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Re: cpufreq

From: Stefan Monnier <monnier(at)iro.umontreal.ca>
Date: Wed Aug 08 2007 - 11:02:21 EDT

>> i've got a asus aj8s (intel duo t7200) notebook with debian etch
>> (2.6.18-4). apparantly kernels from 17-19 dont work with cpufreq. is
>> their a fix or at least a other way of reducing the processor speed?

> The recommended approach to CPU frequency management for all modern
> Intel processors, according to 'powertop'[1], seems to be to use the
> 'ondemand' governor.

> echo "ondemand" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

> Apparently for AMD processors the "conservative" governor is slightly
> better.

Indeed. You may also want to install a kernel version 2.6.21 or newer since it seems to be significantly more power-efficient. Debian has a prebuilt 2.6.21 package available (which I use).

Stefan

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Received on Wed Aug 8 11:26:27 2007

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