Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761364AbYCGDXK (ORCPT ); Thu, 6 Mar 2008 22:23:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756808AbYCGDWx (ORCPT ); Thu, 6 Mar 2008 22:22:53 -0500 Received: from cantor2.suse.de ([195.135.220.15]:48610 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755473AbYCGDWw (ORCPT ); Thu, 6 Mar 2008 22:22:52 -0500 Date: Fri, 7 Mar 2008 04:22:51 +0100 From: Nick Piggin To: Christoph Lameter Cc: David Miller , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, yanmin_zhang@linux.intel.com, dada1@cosmosbay.com Subject: Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment Message-ID: <20080307032251.GG21185@wotan.suse.de> References: <20080304.161003.129716254.davem@davemloft.net> <20080306025758.GB27150@wotan.suse.de> <20080307022355.GB21185@wotan.suse.de> <20080307023223.GD21185@wotan.suse.de> <20080307031044.GF21185@wotan.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 817 Lines: 20 On Thu, Mar 06, 2008 at 07:18:54PM -0800, Christoph Lameter wrote: > On Fri, 7 Mar 2008, Nick Piggin wrote: > > > No, it *is not about avoiding cacheline contention*. As such, the rest > > of what you wrote below about smp_align etc is rubbish. > > > > Can you actually read what I posted? > > I am trying but it barely makes sense. You first state that it > is *not* about avoiding cacheline contention and then argue that it > reduces cacheline contention. Where do I argue that it reduces cacheline contention? All arguments I made apply to a UP system equally. -- 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/