Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753851AbXJAL5b (ORCPT ); Mon, 1 Oct 2007 07:57:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751710AbXJAL5X (ORCPT ); Mon, 1 Oct 2007 07:57:23 -0400 Received: from one.firstfloor.org ([213.235.205.2]:37930 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750912AbXJAL5X (ORCPT ); Mon, 1 Oct 2007 07:57:23 -0400 Date: Mon, 1 Oct 2007 13:57:21 +0200 From: Andi Kleen To: Denys Cc: Andi Kleen , linux-kernel@vger.kernel.org Subject: Re: 2.6.21 -> 2.6.22 & 2.6.23-rc8 performance regression Message-ID: <20071001115721.GB17357@one.firstfloor.org> References: <20070930144443.M52139@visp.net.lb> <46FFE17C.9020202@cosmosbay.com> <200709301425.37564.nickpiggin@yahoo.com.au> <20070930220452.M25621@nuclearcat.com> <20071001103026.M59805@nuclearcat.com> <20071001111441.GA17357@one.firstfloor.org> <20071001114715.M51349@nuclearcat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071001114715.M51349@nuclearcat.com> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 700 Lines: 20 On Mon, Oct 01, 2007 at 02:52:03PM +0300, Denys wrote: > Hi > > No major differences. > Some procedures higher a bit, some lower a bit, but everything looks fine on > both kernels. > > Thats what i tried first - oprofile, and only one keypoint i was able to catch > - in top softirqd/0 or /1 shows usage 100% cpu, and in mpstat - soft% also > reaching 100%. Then you likely just have higher load. What makes you think this is a kernel problem? -Andi - 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/