From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 16 Mar 2003 21:16:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 16 Mar 2003 21:16:11 -0500 Received: from holomorphy.com ([66.224.33.161]:16856 "EHLO holomorphy") by vger.kernel.org with ESMTP id ; Sun, 16 Mar 2003 21:16:10 -0500 Date: Sun, 16 Mar 2003 18:26:46 -0800 From: William Lee Irwin III To: "Gregory K. Ruiz-Ade" Cc: linux-kernel@vger.kernel.org Subject: Re: 2.4.20 instability on bigmem systems? Message-ID: <20030317022646.GN20188@holomorphy.com> Mail-Followup-To: William Lee Irwin III , "Gregory K. Ruiz-Ade" , linux-kernel@vger.kernel.org References: <200303131627.22572.gregory@castandcrew.com> <200303140931.15541.gregory@castandcrew.com> <20030314200857.GL20188@holomorphy.com> <200303161815.11973.gregory@castandcrew.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200303161815.11973.gregory@castandcrew.com> User-Agent: Mutt/1.3.28i Organization: The Domain of Holomorphy Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Mar 16, 2003 at 06:15:11PM -0800, Gregory K. Ruiz-Ade wrote: > Okay, I tried to load the system a bit and stress out the disk I/O, running > a couple finds across the whole system (find | xargs stat, find | xargs cat > > /dev/null, a couple other things) after sucking up free memory by catting > our database disk files to /dev/null. I also had a 'make -j5 clean > oldconfig dep bzImage modules' running to try to drive the load up a bit, > too. > I've got snapshots of meminfo, slabinfo, and output from 'ps auxfww' at: > http://castandcrew.com/~gregory/lkmlstuff/burpr/2.4.20/loadtest/ > It only really starts getting interesting after 20030316.1725, when I > started the kernel build. I have a very simple shell script that basically > does nothing other than "make clean oldconfig dep && make -j5 bzImage && > make -j5 modules". I ran that a couple times in the sources for Red Hat's > 2.4.9-e.12 kernel sources. > Surprisingly I wasn't able to grind down the system like I expected. Not > sure why it's behaving so wonderfully today. If it didn't behave badly then it won't help to look at the stats. -- wli