Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753515Ab0HROi5 (ORCPT ); Wed, 18 Aug 2010 10:38:57 -0400 Received: from mga02.intel.com ([134.134.136.20]:37694 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753127Ab0HROiy (ORCPT ); Wed, 18 Aug 2010 10:38:54 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.56,227,1280732400"; d="scan'208";a="648922830" Date: Wed, 18 Aug 2010 22:38:01 +0800 From: Wu Fengguang To: Chris Webb Cc: Minchan Kim , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , KOSAKI Motohiro , Pekka Enberg Subject: Re: Over-eager swapping Message-ID: <20100818143801.GA9086@localhost> References: <20100803033108.GA23117@arachsys.com> <20100803042835.GA17377@localhost> <20100803214945.GA2326@arachsys.com> <20100804022148.GA5922@localhost> <20100804032400.GA14141@localhost> <20100804095811.GC2326@arachsys.com> <20100804114933.GA13527@localhost> <20100804120430.GB23551@arachsys.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100804120430.GB23551@arachsys.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 551 Lines: 17 Chris, Did you enable any NUMA policy? That could start swapping even if there are lots of free pages in some nodes. Are your free pages equally distributed over the nodes? Or limited to some of the nodes? Try this command: grep MemFree /sys/devices/system/node/node*/meminfo Thanks, Fengguang -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/