[issue754] Please enable cpu frequency scaling on all hardware by default

[Andras Korn]

Andras Korn <korn-grml at elan.rulez.org> added the comment:

> Grml has it's mechanisms to load the cpufreq drivers, but activates
> it only if a laptop has been detected. Is your system a laptop?

Oh. No, no laptop; but why not save power on all computers by default? It's good
for the environment, generates less heat etc. etc.

With the ondemand governor, and for (my :) typical uses of grml, the performance
loss is negligible.

> Does running 'Start loadcpufreq' (corresponds with
> '/etc/init.d/loadcpufreq start') address your issue?

Probably; I didn't know of this script, but will try it the next time I boot
grml somewhere. So far I just modprobed and echoed away (zsh makes it so easy
even when you have many cores - echo ondemand >/sys/**/scaling_governor :).

My wish then is for cpu frequency scaling to be enabled by default when possible
(maybe except if inhibited on the kernel command line).

Andras

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messages: 2600, 2602, 2604
nosy: korn
priority: wish
status: chatting
title: Please enable cpu frequency scaling on all hardware by default

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GRML issue tracker <bts at bts.grml.org>
<http://bts.grml.org/grml/issue754>
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