From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail191.messagelabs.com (mail191.messagelabs.com [216.82.242.19]) by kanga.kvack.org (Postfix) with ESMTP id DDF0F6008E4 for ; Mon, 2 Aug 2010 23:28:37 -0400 (EDT) Date: Tue, 3 Aug 2010 04:31:10 +0100 From: Chris Webb Subject: Re: Over-eager swapping Message-ID: <20100803033108.GA23117@arachsys.com> References: <20100802124734.GI2486@arachsys.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org To: Minchan Kim Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, KOSAKI Motohiro , Wu Fengguang List-ID: Minchan Kim writes: > Another possibility is _zone_reclaim_ in NUMA. > Your working set has many anonymous page. > > The zone_reclaim set priority to ZONE_RECLAIM_PRIORITY. > It can make reclaim mode to lumpy so it can page out anon pages. > > Could you show me /proc/sys/vm/[zone_reclaim_mode/min_unmapped_ratio] ? Sure, no problem. On the machine with the /proc/meminfo I showed earlier, these are # cat /proc/sys/vm/zone_reclaim_mode 0 # cat /proc/sys/vm/min_unmapped_ratio 1 I haven't changed either of these from the kernel default. Many thanks, Chris. -- 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