From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 17 Sep 2007 11:14:32 -0700 (PDT) From: Christoph Lameter Subject: Re: [PATCH/RFC 0/5] Memory Policy Cleanups and Enhancements In-Reply-To: <20070916180527.GB15184@skynet.ie> Message-ID: References: <20070830185053.22619.96398.sendpatchset@localhost> <1189527657.5036.35.camel@localhost> <1189691837.5013.43.camel@localhost> <20070913182344.GB23752@skynet.ie> <20070913141704.4623ac57.akpm@linux-foundation.org> <20070914085335.GA30407@skynet.ie> <1189800926.5315.76.camel@localhost> <20070916180527.GB15184@skynet.ie> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Mel Gorman Cc: Lee Schermerhorn , Andrew Morton , linux-mm@kvack.org, ak@suse.de, mtk-manpages@gmx.net, solo@google.com, eric.whitney@hp.com List-ID: On Sun, 16 Sep 2007, Mel Gorman wrote: > I wonder why they are slower for the remote allocations. I wonder if what we're > seeing is due to a longer zonelist that is filtered instead of a customised > shorter zonelist. By and large though, the differences are small as to not > be noticed. Maybe because of the node lookups in the zone? A remote allocation with an MPOL_BIND list requires longer traversal of the zone list and a comparison of node ids by dereferencing the zone. -- 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