Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751036AbWCRKsR (ORCPT ); Sat, 18 Mar 2006 05:48:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750952AbWCRKsR (ORCPT ); Sat, 18 Mar 2006 05:48:17 -0500 Received: from 213-140-2-71.ip.fastwebnet.it ([213.140.2.71]:38357 "EHLO aa004msg.fastwebnet.it") by vger.kernel.org with ESMTP id S1750737AbWCRKsQ (ORCPT ); Sat, 18 Mar 2006 05:48:16 -0500 Date: Sat, 18 Mar 2006 11:49:17 +0100 From: Mattia Dongili To: Alejandro Bonilla Cc: Jeff Garzik , linux-kernel@vger.kernel.org Subject: Re: Dual Core on Linux questions Message-ID: <20060318104916.GB4795@inferi.kami.home> Mail-Followup-To: Alejandro Bonilla , Jeff Garzik , linux-kernel@vger.kernel.org References: <20060318082434.M33432@linuxwireless.org> <441BCBAE.2020302@garzik.org> <20060318085954.M66389@linuxwireless.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060318085954.M66389@linuxwireless.org> X-Message-Flag: Cranky? Try Free Software instead! X-Operating-System: Linux 2.6.16-rc6-mm1-1 i686 X-Editor: Vim http://www.vim.org/ X-Disclaimer: Buh! User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1437 Lines: 37 On Sat, Mar 18, 2006 at 03:03:40AM -0600, Alejandro Bonilla wrote: > On Sat, 18 Mar 2006 03:58:22 -0500, Jeff Garzik wrote > > Alejandro Bonilla wrote: > > > Hi, > > > > > > I have a few questions about the PM Dual Core and how could it really work > > > with Linux. Sorry if there are new patches on LKML about any of these things: > > > > > > Could each processor or die, have it's own cpufreq scaling governor? > > > > Sure. On a laptop, if you don't need dual core power, it makes > > sense to turn off the unused core, even. > > > > Jeff > > Jeff, > > For some reason, while I was writing this email, I knew you would be the first > to reply. LOL. Anyway. Does this need new patches sent to LKML or nice > commands to make this work or any idea if stock cpufreqd should manage the > cores separatelly? I haven't got that to work on 2.6.15 so far. How flexible no, currently cpufreqd applies the governor and limits to all available cpus. Is it really possible to run the 2 cores at different speeds? I definitely need to upgrade my hardware and get one of those dual core babies to play with. Oh, and BTW patches to cpufreqd are welcome in the meantime :) ciao -- mattia :wq! - 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/