Date: Wed, 29 Aug 2001 16:51:48 -0600
From: Gary Orser <orser@cns.montana.edu>
To: Tad Dolphay <tbd@sgi.com>
cc: linux-xfs@oss.sgi.com
Subject: Re: nfs3 problems w/xfs?
In-Reply-To: <200108290145.UAA79114@fsgi158.americas.sgi.com>
Message-ID: <Pine.SGI.4.10.10108291509270.22087-100000@case.cns.montana.edu>
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Sender: owner-linux-xfs@oss.sgi.com
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Tad,

Hmm, It looks like nfs3 wasn't working.

I upgraded to 4.5.9, with the 4.5.9-xfs patches
and now nfs3 works ok, however:
(must have been the version of nfs-utils)

I just copied a large file from the sgi server to this linux box
(512m 1.4g Athlon) and the box got buried.

Over a 100mb switched line a 3G file took 26 minutes, ok not spectacular.

Load average was over 7, system cpu % was over 85%.

The single processor on the origin 2000 (r10000) running nfsd was barely
turning over.

Terminal response was just barely usable on the linux box.
(e.g. it took 4 min. to get top running in another console window)

This was an ide drive but still...

Adding to this a little later on...
I did a little further stress testing
 
dd if=/dev/zero of=./test bs=1M count=3000
xfs=23 mins
ext2=22 mins
eliminating nfs and xfs
same buried processor.  It must be a kernel thing.

kswapd and kupdated were the big cpu hogs, although
there was never any swap used.

Any ideas?

Cheers, Gary
------------------------------------------------------
Gary Orser , (406) 994-6451, orser@nervana.montana.edu 
Montana State University
Center for Computational Biology
1 Lewis Hall, Bozeman MT, 59717

On Tue, 28 Aug 2001, Tad Dolphay wrote:

> > 
> > Tad,
> > 
> > xfs-linux was the client, Irix the server.
> > 
> Gary,
> 
> Assuming you can use 4g files locally on the xfs-linux machine without
> problems and can use 4g files locally on the Irix machine without problems
> then I think a snoop from the Irix machine would still be useful.
> 
> Thanks,
> Tad
> > Cheers, Gary
> > ------------------------------------------------------
> > Gary Orser , (406) 994-6451, orser@nervana.montana.edu 
> > Montana State University
> > Center for Computational Biology
> > 1 Lewis Hall, Bozeman MT, 59717
> > 
> > On Tue, 28 Aug 2001, Tad Dolphay wrote:
> > 
> > > > 
> > > > Hi,
> > > > 
> > > > I've installed linux 2.4.5, with xfs on a Suse 7.1 base install.
> > > > 
> > > > Got xfs working as well as nfs3 between an Irix 6.5.13m system.
> > > > 
> > > 
> > > Gary,
> > > 
> > > I assume xfs-linux is NFS server and Irix is NFS client? I've used 10g
> > > files without problems. Maybe a snoop from the Irix side would tell us
> > > something.
> > > 
> > > Thanks,
> > > Tad
> > > 
> > > > I can copy files < 2g, but get errors on large files > 4g.  
> > > >   cannot stat 'somelargefile' Input/output error
> > > > 
> > > > I've searched through the faq and group lists but can't
> > > > find anything related.
> > > > 
> > > > The only thing I haven't been able to try is kgcc and/or
> > > > the egcs compiler.  I can't find these for the Suse distro.
> > > > 
> > > > Cheers, Gary
> > > > ------------------------------------------------------
> > > > Gary Orser , (406) 994-6451, orser@nervana.montana.edu 
> > > > Montana State University
> > > > Center for Computational Biology
> > > > 1 Lewis Hall, Bozeman MT, 59717
> > > > 
> > > 
> > 
>