Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264660AbTGHQ3t (ORCPT ); Tue, 8 Jul 2003 12:29:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264754AbTGHQ3t (ORCPT ); Tue, 8 Jul 2003 12:29:49 -0400 Received: from www.13thfloor.at ([212.16.59.250]:50566 "EHLO www.13thfloor.at") by vger.kernel.org with ESMTP id S264660AbTGHQ3o (ORCPT ); Tue, 8 Jul 2003 12:29:44 -0400 Date: Tue, 8 Jul 2003 18:44:26 +0200 From: Herbert Poetzl To: Alan Cox Cc: trond.myklebust@fys.uio.no, Marcelo Tosatti , hannal@us.ibm.com, Linux Kernel Mailing List , Linux FSdevel Subject: Re: [PATCH] Fastwalk: reduce cacheline bouncing of d_count (Changelog@1.1024.1.11) Message-ID: <20030708164426.GB10004@www.13thfloor.at> Reply-To: herbert@13thfloor.at Mail-Followup-To: Alan Cox , trond.myklebust@fys.uio.no, Marcelo Tosatti , hannal@us.ibm.com, Linux Kernel Mailing List , Linux FSdevel References: <16138.53118.777914.828030@charged.uio.no> <1057673804.4357.27.camel@dhcp22.swansea.linux.org.uk> <16138.56467.342593.715679@charged.uio.no> <1057677613.4358.33.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <1057677613.4358.33.camel@dhcp22.swansea.linux.org.uk> User-Agent: Mutt/1.3.28i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 934 Lines: 26 On Tue, Jul 08, 2003 at 04:20:14PM +0100, Alan Cox wrote: > On Maw, 2003-07-08 at 16:00, Trond Myklebust wrote: > > ...but I do agree with your comment. The patch I meant to refer to > > (see revised title) does not appear in the 2.5.x tree either. > > > > Have we BTW been shown any numbers that support the alleged benefits? > > I may have missed those... > > A while ago yes - on very big SMP boxes. > > Its no big problem to me since I can just back it out of -ac just curious, because I use this patch since early 2.4.20, are there any reasons to 'back it out of -ac' for you? anyway I totally agree that the NFS issue pointed out by Trond should be addressed ... TIA, Herbert - 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/