linux-kernel - Re: Liunx power consumption on laptops -- Enormous progress in the last few months

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Message-ID: <468E6F0C.1090601@redhat.com>
Date:	Fri, 06 Jul 2007 12:34:20 -0400
From:	Chuck Ebbert <cebbert@...hat.com>
To:	Arjan van de Ven <arjan@...ux.intel.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Liunx power consumption on laptops -- Enormous progress in the
 last few months

On 07/05/2007 03:58 PM, Arjan van de Ven wrote:
> While it's hard to show "one size fits all" number/percentage, we took a
> bog standard Lenovo T61 laptop (no vendor preference, they just were the
> first one to deliver a model with the latest Intel chipset to our cubes)
> and measured the effect. The baseline we used was a 32 bit Fedora 7
> installation; note that this already has the tickless kernel, but is
> lacking several of the key bugfixes that came afterwards.
> 
> We've put our measurements in a graph at
> 
> http://ww.linuxpowertop.org/results.php
> 
> With kernel fixes and features, the power consumption of this laptop
> went from 21.06 Watts to 18.25 Watts; with 2 additional userspace fixes
> the power consumption ended up at 15.5 Watts.
> 

Where is the ondemand-fix.patch? I can't find any link to it.

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