Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754094Ab0ADVAv (ORCPT ); Mon, 4 Jan 2010 16:00:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754084Ab0ADVAt (ORCPT ); Mon, 4 Jan 2010 16:00:49 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:59856 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751883Ab0ADVAs (ORCPT ); Mon, 4 Jan 2010 16:00:48 -0500 Date: Mon, 4 Jan 2010 22:00:40 +0100 From: Pavel Machek To: "Rafael J. Wysocki" Cc: pm list , LKML , Linux PCI , ACPI Devel Maling List , Alan Stern , Jesse Barnes , Matthew Garrett , Oliver Neukum , Shaohua Li , Bjorn Helgaas , Francois Romieu , Len Brown Subject: Re: [RFC][PATCH 12/12] PM / r8169: Add simplified run-time PM support Message-ID: <20100104210040.GA20001@elf.ucw.cz> References: <200911160047.46299.rjw@sisk.pl> <201001032201.14087.rjw@sisk.pl> <20100104083108.GD1372@ucw.cz> <201001042051.08692.rjw@sisk.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201001042051.08692.rjw@sisk.pl> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1116 Lines: 30 > > > > Which means it saves 0.6W :-). Measuring power in Wh/h is "interesting". > > > > > > You can't save power, you can only save energy. Wh is just an energy unit. > > > > Of course we can save power, you just did :-). > > > > (And in some cases -- data centers, limited cooling -- you are limited > > by power, not energy. > > But still energy is what you pay for, isn't it? Energy is what you pay for, but if you eat too much power, data centre overheats and goes down. > > You are right that on notebooks, energy is more important.) > > You may require less power to run, so if that's what you mean by "saving", then > I agree. :-) Yes, that's what I meant by saving :-), and yes, they are very related. Pavel -- (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/