Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762927AbYCEG2e (ORCPT ); Wed, 5 Mar 2008 01:28:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756601AbYCEG2P (ORCPT ); Wed, 5 Mar 2008 01:28:15 -0500 Received: from mga05.intel.com ([192.55.52.89]:65492 "EHLO fmsmga101.fm.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756109AbYCEG2O (ORCPT ); Wed, 5 Mar 2008 01:28:14 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.25,448,1199692800"; d="scan'208";a="528925495" Subject: Re: 2.6.25-rc3-git3: Reported regressions from 2.6.24 From: "Zhang, Yanmin" To: Dhaval Giani Cc: "Rafael J. Wysocki" , LKML , Andrew Morton , Linus Torvalds , Adrian Bunk , Peter Zijlstra , Srivatsa Vaddagiri , Balbir Singh , Ingo Molnar In-Reply-To: <1204682782.3248.189.camel@ymzhang> References: <200803030316.07165.rjw@sisk.pl> <20080304112741.GA13428@linux.vnet.ibm.com> <1204682782.3248.189.camel@ymzhang> Content-Type: text/plain; charset=utf-8 Date: Wed, 05 Mar 2008 14:26:33 +0800 Message-Id: <1204698393.3248.205.camel@ymzhang> Mime-Version: 1.0 X-Mailer: Evolution 2.9.2 (2.9.2-2.fc7) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1786 Lines: 36 On Wed, 2008-03-05 at 10:06 +0800, Zhang, Yanmin wrote: > On Tue, 2008-03-04 at 16:57 +0530, Dhaval Giani wrote: > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=9978 > > > Subject : 2.6.25-rc1: volanoMark 45% regression > > > Submitter : Zhang, Yanmin > > > Date : 2008-02-13 10:30 > > > References : http://lkml.org/lkml/2008/2/13/128 > > > Handled-By : Srivatsa Vaddagiri > > > Balbir Singh > > > > Peter's revert of the load balance patches should fix this one. Yanmin, > > could you please confirm if the patch at > > http://lkml.org/lkml/2008/2/25/202 helps? > I tested it against 2.6.25-rc3 on my 16-core tigerton machine. It really improves > volano result although it doesn't recover all the result. > Comparing with 2.6.24, without the patch, volanoMark has about 50% regression > with 2.6.25-rc3. With the patch, volanoMark has about 15% regression. One more update on the reverted patch: Comparing with 2.6.24, cpu2000-fp has about 4% regression with kernel 2.6.25-rc on my madison IPF machine. As you know, cpu2000-fp consists of many sub-testing. The most regression looks relevant to a couple of testing in the middle step. But if I ran the sub-testing manually, I couldn't see any regression. If I started kernel with boot parameter maxcpus=1, the regression becomes 1%. If I apply Peter's revert patch to 2.6.25-rc3, the regression also becomes 1%. I don't know what causes the last 1% regression. -yanmin -- 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/