How to force the cpu frequency of a core?

Mohammed BEY · 11-27-2018, 04:58 AM

Hello,
I am using Intrinsyc Snapdragon 810. The OS is: Android 5.0.2.
When I try to set the cpu frequency of A57 cores to a certain value, it changes whenever I run a task on the board. I am using this command:
echo <frequency> > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
The board is rooted and the governor is "userspace".
I faced the same issue on Odroid-XU3 running on Ubuntu 16.04.
Is there any solution for this issue?
Thank you in advance.

zeebra · 11-28-2018, 09:17 AM

This is an Android question and should be asked in the Android forum:
http://www.androidquestions.org/forum.php

I would give a generic answer based on how it works in GNU/Linux, but this would not necessarily work in Android.

Mohammed BEY · 11-28-2018, 10:10 AM

Quote:

Originally Posted by zeebra

This is an Android question and should be asked in the Android forum:
http://www.androidquestions.org/forum.php

Ok, it's done. Thank you.

Quote:

Originally Posted by zeebra

I would give a generic answer based on how it works in GNU/Linux, but this would not necessarily work in Android.

Could you give the solution anyway, because I faced the same issue on Ubuntu 16.04.

BW-userx · 11-28-2018, 04:25 PM

https://software.intel.com/sites/def...-linux-pub.txt

it might still work with Android, its the same kernel yes?

zeebra · 11-28-2018, 05:58 PM

BW-userx answered just about the same I would have.