From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935288AbYEBPWK (ORCPT ); Fri, 2 May 2008 11:22:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761099AbYEBPVy (ORCPT ); Fri, 2 May 2008 11:21:54 -0400 Received: from 2605ds1-ynoe.1.fullrate.dk ([90.184.12.24]:36358 "EHLO shrek.krogh.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759860AbYEBPVx (ORCPT ); Fri, 2 May 2008 11:21:53 -0400 Message-ID: <481B317A.9030409@krogh.cc> Date: Fri, 02 May 2008 17:21:30 +0200 From: Jesper Krogh User-Agent: Thunderbird 2.0.0.12 (X11/20080227) MIME-Version: 1.0 To: Andrew Morton CC: linux-kernel@vger.kernel.org Subject: Re: Many open/close on same files yeilds "No such file or directory". References: <4819E316.7000607@krogh.cc> <20080501223938.921f7cd2.akpm@linux-foundation.org> <481ACEC4.2040205@krogh.cc> In-Reply-To: <481ACEC4.2040205@krogh.cc> 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 Jesper Krogh wrote: > Andrew Morton wrote: >>> I cannot reproduce it on other disks attached to the same server or on >>> other servers attached to similar disksystems. >> >> I guess it would be interesting to remount that filesystem with `noatime' >> to eliminate the last bit of I/O and block-=realted code. > > It is allready mounted noatime: > /dev/mapper/fx1200_vg-fx1200_lv on /z/fx1200 type ext3 (rw,noatime) Watching vmstat 1 while running the program confirms that there are absolutely no block i/o. Everything happens purely in the cache of the OS. Jesper -- Jesper