      |                                                : :                  |
  0.6 ++                                               : :                  |
      |                                                :  :                 |
  0.4 ++                                               :  :                 |
      |                                                :  :                 |
      |                                                :  :                 |
  0.2 ++                                              :   :                 |
      |                                               :    :                |
      |                                               :    :                |
    0 O+-O--O-O--O--O--O--O-O--O--O--O--O-O--O--O--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,
Aaron

[-- Attachment #2: reproduce.ksh --]
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echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu10/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu11/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu12/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu13/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu14/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu15/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu16/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu17/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu18/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu19/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu20/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu21/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu22/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu23/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu24/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu25/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu26/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu27/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu28/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu29/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu30/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu31/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu32/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu33/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu34/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu35/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu36/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu37/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu38/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu39/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu4/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu40/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu41/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu42/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu43/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu44/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu45/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu46/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu47/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu5/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu6/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu7/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu8/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu9/cpufreq/scaling_governor


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     [not found] <53c34cec.GHsrFwBByQ4WdFmQ%fengguang.wu@intel.com>
2014-07-16  8:12 ` [fix sd bug] cc77bf69aa5: -100.0% dmesg.WARNING:CPU:PID:at_kernel/sched/core.c:build_sched_domain() Aaron Lu

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