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i.MX6 Linux BSP CPU frequency governor.

Question asked by Satoshi Shimoda on Sep 14, 2015
Latest reply on Sep 15, 2015 by igorpadykov

Hi community,

 

I have a question about i.MX6 Linux BSP (Yocto BSP).

I want to know how the each governor of CPUFREQ driver controls CPU frequency.

My current understanding is as below.

Would you check my understanding and let me know how governors control when conservative or ondemand mode?

 

conservative : ?

ondemand     : ?

userspace    : Set frequency to the value written in /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed (?)

powersave    : Keep min frequency (?)

interactive  : Enable DVFS (default?)

performance  : Keep max frequency

 

 

Best Regards,

Satoshi Shimoda

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