From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 26 Feb 2003 14:54:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 26 Feb 2003 14:54:53 -0500 Received: from mailout01.sul.t-online.com ([194.25.134.80]:13710 "EHLO mailout01.sul.t-online.com") by vger.kernel.org with ESMTP id convert rfc822-to-8bit; Wed, 26 Feb 2003 14:54:52 -0500 Content-Type: text/plain; charset=US-ASCII From: Marc-Christian Petersen Organization: Working Overloaded Linux Kernel To: linux-kernel@vger.kernel.org Subject: Re: VM problems in 2.4.20 Date: Wed, 26 Feb 2003 21:04:52 +0100 User-Agent: KMail/1.4.3 References: <20030226194043.GA14293@flounder.net> In-Reply-To: <20030226194043.GA14293@flounder.net> Cc: Adam McKenna MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Message-Id: <200302262101.57367.m.c.p@wolk-project.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 26 February 2003 20:40, Adam McKenna wrote: Hi Adam, > I'm having a VM issue on one of my servers running 2.4.20. well, the vanilla VM, hmm, sorry: sucks :) for large boxen. > As you can see there is plenty of memory sitting in buffers/cache. The > problem is that when our daily cronjobs run, the box starts swapping and > the load goes up to 30. The cronjobs are just the normal system cronjobs > like updatedb, checksecurity, etc. > I had this problem a while ago with 2.4.6-xfs and 2.4.14-xfs, but this is > stock 2.4.20 and I was under the impression that the VM was relatively OK > by now. > > adam@foxy:~$ grep -i mem /boot/config-2.4.20 > # CONFIG_NOHIGHMEM is not set > # CONFIG_HIGHMEM4G is not set > CONFIG_HIGHMEM64G=y > CONFIG_HIGHMEM=y > # Memory Technology Devices (MTD) > # CONFIG_BLK_DEV_UMEM is not set > # CONFIG_DEBUG_HIGHMEM is not set > Any suggestions? yes, use either -rmap (1) or -aa (2). 1.) www.surriel.com/patches (Rik van Riel) 2.) www.kernel.org/pub/linux/kernel/people/andrea/kernels (Andrea Arcangeli) There is also a recent thread you may want to read: - http://marc.theaimsgroup.com/?l=linux-kernel&m=104617534110371&w=2 ciao, Marc