From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dave Jones <davej@redhat.com>
Subject: Re: Dynamic frequency governor
Date: Wed, 22 Oct 2003 00:19:54 +0100
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To: David Kar-Fai Tam <tamda@eecg.toronto.edu>
Cc: cpufreq@www.linux.org.uk

On Tue, Oct 21, 2003 at 06:21:37PM -0400, David Kar-Fai Tam wrote:

 > I did a quick text search on the website of the above address and I 
 > couldn't find "voltage" mentioned anywhere. That is, I couldn't find any 
 > mention of dynamic "voltage" scaling as a technique for saving power.
 > They only talk about is using the technique of "frequency" scaling to 
 > save power.
 > 
 > With DVS algorithms, we are attempting to dynamically change the voltage 
 > to save power. The fact that the frequency varies is just a side effect.

Not all implementations can scale voltage.

		Dave

-- 
 Dave Jones     http://www.codemonkey.org.uk