From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755741AbZBWRcD (ORCPT ); Mon, 23 Feb 2009 12:32:03 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752441AbZBWRbu (ORCPT ); Mon, 23 Feb 2009 12:31:50 -0500 Received: from one.firstfloor.org ([213.235.205.2]:33779 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752566AbZBWRbu (ORCPT ); Mon, 23 Feb 2009 12:31:50 -0500 Date: Mon, 23 Feb 2009 18:49:48 +0100 From: Andi Kleen To: Mel Gorman Cc: Andi Kleen , Linux Memory Management List , Pekka Enberg , Rik van Riel , KOSAKI Motohiro , Christoph Lameter , Johannes Weiner , Nick Piggin , Linux Kernel Mailing List , Lin Ming , Zhang Yanmin Subject: Re: [RFC PATCH 00/20] Cleanup and optimise the page allocator Message-ID: <20090223174947.GT26292@one.firstfloor.org> References: <1235344649-18265-1-git-send-email-mel@csn.ul.ie> <87ljryuij0.fsf@basil.nowhere.org> <20090223143232.GJ6740@csn.ul.ie> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090223143232.GJ6740@csn.ul.ie> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > hmm, it would be ideal but I haven't looked too closely at how it could > be implemented. I thought first you could just associate a zonelist with Yes like that. This was actually discussed during the initial cpuset implementation. I thought back then it would be better to do it elsewhere, but changed my mind later when I saw the impact on the fast path. > the cpuset but you'd need one for each node allowed by the cpuset so it > could get quite large. Then again, it might be worthwhile if cpusets Yes you would need one per node, but that's not a big problem because systems with lots of nodes are also expected to have lots of memory. Most systems have a very small number of nodes. -Andi -- ak@linux.intel.com -- Speaking for myself only.