From owner-freebsd-questions@FreeBSD.ORG Wed Dec 17 09:11:38 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B2316106564A for ; Wed, 17 Dec 2008 09:11:38 +0000 (UTC) (envelope-from fbsd.questions@rachie.is-a-geek.net) Received: from mail.rachie.is-a-geek.net (rachie.is-a-geek.net [66.230.99.27]) by mx1.freebsd.org (Postfix) with ESMTP id 82A028FC1C for ; Wed, 17 Dec 2008 09:11:38 +0000 (UTC) (envelope-from fbsd.questions@rachie.is-a-geek.net) Received: from localhost (mail.rachie.is-a-geek.net [192.168.2.101]) by mail.rachie.is-a-geek.net (Postfix) with ESMTP id 75078AFBC02; Wed, 17 Dec 2008 00:11:37 -0900 (AKST) From: Mel To: freebsd-questions@freebsd.org Date: Wed, 17 Dec 2008 10:11:35 +0100 User-Agent: KMail/1.9.7 References: <20081215133957.4ef356ec@gom.home> <20081215231835.Y56482@wojtek.tensor.gdynia.pl> <20081215152317.50e78aa4@gom.home> In-Reply-To: <20081215152317.50e78aa4@gom.home> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200812171011.36220.fbsd.questions@rachie.is-a-geek.net> Cc: prad Subject: Re: power management X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Dec 2008 09:11:38 -0000 On Tuesday 16 December 2008 00:23:17 prad wrote: > On Mon, 15 Dec 2008 23:20:51 +0100 (CET) > > Wojciech Puchar wrote: > > IMHO it depends on hardware > > ya that makes sense at least from reading about different cpu state > descriptions here: > Everything You Need to Know About the CPU C-States Power Saving Modes > http://www.hardwaresecrets.com/article/611 > > where they talk about how different cpu's deal with things differently. > so since the os software can only use these features, possibly some > have optimized for some hardware, but possibly not for others. If you're interested in technical details, there's a November thread on -mobile that covers quite some ground: http://lists.freebsd.org/pipermail/freebsd-mobile/2008-November/011188.html -- Mel Problem with today's modular software: they start with the modules and never get to the software part.