NAME¶

cpufreq-set - A small tool which allows to modify cpufreq settings.

SYNTAX¶

cpufreq-set [options]

DESCRIPTION¶

cpufreq-set allows you to modify cpufreq settings without having to type e.g. "/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed" all the time.

OPTIONS¶

-c --cpu <CPU>

number of CPU where cpufreq settings shall be modified.

-d --min <FREQ>

new minimum CPU frequency the governor may select.

-u --max <FREQ>

new maximum CPU frequency the governor may select.

-g --governor <GOV>

new cpufreq governor.

-f --freq <FREQ>

specific frequency to be set. Requires userspace governor to be available and loaded.

-r --related

modify all hardware-related CPUs at the same time

-h --help

Prints out the help screen.

REMARKS¶

Omitting the -c or --cpu argument is equivalent to setting it to zero.

The -f FREQ, --freq FREQ parameter cannot be combined with any other parameter except the -c CPU, --cpu CPU parameter.

FREQuencies can be passed in Hz, kHz (default), MHz, GHz, or THz by postfixing the value with the wanted unit name, without any space (frequency in kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000).

On Linux kernels up to 2.6.29, the -r or --related parameter is ignored.

FILES¶

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

AUTHORS¶

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

SEE ALSO¶

cpufreq-info(1)