From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261262AbVFBUKO (ORCPT ); Thu, 2 Jun 2005 16:10:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261304AbVFBUJ1 (ORCPT ); Thu, 2 Jun 2005 16:09:27 -0400 Received: from omx3-ext.sgi.com ([192.48.171.20]:4538 "EHLO omx3.sgi.com") by vger.kernel.org with ESMTP id S261262AbVFBTst (ORCPT ); Thu, 2 Jun 2005 15:48:49 -0400 Message-ID: <429F631E.6020401@engr.sgi.com> Date: Thu, 02 Jun 2005 14:50:54 -0500 From: Ray Bryant User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.2) Gecko/20040805 Netscape/7.2 X-Accept-Language: en-us, en MIME-Version: 1.0 To: jschopp@austin.ibm.com CC: Nick Piggin , "Martin J. Bligh" , Mel Gorman , linux-mm@kvack.org, linux-kernel@vger.kernel.org, akpm@osdl.org Subject: Re: Avoiding external fragmentation with a placement policy Version 12 References: <20050531112048.D2511E57A@skynet.csn.ul.ie> <429E20B6.2000907@austin.ibm.com> <429E4023.2010308@yahoo.com.au> <423970000.1117668514@flay> <429E483D.8010106@yahoo.com.au> <434510000.1117670555@flay> <429E50B8.1060405@yahoo.com.au> <429F2B26.9070509@austin.ibm.com> In-Reply-To: <429F2B26.9070509@austin.ibm.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > In summary here are the reasons I see to run with Mel's patch: > > 1. It really helps with medium-large allocations under memory pressure. > 2. Page migration defrag will need it. > 3. Memory hotplug remove will need it. > Could someone point me at the "Page migration defrag" patch, or describe what this is. Does this depend on the page migration patches from memory hotplug to move pages or is it something different? Thanks, -- Best Regards, Ray ----------------------------------------------- Ray Bryant 512-453-9679 (work) 512-507-7807 (cell) raybry@sgi.com raybry@austin.rr.com The box said: "Requires Windows 98 or better", so I installed Linux. -----------------------------------------------