From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753721Ab1GIWsJ (ORCPT ); Sat, 9 Jul 2011 18:48:09 -0400 Received: from 173-166-109-252-newengland.hfc.comcastbusiness.net ([173.166.109.252]:41080 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751447Ab1GIWsF (ORCPT ); Sat, 9 Jul 2011 18:48:05 -0400 Date: Sat, 9 Jul 2011 18:48:03 -0400 From: Kyle McMartin To: Rik van Riel Cc: Prarit Bhargava , Linux Kernel Subject: Re: 3.0.0-rc6 ~9X system time degradation on kernbench Message-ID: <20110709224803.GC9545@bombadil.infradead.org> References: <4E175C45.1060700@redhat.com> <4E17A4BF.5050500@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4E17A4BF.5050500@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 08, 2011 at 08:45:51PM -0400, Rik van Riel wrote: > On 07/08/2011 03:36 PM, Prarit Bhargava wrote: > >Just some numbers out of kernbench. System Time& Context Switches > >climb dramatically between 2.6.38 and 3.0.0-rc6. Currently bisecting to > >find out why. .config is based on Fedora's x86_64 .config. > Er, if you're using Fedora's config, did you 'make release' first? grep DEBUG in the config and see why... ;-) > For the record, I am also seeing dramatically increased > CPU use with the 3.0-rc kernel, vs 2.6.38. > > I first attributed it to me upgrading my video card, but > Prarit is seeing slowdowns too, so it's not just me... > > -- > All rights reversed > -- > 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/ >