From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752258Ab1GIAp7 (ORCPT ); Fri, 8 Jul 2011 20:45:59 -0400 Received: from mx1.redhat.com ([209.132.183.28]:4727 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750937Ab1GIAp5 (ORCPT ); Fri, 8 Jul 2011 20:45:57 -0400 Message-ID: <4E17A4BF.5050500@redhat.com> Date: Fri, 08 Jul 2011 20:45:51 -0400 From: Rik van Riel User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110428 Fedora/3.1.10-1.fc15 Lightning/1.0b3pre Thunderbird/3.1.10 MIME-Version: 1.0 To: Prarit Bhargava CC: Linux Kernel Subject: Re: 3.0.0-rc6 ~9X system time degradation on kernbench References: <4E175C45.1060700@redhat.com> In-Reply-To: <4E175C45.1060700@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. 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