[LAU] Scaling governor goes back to 'powersave' a bit after boot up

[jonetsu]

Hello,

I have set the scaling governor to 'performance' by doing:

echo -n performance
> /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

For all 4 CPUs.  

After reboot, the scaling governor indeed shows:

% date
Sun Oct 22 08:53:49 EDT 2017

% cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
performance
performance
performance
performance

But then shortly thereafter:

% date
Sun Oct 22 08:54:06 EDT 2017

% cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
powersave
powersave
powersave
powersave

Which mechanism decides long after boot that the scaling governor
should be modified and how to tell it that 'powersave' is not what we
want ?

Cheers.