Subject: Re: Miserable NFS performance between NetBSD and MacOS X
To: Matthias Scheler <>
From: Bill Studenmund <>
List: netbsd-users
Date: 12/14/2005 11:31:57
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On Tue, Dec 13, 2005 at 10:27:36PM +0000, Matthias Scheler wrote:
> 	Hello,
> I've got a NetBSD 3.0_RC6 NFS server and a MacOS X 10.3.9 NFS client.
> NFS works fine in general but is miserable slow. Copying a file 300MB
> file takes about an hour. Transfering a file of the same size with
> FTP only takes half a minute. "ttcp" between the two systems runs
> nicely at 90MB/s. The mount parameters in "mounts.byname"
> look like this:
> server:/remote/path /local/path nfs rw,nosuid,nodevs,resvport,tcp 0 0
> Has anybody else seen similar problems? Is there a solution?

I see you have already switched to UDP.

I think part of the problem is that you're using TCP on MacOS. There are=20
know issues with the TCP stack in 10.3 which lead to stalled connections.=
I see this when my laptop downloads EMail.

Take care,


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