From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261202AbVFAXdy (ORCPT ); Wed, 1 Jun 2005 19:33:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261488AbVFAXcM (ORCPT ); Wed, 1 Jun 2005 19:32:12 -0400 Received: from dsl027-180-168.sfo1.dsl.speakeasy.net ([216.27.180.168]:24220 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S261490AbVFAXX7 (ORCPT ); Wed, 1 Jun 2005 19:23:59 -0400 Date: Wed, 01 Jun 2005 16:23:21 -0700 (PDT) Message-Id: <20050601.162321.58454567.davem@davemloft.net> To: nickpiggin@yahoo.com.au Cc: jschopp@austin.ibm.com, mel@csn.ul.ie, linux-mm@kvack.org, linux-kernel@vger.kernel.org, akpm@osdl.org Subject: Re: Avoiding external fragmentation with a placement policy Version 12 From: "David S. Miller" In-Reply-To: <429E4023.2010308@yahoo.com.au> References: <20050531112048.D2511E57A@skynet.csn.ul.ie> <429E20B6.2000907@austin.ibm.com> <429E4023.2010308@yahoo.com.au> X-Mailer: Mew version 3.3 on Emacs 21.4 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Nick Piggin Date: Thu, 02 Jun 2005 09:09:23 +1000 > It adds a lot of complexity to the page allocator and while > it might be very good, the only improvement we've been shown > yet is allocating lots of MAX_ORDER allocations I think? (ie. > not very useful) I've been silently sitting back and considering how much this kind of patch could help with page coloring, all existing implementations of which fall apart due to buddy allocator fragmentation issues.