From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261309AbUB0AGZ (ORCPT ); Thu, 26 Feb 2004 19:06:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261390AbUB0AGY (ORCPT ); Thu, 26 Feb 2004 19:06:24 -0500 Received: from news.cistron.nl ([62.216.30.38]:19926 "EHLO ncc1701.cistron.net") by vger.kernel.org with ESMTP id S261309AbUB0AEa (ORCPT ); Thu, 26 Feb 2004 19:04:30 -0500 From: dth@ncc1701.cistron.net (Danny ter Haar) Subject: harddisk speed: 2.4.24 20+% faster then 2.6.3 Date: Fri, 27 Feb 2004 00:04:29 +0000 (UTC) Organization: Cistron Message-ID: X-Trace: ncc1701.cistron.net 1077840269 30817 62.216.30.38 (27 Feb 2004 00:04:29 GMT) X-Complaints-To: abuse@cistron.nl X-Newsreader: trn 4.0-test76 (Apr 2, 2001) Originator: dth@ncc1701.cistron.net (Danny ter Haar) To: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I've been checking, rechecking but cannot explain why a "vannilla" debian install kernel (sid-testing install cdrom) is faster then "Feisty Dunnart" on the same hardware. hardware: Mini-itx with 1Ghz via-C3 200GB udma harddisk. 2.4.24: Timing buffered disk reads: 150 MB in 3.01 seconds = 49.83 MB/sec 2.6.3 (vanilla): Timing buffered disk reads: 102 MB in 3.05 seconds = 33.40 MB/sec 2.6.3-mm4: Timing buffered disk reads: 108 MB in 3.00 seconds = 35.95 MB/sec Bonnie tests confirm this! hdparm & bonnie & kern.log for comparison put at: http://dth.net/c3/ Anyone any idea *why* ? Mayby i'm overlooking something (it's kind of late on this side of the pond) but still... Open for feedback. Danny -- /"\ | Dying is to be avoided because \ / ASCII RIBBON CAMPAIGN | it can ruin your whole career X against HTML MAIL | / \ and POSTINGS | - Bob Hope