Changing CPU governor of a rooted android device

Question

I'm developing an application which changes the CPU Governor of the rooted device. I know that I can get the current governor in "sys/devices/system/cpu/cpu0/cpufreq/scaling_governor", but how do I change it?

This might be better asked on http://android.stackexchange.com/ . — fadden, Jul 14 '15 at 15:47

score 6 · Accepted Answer · edited Dec 06 '22 at 14:39

6

First, from the directory you are, do:

# cat scaling_available_governors

Then you will get the output something like this:

ondemand userspace powersave performance

These are the governors your kernel supports. Now you can force the kernel to use one of them by running:

# echo "powersave" > scaling_governor

You will need root for this to work.

edited Dec 06 '22 at 14:39

Steel Brain

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answered Jul 15 '15 at 13:03

skoperst

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Does this change persist reboots? If not, are you aware of any that does? – Steel Brain Apr 24 '18 at 19:27
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@SteelBrain these changes are not persistent – france1 Nov 05 '22 at 16:07

Changing CPU governor of a rooted android device

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