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tldr/pages/linux/cpufreq-aperf.md
Max Xu 7c9e7aafe1 cpufreq-aperf: add page (#1865)
2018-01-08 17:32:34 +05:30

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cpufreq-aperf

Calculate the average CPU frequency over a time period. Requires root privileges.

  • Start calculating, defaulting to all CPU cores and 1 second refresh interval:

sudo cpufreq-aperf

  • Start calculating for CPU 1 only:

sudo cpufreq-aperf -c {{1}}

  • Start calculating with a 3 seconds refresh interval for all CPU cores:

sudo cpufreq-aperf -i {{3}}

  • Calculate only once:

sudo cpufreq-aperf -o