Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765779AbXHDVly (ORCPT ); Sat, 4 Aug 2007 17:41:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762862AbXHDVlr (ORCPT ); Sat, 4 Aug 2007 17:41:47 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:49435 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1762240AbXHDVlr (ORCPT ); Sat, 4 Aug 2007 17:41:47 -0400 Date: Sat, 4 Aug 2007 22:48:34 +0100 From: Alan Cox To: Ingo Molnar Cc: J??rn Engel , Jeff Garzik , 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: <20070804224834.5187f9b7@the-village.bc.nu> In-Reply-To: <20070804202830.GA4538@elte.hu> References: <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> <20070804202830.GA4538@elte.hu> X-Mailer: Claws Mail 2.9.1 (GTK+ 2.10.13; i386-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 726 Lines: 15 > > People just need to know about the performance differences - very few > > realise its more than a fraction of a percent. I'm sure Gentoo will > > use relatime the moment anyone knows its > 5% 8) > > noatime,nodiratime gave 50% of wall-clock kernel rpm build performance > improvement for Dave Jones, on a beefy box. Unless i misunderstood what > you meant under 'fraction of a percent' your numbers are _WAY_ off. What numbers - I didn't quote any performance numbers ? - 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/