Re: high latency NFS

[Lee Revell]

On Thu, Jul 24, 2008 at 1:11 PM, Michael Shuey <shuey@xxxxxxxxxx> wrote:
> NFS mount is tcp, version 3.  rsize/wsize are 32k.  Both client and server
> have had tcp_rmem, tcp_wmem, wmem_max, rmem_max, wmem_default, and
> rmem_default tuned - tuning values are 12500000 for defaults (and minimum
> window sizes), 25000000 for the maximums.  Inefficient, yes, but I'm not
> concerned with memory efficiency at the moment.

Try using UDP.  I had to move a 10TB+ data warehouse over a 100Mbit
WAN link not long ago and this was the only method that gave me close
to wire speed.

Lee
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/