cpufreq-aperf man page on ElementaryOS

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cpufreq-aperf(1)					      cpufreq-aperf(1)

       cpufreq-aperf - Calculates the average frequency over a time period

       cpufreq-aperf [options]

       On latest processors exist two MSR registers refered to as:
	 - MPERF increasing with maxium (P0) frequency in C0
	 - APERF increasing with current/actual frequency in C0

       From  this  information the average frequency over a time period can be
       calculated and this is what this tool does.

       A nice falloff feature beside the average frequency is the time a  pro‐
       cessor core remained in C0 (working state) or any CX (sleep state) pro‐
       cessor sleep state during the measured time  period.  This  information
       can be determined from the fact that MPERF only increases in C0 state.

       -c --cpu <CPU>
	       The <CPU> core to measure - default all cores.

       -i --interval <seconds>
	      Refresh rate - default 1 second.

       -o --once
	      Exit after one interval.

       -h --help
	      Prints the available options.

       The msr driver must be loaded for this command to work.

       Thomas Renninger <trenn@suse.de>

       cpufreq-set(1), cpufreq-info(1)

Mattia Dongili			      0.1		      cpufreq-aperf(1)

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