Subject: Re: nfs sync, slow
To: Ignatios Souvatzis <>
From: Tracy J. Di Marco White <>
List: current-users
Date: 12/05/2000 16:27:43
}On Mon, Dec 04, 2000 at 09:10:08PM -0600, Tracy Di Marco White wrote:
}> I've put together an i386 box running 1.5_ALPHA2.  It's exporting a 90GB
}> filesystem via NFS.  It's quite quick for things we do directly on the
}> filesystem (ffs+softdep), but if we try to do things via NFS, it's
}> tremendously slower.  It's quicker to scp a file then copy it via NFS.
}> The network is 100MB, and watching the hard drive lights when copying
}> things shows that NFS copies things synchonously, while scp and other
}I'm only an informed layman wrt. NFS, but:
}Thats the normal NFS v2 write semantics.

I know.  I don't like it much, though. :)

}What OS are you using on the clients? Can it do NFS v3? If yes, does it do it?

NetBSD and Linux are the NFS clients.  Linux is slower, I believe they've
only gotten v2 to work.  I've gotten the NetBSD boxes to be slightly faster,
I've changed -r & -w to 16K.  I'm not sure if that's led to improvement
on the Linux boxes, I'll be checking benchmarks on them later today.

Tracy J. Di Marco White
Project Vincent Systems Manager