Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754230AbZIIUte (ORCPT ); Wed, 9 Sep 2009 16:49:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754218AbZIIUtd (ORCPT ); Wed, 9 Sep 2009 16:49:33 -0400 Received: from depni.sinp.msu.ru ([213.131.7.21]:56208 "EHLO depni.sinp.msu.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754213AbZIIUtb (ORCPT ); Wed, 9 Sep 2009 16:49:31 -0400 From: Serge Belyshev To: Ingo Molnar Cc: Con Kolivas , linux-kernel@vger.kernel.org, Peter Zijlstra , Mike Galbraith Subject: Re: Epic regression in throughput since v2.6.23 References: <20090906205952.GA6516@elte.hu> <87hbvdiogq.fsf@depni.sinp.msu.ru> <873a6xdqwq.fsf@depni.sinp.msu.ru> <20090909155223.GA12065@elte.hu> Date: Wed, 09 Sep 2009 20:49:30 +0000 In-Reply-To: <20090909155223.GA12065@elte.hu> (Ingo Molnar's message of "Wed, 9 Sep 2009 17:52:23 +0200") Message-ID: <87my53vo6d.fsf@depni.sinp.msu.ru> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 590 Lines: 17 Ingo Molnar writes: > Thanks! > > I think we found the reason for that regression - would you mind > to re-test with latest -tip, e157986 or later? > > If that works for you i'll describe our theory. > Good job -- seems to work, thanks. Regression is still about 3% though: http://img3.imageshack.us/img3/5335/epicbfstip.png -- 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/