Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756613AbYGIU4c (ORCPT ); Wed, 9 Jul 2008 16:56:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755581AbYGIUzi (ORCPT ); Wed, 9 Jul 2008 16:55:38 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:1525 "EHLO spitz.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754914AbYGIUzh (ORCPT ); Wed, 9 Jul 2008 16:55:37 -0400 Date: Wed, 9 Jul 2008 22:32:17 +0200 From: Pavel Machek To: Felipe Balbi Cc: Arjan van de Ven , Kernel development list , linux-acpi@vger.kernel.org Subject: Re: Battery life difference Message-ID: <20080709203216.GF11006@ucw.cz> References: <31e679430807050617u3fc706fasee9bb43a151c501f@mail.gmail.com> <20080705082352.4b6be669@infradead.org> <31e679430807050844r30ff74fby7e15641573b42d82@mail.gmail.com> <20080705085432.2f9b2964@infradead.org> <31e679430807051041w6dd9b917xc51f31f66fbd65d3@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <31e679430807051041w6dd9b917xc51f31f66fbd65d3@mail.gmail.com> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1551 Lines: 41 On Sat 2008-07-05 20:41:07, Felipe Balbi wrote: > Hi, > > On Sat, Jul 5, 2008 at 6:54 PM, Arjan van de Ven wrote: > > you may also need to toggle your bios to enable AHCI btw > > > >> > >> > Also take a look at > >> > http://kerneltrap.org/mailarchive/linux-kernel/2008/5/8/1771024 > >> > because these patches save like 0.75W in our lab. > >> > >> cool, is it merged upstream ? > >> I'll build current git kernel and reply again with new linux results. > >> It could be that ubuntu 2.6.24 is broken somehow... > >> > >> > To be honest, I'm surprised at your results; in our testing (with a > >> > different distro though) we don't see such a difference and Linux is > >> > doing rather well. > >> > >> can you get powertop results in a 2.6.24 distro kernel and current git > >> kernel ? > > > > most of my measurement machines are in the office ;( > > > > Anyway, also make sure you use the 0.11 version of powertop; we added > > some newer stuff into that version... > > Cool, now I'm using current linux 2.6.26-rc8 from git > b8a0b6ccf2ba2519ace65d782b41ee91bf3c3778 > > Now I'm reaching 9.8w consumption :-) Cool... how low can Windows go? -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/