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Subject[kernel/watchdog.c] ed235875e2c: -14.2% will-it-scale.scalability
Hi Aaron,

FYI, we noticed the below changes on

commit ed235875e2ca983197831337a986f0517074e1a0 ("kernel/watchdog.c: print traces for all cpus on lockup detection")

test case: lkp-snb01/will-it-scale/signal1

f3aca3d09525f87 ed235875e2ca983197831337a
--------------- -------------------------
0.12 ~ 0% -14.2% 0.10 ~ 0% TOTAL will-it-scale.scalability
506146 ~ 0% -4.4% 484004 ~ 0% TOTAL will-it-scale.per_process_ops
12193 ~ 4% +12.6% 13726 ~ 6% TOTAL slabinfo.kmalloc-256.active_objs
12921 ~ 4% +12.3% 14516 ~ 5% TOTAL slabinfo.kmalloc-256.num_objs
123094 ~ 3% -6.5% 115117 ~ 3% TOTAL meminfo.Committed_AS

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


will-it-scale.per_process_ops

515000 ++-----------------------------------------------------------------+
| .*.*.*.*. .* |
510000 *+* *.*.* + .*. *. |
505000 ++ * *.*.*.*. .* .*.*.*. .*.*.*. + *.*.*.*.*.*
| * * * *.* |
500000 ++ |
| |
495000 ++ |
| |
490000 ++ |
485000 ++ O O O O O O |
| O O O O O O O O O O |
480000 O+O O O O O |
| |
475000 ++-----------------------------------------------------------------+


[*] 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,
Jet

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/cpu4/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
./runtest.py signal1 25 1 8 16 24 32

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