Difference between revisions of "How to use cpufrequtils"

From ThinkWiki
Jump to: navigation, search
Line 3: Line 3:
  
 
This package mainly has 2 programs:
 
This package mainly has 2 programs:
/usr/bin/cpufreq-info
+
:{{path|/usr/bin/cpufreq-info}}
/usr/bin/cpufreq-set
+
:{{path|/usr/bin/cpufreq-set}}
  
 
cpufreq-info gives general device information:
 
cpufreq-info gives general device information:

Revision as of 10:19, 20 July 2005

NOTE!
See the Dynamic Frequency Scaling HOWTO on how to avoid using cpu frequency scaling daemons by using the kernel builtin ondemand governor.


This package mainly has 2 programs:

/usr/bin/cpufreq-info
/usr/bin/cpufreq-set

cpufreq-info gives general device information:

xaiki@gonzo:~$ cpufreq-info
cpufrequtils 0.2: cpufreq-info (C) Dominik Brodowski 2004
Report errors and bugs to linux@brodo.de, please.
analyzing CPU 0:
  driver: speedstep-smi
  CPUs which need to switch frequency at the same time: 0
  hardware limits: 500 MHz - 700 MHz
  available frequency steps: 700 MHz, 500 MHz
  available cpufreq governors: userspace, performance
  current policy: frequency should be within 500 MHz and 700 MHz.
                  The governor "userspace" may decide which speed to use
                  within this range.
  current CPU frequency is 700 MHz.

and cpufreq-set allows setting ... Never got it working ...