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From: "J. Bruce Fields" <bfields@fieldses.org>
To: Fu Liankun <fuliankun@cn.fujitsu.com>
Cc: linux-nfs@vger.kernel.org
Subject: Re: spnfs write performance issue
Date: Mon, 27 Feb 2012 20:53:24 -0500	[thread overview]
Message-ID: <20120228015324.GB28042@fieldses.org> (raw)
In-Reply-To: <4F4C3262.9050301@cn.fujitsu.com>

On Tue, Feb 28, 2012 at 09:48:18AM +0800, Fu Liankun wrote:
> 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.

OK, got it.

I'm not sure if anyone here can talk about the performance of spnfs.
It's not really maintained as far as I know.

So, you're the expert.

--b.

  reply	other threads:[~2012-02-28  1:53 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-22 10:16 spnfs write performance issue Fu Liankun
2012-02-22 17:25 ` J. Bruce Fields
2012-02-27  6:27   ` Fu Liankun
2012-02-27 12:01     ` J. Bruce Fields
2012-02-28  1:32       ` Fu Liankun
2012-02-28  1:46         ` J. Bruce Fields
2012-02-28  1:48           ` Fu Liankun
2012-02-28  1:53             ` J. Bruce Fields [this message]
2012-02-28  2:14               ` Fu Liankun
2012-02-28  9:27               ` Benny Halevy

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