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cpupower

Tools regarding CPU power and tuning options. More information: https://manned.org/cpupower.

List CPUs:

sudo cpupower --cpu {{all}} info

Print information about all cores:

sudo cpupower --cpu {{all}} info

Set all CPUs to a power-saving frequency governor:

sudo cpupower --cpu {{all}} frequency-set --governor {{powersave}}

Print CPU 0's available frequency [g]overnors:

sudo cpupower --cpu {{0}} frequency-info g | grep "analyzing\|governors"

Print CPU 4's frequency from the hardware, in a human-readable format:

sudo cpupower --cpu {{4}} frequency-info --hwfreq --human