Our centos system with AMD Cool and Quite activated seems to be slower under load than without cpu scaling.
Another point is running a vmware server on such a host – will this feature work probably?
Follow these steps to turn it off, just to make sure 😉
To immediate turn off on running system:
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
should return “ondemand”
echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
to deactivate this feature
cat /proc/cpuinfo
should show the full cpu clock speed
To make these changes permanent:
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_governors
to see available options
- change
GOVERNOR= # default setting
to
GOVERNOR=performance
this makes the change persistent to next reboot
