Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753158Ab0ADMhy (ORCPT ); Mon, 4 Jan 2010 07:37:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752524Ab0ADMhv (ORCPT ); Mon, 4 Jan 2010 07:37:51 -0500 Received: from casper.infradead.org ([85.118.1.10]:58140 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752160Ab0ADMhu (ORCPT ); Mon, 4 Jan 2010 07:37:50 -0500 Date: Mon, 4 Jan 2010 04:40:24 -0800 From: Arjan van de Ven To: Lin Ming Cc: Mike Galbraith , Peter Zijlstra , lkml , "Zhang, Yanmin" Subject: Re: volano ~30% regression with 2.6.33-rc1 & -rc2 Message-ID: <20100104044024.5390ff1c@infradead.org> In-Reply-To: <1262592958.22471.104.camel@minggr.sh.intel.com> References: <1262592958.22471.104.camel@minggr.sh.intel.com> Organization: Intel X-Mailer: Claws Mail 3.7.3 (GTK+ 2.16.6; i586-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 804 Lines: 22 On Mon, 04 Jan 2010 16:15:58 +0800 Lin Ming wrote: > Mike & Peter, > > Compared with 2.6.32, volano has ~30% regression with 2.6.33-rc1 & > -rc2. Testing machine: Tigerton Xeon, 16cpus(4P/4Core), 16G memory did this show up only on this cpu? (since this is a multi-core-without-shared-cache cpu, it could be that we get the topology wrong and think cores share cache where they don't) -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org -- 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/