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CPU clock speed

We are able to understand the cpu current speed and adjust it to the desired speed. Here is how we can do it:

  1. Install cpufrequtils package:

    sudo apt install cpufrequtils
  2. Check the current cpu speed and cpu frequencies:

    cpufreq-info
  3. Check the available governors:

    cpufreq-info -g
tip

If you do not have userspace governor, you will not be able to set the cpu speed specifically.

  1. Change the governor to powersave:

    sudo cpufreq-set -r -g powersave
info

-r: Apply the change to all CPUs -g: Set the governor