cpufreq-set (1) Linux Manual Page
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_set_speed" 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 [at] brodo.de> – author
Mattia Dongili<malattia [at] gmail.com> – first autolibtoolization