Linux частота CPU на примере Ubuntu 16.04

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Для контроля частоты процессоров (CPU) есть ряд утилит.

grep MHz /proc/cpuinfo

Мониторинг с использованием утилиты watch:

watch grep MHz /proc/cpuinfo

Информация с помощью пакета cpufrequtils

# apt install cpufrequtils # cpufreq-info

* apt или apt-get
* The apt command is meant to be pleasant for end users and does not need to be backward compatible like apt-get(8).

Вывод информации:

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: 0.97 ms.
hardware limits: 1.60 GHz - 3.30 GHz
available cpufreq governors: performance, powersave current policy: frequency should be within 1.60 GHz and 3.30 GHz.
The governor "powersave" may decide which speed to use within this range.

...
analyzing CPU 3:
...

Т.е. в данном случае для процессора Intel(R) Core(TM) i3-2120 CPU @ 3.30GHz, частота может быть от 1.6 до 3.3 GHz, для каждого потока, т.е. 2 ядра и 4 потока (0,1,2,3).

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Размещено в разделе Linux

05.10.2016