Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757549AbZKRPXR (ORCPT ); Wed, 18 Nov 2009 10:23:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754663AbZKRPXR (ORCPT ); Wed, 18 Nov 2009 10:23:17 -0500 Received: from mx1.redhat.com ([209.132.183.28]:53536 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753422AbZKRPXQ (ORCPT ); Wed, 18 Nov 2009 10:23:16 -0500 Message-ID: <4B041143.2080407@redhat.com> Date: Wed, 18 Nov 2009 10:22:43 -0500 From: Rik van Riel User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.4pre) Gecko/20090922 Fedora/3.0-3.9.b4.fc12 Lightning/1.0pre Thunderbird/3.0b4 MIME-Version: 1.0 To: Dan Merillat CC: linux-kernel@vger.kernel.org Subject: Re: Linux 2.6.31 - very swap-happy with plenty of free RAM References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 847 Lines: 21 On 11/18/2009 02:56 AM, Dan Merillat wrote: > 1.7gb of disk cache, 750 meg of free RAM, and it swaps out 300meg in a > matter of seconds when given access to a swapfile, then thrashes the > disk like crazy because that RAM was actively in use. > > Ideas on where to start looking? If this is a vmware issue I'll take > it to them. > This smells like a higher order memory allocation failed and either is doing a lot of direct reclaim or kicked kswapd until it freed up lots of memory. However, I do not believe we keep track of higher order reclaims in /proc/vmstat or elsewhere I looked :( -- 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/