Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760839AbXHESKT (ORCPT ); Sun, 5 Aug 2007 14:10:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754524AbXHESKG (ORCPT ); Sun, 5 Aug 2007 14:10:06 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:42778 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752074AbXHESKE (ORCPT ); Sun, 5 Aug 2007 14:10:04 -0400 Date: Sun, 5 Aug 2007 20:09:41 +0200 From: Ingo Molnar To: Jeff Garzik Cc: Theodore Tso , Alan Cox , Claudio Martins , =?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 Message-ID: <20070805180941.GE3244@elte.hu> References: <20070803123712.987126000@chello.nl> <46B4E161.9080100@garzik.org> <20070804224706.617500a0@the-village.bc.nu> <200708050051.40758.ctpm@ist.utl.pt> <20070805014926.400d0608@the-village.bc.nu> <20070805144645.GA28263@thunk.org> <20070805175547.GC3244@elte.hu> <46B60FFC.2000909@garzik.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <46B60FFC.2000909@garzik.org> User-Agent: Mutt/1.5.14 (2007-02-12) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: 1.0 X-ELTE-SpamLevel: s X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=1.0 required=5.9 tests=BAYES_50 autolearn=no SpamAssassin version=3.0.3 1.0 BAYES_50 BODY: Bayesian spam probability is 40 to 60% [score: 0.4815] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 644 Lines: 18 * Jeff Garzik wrote: > > yeah, i didnt mean to say that it is _always_ a big issue, but "only > > a small number of files are read" is a very, very small minority of > > even the database server world. > > OTOH, consider a popular Linux task, web serving. atime results in a > lot of unnecessary disk traffic. it's a big, noticeable effect on 99% of the Linux boxes. Ingo - 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/