Return-Path: linux-nfs-owner@vger.kernel.org Received: from cn.fujitsu.com ([222.73.24.84]:58207 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1754523Ab2B1Btv convert rfc822-to-8bit (ORCPT ); Mon, 27 Feb 2012 20:49:51 -0500 Message-ID: <4F4C3262.9050301@cn.fujitsu.com> Date: Tue, 28 Feb 2012 09:48:18 +0800 From: Fu Liankun MIME-Version: 1.0 To: "J. Bruce Fields" CC: linux-nfs@vger.kernel.org Subject: Re: spnfs write performance issue References: <4F44C071.8010104@cn.fujitsu.com> <20120222172510.GA12708@fieldses.org> <4F4B224C.8030101@cn.fujitsu.com> <20120227120136.GA21384@fieldses.org> <4F4C2EAA.1010505@cn.fujitsu.com> <20120228014618.GA28042@fieldses.org> In-Reply-To: <20120228014618.GA28042@fieldses.org> Content-Type: text/plain; charset=UTF-8; format=flowed Sender: linux-nfs-owner@vger.kernel.org List-ID: J. Bruce Fields 写道: > On Tue, Feb 28, 2012 at 09:32:26AM +0800, Fu Liankun wrote: >> J. Bruce Fields 写道: >>> On Mon, Feb 27, 2012 at 02:27:24PM +0800, Fu Liankun wrote: >>>> J. Bruce Fields 写道: >>>>> On Wed, Feb 22, 2012 at 06:16:17PM +0800, Fu Liankun wrote: >>>>>> When copy a big file(about 500MB) to nfs server using pnfs, it cost >>>>>> obvious longer time as compared with NFSv3 or NFSv4 protocol. >>>>>> >>>>>> PNFS cost about 300-550s >>>>>> NFSv3 cost about 49s >>>>>> NFSv4 cost about 49s >>>>>> >>>>>> My test environment as following: >>>>>> >>>>>> MDS: 3.1.0-rc8-pnfs ipaddr1: 192.168.0.100, ipaddr2:192.168.1.100 >>>>>> DS1: 3.1.0-rc8-pnfs ipaddr1: 192.168.0.101, ipaddr2:192.168.1.101 >>>>>> DS2: 3.1.0-rc8-pnfs ipaddr1: 192.168.0.102, ipaddr2:192.168.1.102 >>>>>> client: RHEL6.2GA(2.6.32-220.el6.i686) ipaddr1: 192.168.0.19, >>>>> What kind of server are you using? >>>> Sorry for late response. >>>> >>>> Fedora14 + 3.1.0-rc8-pnfs >>> And you're exporting gfs2? >> No. I'm exporting ext4. >> Does the file system type would influence the result? > > So you're using local-pnfs? Or spnfs? What setup instructions did you > follow? I'm using spnfs. --b > > --b. >