From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263319AbTDGIEq (for ); Mon, 7 Apr 2003 04:04:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263320AbTDGIEq (for ); Mon, 7 Apr 2003 04:04:46 -0400 Received: from unthought.net ([212.97.129.24]:35500 "EHLO mail.unthought.net") by vger.kernel.org with ESMTP id S263319AbTDGIEp (for ); Mon, 7 Apr 2003 04:04:45 -0400 Date: Mon, 7 Apr 2003 10:16:19 +0200 From: Jakob Oestergaard To: Badari Pulavarty Cc: andrew , linux-kernel@vger.kernel.org Subject: Re: Testing with 4000 disks Message-ID: <20030407081618.GB2473@unthought.net> Mail-Followup-To: Jakob Oestergaard , Badari Pulavarty , andrew , linux-kernel@vger.kernel.org References: <200304041024.33418.pbadari@us.ibm.com> <3E8DD614.1060500@us.ibm.com> <200304041355.05296.pbadari@us.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <200304041355.05296.pbadari@us.ibm.com> User-Agent: Mutt/1.3.28i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 04, 2003 at 01:55:05PM -0800, Badari Pulavarty wrote: > Okay !! I just made all my filesystem except root ext2. > (I couldn't boot when I configed out ext3 - mounting > root failed). > > Anyway, problem seem to have gone away.. > Machine is really slow while trying to do IO on > all 4000 filesystems. It is slowly creating processes. > System is 100% busy. (so far, it created 461 processes > out of 4000). But we are not running out of lowmem and > inode caches seems to be reasonable.. > > So, it must be some leak in ext3.. > Or bad things happening because you have hundreds of processes all updating the same physical journal... You mounted rw, and reading a file causes a write due to atime updates. -- ................................................................ : jakob@unthought.net : And I see the elder races, : :.........................: putrid forms of man : : Jakob Østergaard : See him rise and claim the earth, : : OZ9ABN : his downfall is at hand. : :.........................:............{Konkhra}...............: