linux-kernel - Re: Power Saving

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Message-ID: <20071120005443.GB9243@redhat.com>
Date:	Mon, 19 Nov 2007 19:54:43 -0500
From:	Dave Jones <davej@...hat.com>
To:	Stephen Clark <Stephen.Clark@...lark.us>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Power Saving

On Mon, Nov 19, 2007 at 07:41:31PM -0500, Stephen Clark wrote:
 > Hello List,
 > 
 > I am trying to get throttling to work on the following processor

I think by throttling, you actually mean changing frequency/voltage ?
(throttling is something else, where the CPU skips every n cycles,
 which doesn't actually save any power)

 > with linux 2.6.17-1.2142_FC4 with no luck.

wow. that's a prehistoric kernel.

 > AMD Athlon(tm) XP 1700+

you lose.  Only the mobile athlons supported scaling their speed.
And even then, only if the BIOS supported it with the correct tables.
(Typically this means, "only laptops").

	Dave

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