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In order to save power and to cool down my Debian system a little bit, I installed cpufregs the other day and changed it the cpu gonever to on_demand. Well ...
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- 05-30-2010 #1
- Join Date
- Apr 2009
Debian CPU scaling not working
In order to save power and to cool down my Debian system a little bit, I installed cpufregs the other day and changed it the cpu gonever to on_demand.
Well I came back to the box today and powertop tells me that the cpu has been running at 2.66ghz (max freq) for 99/99% of the time.
Running cpufreq says this:
analyzing CPU 0: driver: p4-clockmod CPUs which need to switch frequency at the same time: 1 hardware limits: 333 MHz - 2.67 GHz available frequency steps: 333 MHz, 667 MHz, 1000 MHz, 1.33 GHz, 1.67 GHz, 2.00 GHz, 2.33 GHz, 2.67 GHz available cpufreq governors: ondemand, userspace, conservative, powersave, performance current policy: frequency should be within 2.67 GHz and 2.67 GHz. The governor "ondemand" may decide which speed to use within this range. current CPU frequency is 2.67 GHz. cpufreq stats: 333 MHz:0.01%, 667 MHz:0.00%, 1000 MHz:0.00%, 1.33 GHz:0.00%, 1.67 GHz:0.00%, 2.00 GHz:0.00%, 2.33 GHz:0.00%, 2.67 GHz:99.98% (3)
- 07-06-2010 #2
- Join Date
- Jul 2010
Have you tried to use conservative instead?