Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765886AbXHDU2n (ORCPT ); Sat, 4 Aug 2007 16:28:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760224AbXHDU2e (ORCPT ); Sat, 4 Aug 2007 16:28:34 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:36178 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759925AbXHDU2e (ORCPT ); Sat, 4 Aug 2007 16:28:34 -0400 Message-ID: <46B4E161.9080100@garzik.org> Date: Sat, 04 Aug 2007 16:28:17 -0400 From: Jeff Garzik User-Agent: Thunderbird 1.5.0.12 (X11/20070719) MIME-Version: 1.0 To: Alan Cox CC: Ingo Molnar , =?ISO-8859-1?Q?J=F6rn_Engel?= , Linus Torvalds , Peter Zijlstra , linux-mm@kvack.org, Linux Kernel Mailing List , miklos@szeredi.hu, akpm@linux-foundation.org, neilb@suse.de, dgc@sgi.com, tomoki.sekiyama.qu@hitachi.com, nikita@clusterfs.com, trond.myklebust@fys.uio.no, yingchao.zhou@gmail.com, richard@rsk.demon.co.uk, david@lang.hm Subject: Re: [PATCH 00/23] per device dirty throttling -v8 References: <20070803123712.987126000@chello.nl> <20070804063217.GA25069@elte.hu> <20070804070737.GA940@elte.hu> <20070804103347.GA1956@elte.hu> <20070804163733.GA31001@elte.hu> <46B4C0A8.1000902@garzik.org> <20070804191205.GA24723@lazybastard.org> <20070804192130.GA25346@elte.hu> <20070804211156.5f600d80@the-village.bc.nu> In-Reply-To: <20070804211156.5f600d80@the-village.bc.nu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.3 (----) X-Spam-Report: SpamAssassin version 3.1.9 on srv5.dvmed.net summary: Content analysis details: (-4.3 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1342 Lines: 35 Alan Cox wrote: > In some setups it will and in others it won't. Nor is it the only > application that has this requirement. Ext3 currently is a standards > compliant file system. Turn off atime and its very non standards > compliant, turn to relatime and its not standards compliant but nobody > will break (which is good) Linux has always been a "POSIX unless its stupid" type of system. For the upstream kernel, we should do the right thing -- noatime by default -- but allow distros and people that care about rigid compliance to easily change the default. (from another message) > If you want to sort this in Fedora for example you just need to package > and announce a desktop-tuning rpm which makes the relevant updates on > install and reverses them on remove. Stick the scheduler/vm tuning values > in as well and the disk queue tweaks. > > Regardless of the kernel defaults people will install such a package > en-mass... Sounds like an effective idea :) Though strictly in the context of atime vs. noatime, servers benefit from that too, not just desktop. Jeff - 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/