From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030682AbXDZPsV (ORCPT ); Thu, 26 Apr 2007 11:48:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1031193AbXDZPsV (ORCPT ); Thu, 26 Apr 2007 11:48:21 -0400 Received: from netops-testserver-3-out.sgi.com ([192.48.171.28]:42550 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1030682AbXDZPsU (ORCPT ); Thu, 26 Apr 2007 11:48:20 -0400 Date: Thu, 26 Apr 2007 08:48:19 -0700 (PDT) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: KAMEZAWA Hiroyuki cc: Andi Kleen , linux-kernel@vger.kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org Subject: Re: [PATCH] change global zonelist order on NUMA v2 In-Reply-To: <20070426191043.df96c114.kamezawa.hiroyu@jp.fujitsu.com> Message-ID: References: <20070426183417.058f6f9e.kamezawa.hiroyu@jp.fujitsu.com> <200704261147.44413.ak@suse.de> <20070426191043.df96c114.kamezawa.hiroyu@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 26 Apr 2007, KAMEZAWA Hiroyuki wrote: > (1)Use new zonelist ordering always and move init_task's tied cpu to a > cpu on the best node. > Child processes will start in good nodes even if Node 0 has small memory. How about renumbering the nodes? Node 0 is the one with no DMA memory and node 1 may be the one with the DMA? That would take care of things even without core modifications. We can start on node 0 (which hardware 1) and consume the required memory for boot there not impacting the node with the DMA memory.