From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261218AbTIOHnt (ORCPT ); Mon, 15 Sep 2003 03:43:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261219AbTIOHnt (ORCPT ); Mon, 15 Sep 2003 03:43:49 -0400 Received: from pc1-cwma1-5-cust4.swan.cable.ntl.com ([80.5.120.4]:24738 "EHLO dhcp23.swansea.linux.org.uk") by vger.kernel.org with ESMTP id S261218AbTIOHns (ORCPT ); Mon, 15 Sep 2003 03:43:48 -0400 Subject: Re: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata From: Alan Cox To: John Bradford Cc: davidsen@tmr.com, zwane@linuxpower.ca, Linux Kernel Mailing List In-Reply-To: <200309150632.h8F6WnHb000589@81-2-122-30.bradfords.org.uk> References: <200309150632.h8F6WnHb000589@81-2-122-30.bradfords.org.uk> Content-Type: text/plain Content-Transfer-Encoding: 7bit Message-Id: <1063611650.2674.1.camel@dhcp23.swansea.linux.org.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.4 (1.4.4-6) Date: Mon, 15 Sep 2003 08:40:51 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Llu, 2003-09-15 at 07:32, John Bradford wrote: > That's a non-issue. 300 bytes matters a lot on some systems. The > fact that there are drivers that are bloated is nothing to do with > it. Its kind of irrelevant when by saying "Athlon" you've added 128 byte alignment to all the cache friendly structure padding. There are systems where memory matters, but spending a week chasing 300 bytes when you can knock out 50K is a waste of everyones time. Do the 40K problems first