Cpufreq-info (1) Linux Manual Page

NAME

cpufreq-info – Utility to retrieve cpufreq kernel information

cpufreq-info [options]

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

-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.

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.

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


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