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How to set CPU frequency to highest?

How do I set the CPU frequency scaling governor for all cores at once?

  • I'd like to set the CPU frequency scaling governor for all cores at once instead of doing it individually for each core. Is there a way to do this? (I know it would be easy to echo the governor to /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor, but I'm not looking for a custom solution.)

  • Answer:

    I googled a lot and I think it's just not possible, so I added the following one-liner to my .bashrc: function setgov () { echo "$1" | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor } Now I can run something like setgov ondemand and all cores will switch to the ondemand governor.

htorque at Ask Ubuntu Visit the source

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I'm still a linux noob but don't you think cpufrequtils lets u do it by using (its not bundled in the Ubuntu OS but is there in the repository) sudo apt-get install cpufrequtils cpufreq-set -r -g performance #-r for related (all) the cores

user49449

Check out Jupiter: https://launchpad.net/~webupd8team/+archive/jupiter It's a power mgmt daemon that runs in the background and will govern your cores on-demand. http://www.webupd8.org/2010/07/jupiter-ubuntu-ppa-hardware-and-power.html

sfeole

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