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powerstat: add page (#3334)

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Ashish Shenoy 2019-10-07 00:20:39 +00:00 committed by Lucas Gabriel Schneider
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# powerstat
> Measures the power consumption of a computer that has a battery power source or supports the RAPL interface.
> More information: <http://manpages.ubuntu.com/manpages/bionic/man8/powerstat.8.html>.
- Measure power with the default of 10 samples with an interval of 10 seconds:
`powerstat`
- Measure power with custom number of samples and interval duration:
`powerstat {{interval}} {{number_of_samples}}`
- Measure power using Intel's RAPL interface:
`powerstat -R {{interval}} {{number_of_samples}}`
- Show an histogram of the power measurements:
`powerstat -H {{interval}} {{number_of_samples}}`
- Enable all statistics gathering options:
`powerstat -a {{interval}} {{number_of_samples}}`