From owner-freebsd-fs@FreeBSD.ORG Thu May 25 12:12:43 2006 Return-Path: X-Original-To: freebsd-fs@freebsd.org Delivered-To: freebsd-fs@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 904C716A51D; Thu, 25 May 2006 12:12:43 +0000 (UTC) (envelope-from yanyuejin2004@hotmail.com) Received: from hotmail.com (bay23-f7.bay23.hotmail.com [64.4.22.57]) by mx1.FreeBSD.org (Postfix) with ESMTP id 561B843D46; Thu, 25 May 2006 12:12:43 +0000 (GMT) (envelope-from yanyuejin2004@hotmail.com) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 25 May 2006 05:12:43 -0700 Message-ID: Received: from 69.45.64.21 by by23fd.bay23.hotmail.msn.com with HTTP; Thu, 25 May 2006 12:12:42 GMT X-Originating-IP: [61.187.16.2] X-Originating-Email: [yanyuejin2004@hotmail.com] X-Sender: yanyuejin2004@hotmail.com From: "etalk etalk" To: freebsd-fs@freebsd.org, freebsd-performance-request@freebsd.org Date: Thu, 25 May 2006 20:12:42 +0800 Mime-Version: 1.0 Content-Type: text/plain; charset=gb2312; format=flowed X-OriginalArrivalTime: 25 May 2006 12:12:43.0024 (UTC) FILETIME=[86665900:01C67FF4] X-Mailman-Approved-At: Thu, 25 May 2006 12:30:02 +0000 Cc: Subject: about ufs filesystem io performance! X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 May 2006 12:12:47 -0000 5.3 vs 6.0 The test tool is Iozone3_257, and the test command is “./iozone -A -f /mnt/tmpfile.test -g 1g -n 1m -q 8k -y 2k -R -b outfile-Af.xls ” (http://www.iozone.org/src/current/). We ran all the tests on the same PC with 2.4 GHz Pentium CPU and 512M main memory. Figure1~Figure5 show the results of the file system performance comparison between Bsd5.3’s UFS2 and Bsd6.0’s UFS2 when testing with different file system (local, sync, async, softupdate, sync+softupdate). According to the figures, our conclusion is: On all kinds of file systems, the write, rewrite, read and reread performance of the two is almost same and we cant say that Bsd6.0 make a improvement on file system IO performance. http://blog.csdn.net/minerboyIo/Gallery/204114.aspx linux2.6.11 vs bsd 5.3 The test tool is Iozone3_257, and the test command is “./iozone -A -f /mnt/tmpfile.test -g 1g -n 4m -q 8k -y 2k -R -b outfile-Af.xls ” (http://www.iozone.org/src/current/). We ran all the tests on the same PC with 2.4 GHz Pentium CPU and 512M main memory, Figure1, Figure2, Figure3 show the results of the file system performance comparison between Bsd’s UFS2 and Linux’ Ext3 (the Linux kernel version is 2.6.11, and the Bsd kernel version is 5.3) when testing with sync, async and local (Bsd using softupdate) file system. According to the figures, our conclusion is: a.On local file system and async file system, Fedora4’s write and rewrite is much faster than Bsd5.3’s (about 5-10 times). b.On all kinds of file systems, the read and reread performance of FreeBsd5.3 is about 50%-90% lower than that of Fedora4. c.On sync file system, Bsd5.3 writes several times faster than Fedora4 does and rewrites over two hundred times faster than Fedora4 does. http://blog.csdn.net/minerboyIo/Gallery/204107.aspx _________________________________________________________________ 享用世界上最大的电子邮件系统— MSN Hotmail。 http://www.hotmail.com