Difference between revisions of "How to use cpufrequtils"
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| − | + | {{NOTE|See the [[How_to_make_use_of_Dynamic_Frequency_Scaling|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-info | ||
/usr/bin/cpufreq-set | /usr/bin/cpufreq-set | ||
| − | + | cpufreq-info gives general device information: | |
xaiki@gonzo:~$ cpufreq-info | xaiki@gonzo:~$ cpufreq-info | ||
cpufrequtils 0.2: cpufreq-info (C) Dominik Brodowski 2004 | cpufrequtils 0.2: cpufreq-info (C) Dominik Brodowski 2004 | ||
| Line 18: | Line 21: | ||
current CPU frequency is 700 MHz. | current CPU frequency is 700 MHz. | ||
| − | + | and cpufreq-set allows setting | |
... Never got it working ... | ... Never got it working ... | ||
Revision as of 09:35, 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 ...
