Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754854Ab0GIDEg (ORCPT ); Thu, 8 Jul 2010 23:04:36 -0400 Received: from casper.infradead.org ([85.118.1.10]:35427 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750985Ab0GIDEf (ORCPT ); Thu, 8 Jul 2010 23:04:35 -0400 Date: Thu, 8 Jul 2010 20:08:21 -0700 From: Arjan van de Ven To: Peter Zijlstra Cc: Mike Galbraith , Norbert Preining , linux-kernel@vger.kernel.org, Ingo Molnar , akpm , tglx Subject: Re: high power consumption in recent kernels Message-ID: <20100708200821.35173ef8@infradead.org> In-Reply-To: <1278621854.1900.188.camel@laptop> References: <20100706164539.GA14783@gamma.logic.tuwien.ac.at> <1278579992.1900.17.camel@laptop> <20100708045711.398d4e26@infradead.org> <1278590303.1900.91.camel@laptop> <20100708120421.GF20841@gamma.logic.tuwien.ac.at> <1278591779.1900.97.camel@laptop> <20100708124627.GA7754@gamma.logic.tuwien.ac.at> <1278595426.1900.130.camel@laptop> <1278604779.1900.157.camel@laptop> <1278618040.7498.21.camel@marge.simson.net> <1278621854.1900.188.camel@laptop> Organization: Intel X-Mailer: Claws Mail 3.7.6 (GTK+ 2.20.1; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1093 Lines: 28 On Thu, 08 Jul 2010 22:44:14 +0200 Peter Zijlstra wrote: > On Thu, 2010-07-08 at 21:40 +0200, Mike Galbraith wrote: > > > Mike could you re-run your netperf tests that showed the 10% > > > throughput gain? Hopefully the fixed governor will yield the same > > > result and we can kill off this ratelimit thing. > > > > The gain is (well was last time I checked), but as noted, I'd just > > call it a misguided optimization and be done with it. > > It would still be good to know what your machine does, if you can > still see a difference there might still be something to look at. > yeah and if you give me a reason / workload to improve the idle governor even more..... -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org -- 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/