From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755273AbZBGUsl (ORCPT ); Sat, 7 Feb 2009 15:48:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753882AbZBGUsY (ORCPT ); Sat, 7 Feb 2009 15:48:24 -0500 Received: from mail.gmx.net ([213.165.64.20]:53735 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1753571AbZBGUsX convert rfc822-to-8bit (ORCPT ); Sat, 7 Feb 2009 15:48:23 -0500 X-Authenticated: #5108953 X-Provags-ID: V01U2FsdGVkX18Dm2c+OMwDV5IcddywQs2podaqkDgczEMyTUUK/T 0rkeJTvvl8PhGG From: Toralf =?utf-8?q?F=C3=B6rster?= To: Arjan van de Ven Subject: Re: cpu frequency maximized even for a niced job w/ v2.6.29-rc3 Date: Sat, 7 Feb 2009 21:48:19 +0100 User-Agent: KMail/1.9.10 Cc: linux-kernel@vger.kernel.org References: <200902071130.10463.toralf.foerster@gmx.de> <20090207115545.724911be@infradead.org> In-Reply-To: <20090207115545.724911be@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Content-Disposition: inline Message-Id: <200902072148.19953.toralf.foerster@gmx.de> X-Y-GMX-Trusted: 0 X-FuHaFi: 0.57 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org At Saturday 07 February 2009 20:55:45 Arjan van de Ven wrote : > On Sat, 7 Feb 2009 11:30:10 +0100 > > Toralf Förster wrote: > > I'm wondering, why my ThinkPad T41 goes from 600 MHz to 1.7 GHz if I > > run this job : > > > > $> while [[ true ]]; do nice -3 factor 273244676154386297; done > > > > under v2.6.29-rc3-562-geda58a8. > > > > Former version stays at min frequency (600 MHz). > > The kernel has defaulted to this for I think a really long time; > maybe your "former version" was a distribution kernel with patches? > > Either way this is a simple tunable in sysfs; and to be honest, > going to the full speed is very often the right behavior so as a > default it is quite sane... Oh - maybe I for got to mention that I set ./ondemand/ignore_nice_load to "1" -- MfG/Sincerely Toralf Förster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3