cpufreq-info (1) - Linux Manuals
cpufreq-info: Utility to retrieve cpufreq kernel information
NAME
cpufreq-info - Utility to retrieve cpufreq kernel information
SYNTAX
DESCRIPTION
A small tool which prints out cpufreq information helpful to developers and interested users.
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.
FILES
/sys/devices/system/cpu/cpu*/cpufreq/ /proc/cpufreq (deprecated) /proc/sys/cpu/ (deprecated)
AUTHORS
Dominik Brodowski <linux [at] brodo.de> - author Mattia Dongili<malattia [at] gmail.com> - first autolibtoolization