From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763492AbXGFQeh (ORCPT ); Fri, 6 Jul 2007 12:34:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754239AbXGFQe2 (ORCPT ); Fri, 6 Jul 2007 12:34:28 -0400 Received: from mx1.redhat.com ([66.187.233.31]:36550 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753891AbXGFQe1 (ORCPT ); Fri, 6 Jul 2007 12:34:27 -0400 Message-ID: <468E6F0C.1090601@redhat.com> Date: Fri, 06 Jul 2007 12:34:20 -0400 From: Chuck Ebbert Organization: Red Hat User-Agent: Thunderbird 1.5.0.12 (X11/20070530) MIME-Version: 1.0 To: Arjan van de Ven CC: linux-kernel@vger.kernel.org Subject: Re: Liunx power consumption on laptops -- Enormous progress in the last few months References: <468D4D82.8030009@linux.intel.com> In-Reply-To: <468D4D82.8030009@linux.intel.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org 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.