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cpufreq-set

Langue: en

Version: 370622 (fedora - 01/12/10)

Section: 1 (Commandes utilisateur)

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.

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)

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