From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264816AbUEEWE6 (ORCPT ); Wed, 5 May 2004 18:04:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264817AbUEEWE6 (ORCPT ); Wed, 5 May 2004 18:04:58 -0400 Received: from [213.171.41.46] ([213.171.41.46]:2310 "EHLO kaamos.homelinux.net") by vger.kernel.org with ESMTP id S264816AbUEEWEz (ORCPT ); Wed, 5 May 2004 18:04:55 -0400 From: Alexey Kopytov Organization: MySQL AB To: Andrew Morton Subject: Re: Random file I/O regressions in 2.6 Date: Thu, 6 May 2004 02:04:51 +0400 User-Agent: KMail/1.6.2 Cc: linuxram@us.ibm.com, nickpiggin@yahoo.com.au, peter@mysql.com, linux-kernel@vger.kernel.org, axboe@suse.de References: <200405022357.59415.alexeyk@mysql.com> <200405050301.32355.alexeyk@mysql.com> <20040504162037.6deccda4.akpm@osdl.org> In-Reply-To: <20040504162037.6deccda4.akpm@osdl.org> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200405060204.51591.alexeyk@mysql.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andrew Morton wrote: >Alexey Kopytov wrote: >> With the patch: >> --------------- >> Time spent for test: 86.5459s >> >> no of times window reset because of hits: 0 >> no of times window reset because of misses: 0 >> no of times window was shrunk because of hits: 1066 >> no of times the page request was non-contiguous: 5860 >> no of times the page request was contiguous : 18099 > >The patch brought my test box to the same speed as 2.4. With the deadline >scheduler it was a bit faster than 2.4. I didn't do a lot of testing >though. I was using ext2. Please try deadline. > Results with the deadline scheduler on my hardware: Time spent for test: 92.8340s no of times window reset because of hits: 0 no of times window reset because of misses: 0 no of times window was shrunk because of hits: 1108 no of times the page request was non-contiguous: 5860 no of times the page request was contiguous : 18091 I have updated the results on the SysBench home page with 2.6.6-rc3 with the patch applied. -- Alexey Kopytov, Software Developer MySQL AB, www.mysql.com Are you MySQL certified? www.mysql.com/certification