linux-kernel - Re: cpufreq default governor

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Date:	Wed, 25 Apr 2007 16:25:29 -0400
From:	"Lee Revell" <rlrevell@...-job.com>
To:	"William Heimbigner" <icxcnika@....tar.cc>
Cc:	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: cpufreq default governor

On 4/24/07, William Heimbigner <icxcnika@....tar.cc> wrote:
> Is it actually "not working" though, even at the hardware level? To my
> knowledge those noises are normal, and aren't even signs of a harware
> problem. I believe it is the natural result of changing frequencies at any
> time. If you change frequencies, especially in the low end of available
> frequencies, you should hear a very brief noise. A governor such as
> ondemand, which is rapidly switching the frequency from say, 333 MHz to
> 2.66 GHz, is likely to make this much more noticable.

It's only normal if your vendor used cheap noisy components.  This
would be a fatal flaw for a system that was intended for audio
production for example.

Lee
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