From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 12 Sep 2007 10:06:49 -0700 (PDT) From: Christoph Lameter Subject: Re: [PATCH 4/6] Embed zone_id information within the zonelist->zones pointer In-Reply-To: <20070912165138.5deb4db4.kamezawa.hiroyu@jp.fujitsu.com> Message-ID: References: <20070911213006.23507.19569.sendpatchset@skynet.skynet.ie> <20070911213127.23507.34058.sendpatchset@skynet.skynet.ie> <20070912165138.5deb4db4.kamezawa.hiroyu@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: KAMEZAWA Hiroyuki Cc: Mel Gorman , Lee.Schermerhorn@hp.com, akpm@linux-foundation.org, ak@suse.de, linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: On Wed, 12 Sep 2007, KAMEZAWA Hiroyuki wrote: > If we really want to avoid unnecessary access to "zone" while walking zonelist, > above may do something good. Cons is this makes sizeof zonlist bigger. The trouble is that the size of the zonelist would double with this approach. We have long zonelists and doubling the size could double the cachelines needed to be touched in order to scan the zonelists. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org