NFS Performance Issue

Lin Jui-Nan Eric ericlin at tamama.org
Wed Nov 26 11:07:27 PST 2008


On Thu, Nov 27, 2008 at 2:29 AM, Claus Guttesen <kometen at gmail.com> wrote:
>> We recently found that the Performance of the NFS Client in FreeBSD is
>> worse than that in Linux.
>
> What OS is your nfs-server running?
Our NFS server is NetApp.
>
> You can ommit read- and write-size using tcp-mounts. From 'man mount_nfs':
>
>     -w      Set the write data size to the specified value.  Ditto the com-
>             ments w.r.t. the -r option, but using the ``fragments dropped due
>             to timeout'' value on the server instead of the client.  Note
>             that both the -r and -w options should only be used as a last
>             ditch effort at improving performance when mounting servers that
>             do not support TCP mounts.
>
> I have a solaris 9 nfs-server with vxfs and I used to mount using udp
> but then I ran into 'server not responding' and changed to
> tcp-nfs-mount instead. I just copied a 200 MB file to the nfs-server
> in 7.5 sec. which is 26.6 MB/s.
>
I'm trying to mount without read- and write-size now. Thank you!


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