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Top Forums UNIX for Advanced & Expert Users cpufreq directory not present. How to change governor for P states in such a case Post 302365698 by vishwamitra on Tuesday 27th of October 2009 08:57:54 PM
Old 10-27-2009
cpufreq directory not present. How to change governor for P states in such a case

One node in my cluster is using ondemand governor which is specified in the directory
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ..
Scaling_governor allows us to choose the governor of our choice .
But this sub-directory is absent in the other node of the cluster . How do I change the governor for Pstates in such case ?
 

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CPUPOWER-FREQUENCY-SET(1)					  cpupower Manual					 CPUPOWER-FREQUENCY-SET(1)

NAME
cpupower frequency-set - A small tool which allows to modify cpufreq settings. SYNTAX
cpupower [ -c cpu ] frequency-set [options] DESCRIPTION
cpupower frequency-set allows you to modify cpufreq settings without having to type e.g. "/sys/devices/system/cpu/cpu0/cpufreq/scal- ing_set_speed" all the time. OPTIONS
-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 REMARKS By default values are applied on all cores. How to modify single core configurations is described in the cpupower(1) manpage in the --cpu option section. The -f FREQ, --freq FREQ parameter cannot be combined with any other 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 (fre- quency 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
cpupower-frequency-info(1), cpupower(1) 0.1 CPUPOWER-FREQUENCY-SET(1)
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