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cpufreq-info - Utility to retrieve cpufreq kernel information

Authors

       Dominik Brodowski <linux@brodo.de> - author
       Mattia Dongili<malattia@gmail.com> - first autolibtoolization

Description

       A small tool which prints out cpufreq information helpful to developers and interested users.

Files

/sys/devices/system/cpu/cpu*/cpufreq//proc/cpufreq (deprecated)
       /proc/sys/cpu/ (deprecated)

Name

       cpufreq-info - Utility to retrieve cpufreq kernel information

Options

-c--cpu <CPU>
               <CPU> number which information shall be determined about.

       -e--debug
              Prints out debug information.

       -f--freq
              Get frequency the CPU currently runs at, according to the cpufreq core.

       -w--hwfreq
              Get frequency the CPU currently runs at, by reading it from hardware (only available to root).

       -l--hwlimits
              Determine the minimum and maximum CPU frequency allowed.

       -d--driver
              Determines the used cpufreq kernel driver.

       -p--policy
              Gets the currently used cpufreq policy.

       -g--governors
              Determines available cpufreq governors.

       -a--related-cpus
              Determines which CPUs run at the same hardware frequency.

       -a--affected-cpus
              Determines which CPUs need to have their frequency coordinated by software.

       -s--stats
              Shows cpufreq statistics if available.

       -y--latency
              Determines the maximum latency on CPU frequency changes.

       -o--proc
              Prints  out  information  like  provided  by  the  /proc/cpufreq  interface in 2.4. and early 2.6.
              kernels.

       -m--human
              human-readable output for the -f, -w, -s and -y parameters.

       -h--help
              Prints out the help screen.

Remarks

       You can't specify more than one of the output specific options -o -e -a -g -p -d -l -w -f -y.

       You also can't specify the -o option combined with the -c option.

See Also

cpufreq-set(1), cpufreq-aperf(1)

Mattia Dongili                                         0.1                                       cpufreq-info(1)

Syntax

       cpufreq-info [options]

See Also