linux-kernel - Re: Question about cpufreq governors

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Message-ID: <20070707100408.GA19299@DervishD>
Date:	Sat, 7 Jul 2007 12:04:08 +0200
From:	DervishD <lkml@...vishd.net>
To:	Jan Engelhardt <jengelh@...putergmbh.de>
Cc:	Linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Question about cpufreq governors

    Hi Jan :)

 * Jan Engelhardt <jengelh@...putergmbh.de> dixit:
> On Jul 6 2007 22:50, DervishD wrote:
> >
> >    What I want to know is if I can choose "ondemand" governor instead
> >of the recommended for AMD64, namely the "conservative" governor, since
> >I will be switching between those two frequencies. I haven't found any
> >information about my CPU regarding latency when switching between
> >frequencies, so I don't know if I will be gaining anything using the
> >"conservative" governor.
> >
> >    Which governor is better suited for a CPU with only two fid's,
> >"ondemand" or "conservative"?
> 
> Depends on what you want. ondemand instantly switches when there is
> something/nothing to do, while conservative uses a threshold (modeled upon
> latency).

    Yes, I know the difference, I'm afraid I didn't ask my question
correctly O:). What I meant is that, since I don't know if my CPU has
latency problems when switching from "slow" freq to "fast" freq, if I
can use "ondemand" safely or if I must use "conservative" due to latency
problems with my CPU.

    Thanks for your answer :)

    Raúl Núñez de Arenas Coronado

-- 
Linux Registered User 88736 | http://www.dervishd.net
It's my PC and I'll cry if I want to... RAmen!
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