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_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.
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),
cpufreq-aperf(1)
