[How-to] Changing default CPU governor.

mymike

@hendrixxx said in [How-to] Changing default CPU governor.:

It would be cool if we could change these settings straight from setting menu.

Yeah, it would be very cool. I think reporting an issue on github will help developer as may they forgot by only reading here... if you want I can report the issue for you, if you prefer...

arubislander

I was very happy to find this post. I have been looking for ways to reduce battery usage on my Meizu Pro 5. So I was eager to try the things mentioned here.
Sadly:

$ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_governors
interactive

So only interactive is available on my kernel.

But nonetheless, thank you very much for the post. It serves to remind us that there is a real Linux kernel underneath the lovely UTouch interface.

HendriXXX

@mymike feel free to report github issue if you want. Thanks!

HendriXXX

@arubislander said in [How-to] Changing default CPU governor.:

I was very happy to find this post. I have been looking for ways to reduce battery usage on my Meizu Pro 5. So I was eager to try the things mentioned here.
Sadly:
$ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_governors
interactive
So only interactive is available on my kernel.

But nonetheless, thank you very much for the post. It serves to remind us that there is a real Linux kernel underneath the lovely UTouch interface.

Thanks! I am not developer but I like to tweak Linux everywhere possible. Just trying different things all to time..
I think it should be possible to add conservative governor in M5pro kernel just by enabling it and compile. I will check today what gov options my N4 has.

mihael

When I try echo conservative > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor it says "bash: echo: write error: Invalid argument".

I'm on turbo, vivid. Could anyone help me with this?

HendriXXX

@mihael what does "$ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_governors" says?

Do you have conservative option listed?

Lakotaubp

@arubislander Same on the mx4 interactive only if thats of any help to anyone.

Vehi_MV

Just for info.
On BQ E4.5 available governors are:
-userspace
-powersave
-hotplug (default)
-performance

I allso found a thread explaining governors on xda-developers:
https://forum.xda-developers.com/showthread.php?t=1736168

mihael

@HendriXXX I have interactive:

phablet@ubuntu-phablet:~$ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_governors
interactive 
interactive 
interactive 
interactive

I tried with powersave and I get the same result:

root@ubuntu-phablet:/home/phablet# echo powersave > /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
bash: echo: write error: Invalid argument

HendriXXX

@mihael Ok. For some reason other governors aren't compiled in to the kernel then.
I just checked my N4 and it has all governor options in kernel.