From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail202.messagelabs.com (mail202.messagelabs.com [216.82.254.227]) by kanga.kvack.org (Postfix) with SMTP id BEF606B01F2 for ; Wed, 18 Aug 2010 11:57:14 -0400 (EDT) Date: Wed, 18 Aug 2010 10:57:09 -0500 (CDT) From: Christoph Lameter Subject: Re: Over-eager swapping In-Reply-To: <20100818152103.GA11268@localhost> Message-ID: References: <20100803042835.GA17377@localhost> <20100803214945.GA2326@arachsys.com> <20100804022148.GA5922@localhost> <20100804032400.GA14141@localhost> <20100804095811.GC2326@arachsys.com> <20100804114933.GA13527@localhost> <20100804120430.GB23551@arachsys.com> <20100818143801.GA9086@localhost> <20100818144655.GX2370@arachsys.com> <20100818152103.GA11268@localhost> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Wu Fengguang Cc: Chris Webb , Minchan Kim , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , KOSAKI Motohiro , Pekka Enberg , Andi Kleen , Lee Schermerhorn List-ID: On Wed, 18 Aug 2010, Wu Fengguang wrote: > Andi, Christoph and Lee: > > This looks like an "unbalanced NUMA memory usage leading to premature > swapping" problem. Is zone reclaim active? It may not activate on smaller systems leading to an unbalance memory usage between node. -- 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