CPU – Escala de frequências

cpupower

Verificar se o software está instalado

cpupower

Se aparecer:

-bash: cpupower: command not found

É porque é necessário instalar o cpupower:

apt install linux-cpupower

Verificar informalçao:

cpupower frequency-info

analyzing CPU 0:
driver: intel_pstate
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: Cannot determine or is not supported.
hardware limits: 1.60 GHz - 3.40 GHz
available cpufreq governors: performance powersave
current policy: frequency should be within 1.60 GHz and 3.40 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency: Unable to call hardware
current CPU frequency: 3.04 GHz (asserted by call to kernel)
boost state support:
Supported: yes
Active: yes
3200 MHz max turbo 4 active cores
3300 MHz max turbo 3 active cores
3300 MHz max turbo 2 active cores
3400 MHz max turbo 1 active cores

Em available cpufreq governors temos: performance e powersave.

Para alterar para performance, usamos o comando:

cpupower frequency-set -g performance

Ou para economia de energia:

cpupower frequency-set -g powersave

Fonte: https://wiki.debian.org/CpuFrequencyScaling