Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 3 Feb 2003 13:56:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 3 Feb 2003 13:56:08 -0500 Received: from noodles.codemonkey.org.uk ([213.152.47.19]:60048 "EHLO noodles.internal") by vger.kernel.org with ESMTP id ; Mon, 3 Feb 2003 13:56:07 -0500 Date: Mon, 3 Feb 2003 19:02:05 +0000 From: Dave Jones To: Valdis.Kletnieks@vt.edu Cc: John Bradford , Seamus , linux-kernel@vger.kernel.org Subject: Re: CPU throttling?? Message-ID: <20030203190205.GA15256@codemonkey.org.uk> Mail-Followup-To: Dave Jones , Valdis.Kletnieks@vt.edu, John Bradford , Seamus , linux-kernel@vger.kernel.org References: <200302031713.h13HD2K8000181@darkstar.example.net> <200302031857.h13IvHa0025735@turing-police.cc.vt.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200302031857.h13IvHa0025735@turing-police.cc.vt.edu> User-Agent: Mutt/1.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 714 Lines: 18 On Mon, Feb 03, 2003 at 01:57:17PM -0500, Valdis.Kletnieks@vt.edu wrote: > It's conceivable that a CPU halted at 1.2Gz takes less power than one > at 1.6Gz - anybody have any actual data on this? Alternately phrased, > does CPU throttling save power over and above what the halt does? Given that most decent implementations scale voltage as well as frequency, yes, a lower speed will save more power. Dave -- | Dave Jones. http://www.codemonkey.org.uk - 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/