From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261731AbTL1Qk2 (ORCPT ); Sun, 28 Dec 2003 11:40:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261733AbTL1Qk2 (ORCPT ); Sun, 28 Dec 2003 11:40:28 -0500 Received: from holomorphy.com ([199.26.172.102]:31922 "EHLO holomorphy.com") by vger.kernel.org with ESMTP id S261731AbTL1Qk1 (ORCPT ); Sun, 28 Dec 2003 11:40:27 -0500 Date: Sun, 28 Dec 2003 08:39:52 -0800 From: William Lee Irwin III To: Linus Torvalds Cc: "Eric W. Biederman" , Anton Ertl , linux-kernel@vger.kernel.org Subject: Re: Page Colouring (was: 2.6.0 Huge pages not working as expected) Message-ID: <20031228163952.GQ22443@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Linus Torvalds , "Eric W. Biederman" , Anton Ertl , linux-kernel@vger.kernel.org References: <179fV-1iK-23@gated-at.bofh.it> <179IS-1VD-13@gated-at.bofh.it> <2003Dec27.212103@a0.complang.tuwien.ac.at> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 27 Dec 2003, Eric W. Biederman wrote: >> For anyone taking you up on this I'd like to suggest two possible >> directions. >> 1) Increasing PAGE_SIZE in the kernel. On Sat, Dec 27, 2003 at 08:53:30PM -0800, Linus Torvalds wrote: > Yes. This is something I actually want to do anyway for 2.7.x. Dan > Phillips had some patches for this six months ago. > You have to be careful, since you have to be able to mmap "partial pages", > which is what makes it less than trivial, but there are tons of reasons to > want to do this, and cache coloring is actually very much a secondary > concern. I've not seen Dan Phillips' code for this. I've been hacking on something doing this since late last December. -- wli