On Tue, Feb 05, 2008 at 12:50:39PM -0500, Trond Myklebust wrote:
> On Tue, 2008-02-05 at 16:50 +0100, Frank van Maarseveen wrote:
> > Last time I checked (around 2.6.22) writing large files on NFSv3 over
> > UDP was 20% faster compared to TCP (Gb LAN with one switch connecting
> > all machines).
> > TCP and its timeout/retransmission behavior isn't always the best choice.
> If your environment has only 1 client working against a dedicated NFS
> server on a clean network, then that may indeed be the case, but as soon
> as you have more than 1 client, TCP almost always ends up outperforming
There are multiple clients (12 per physical server on average) but the
clients generally don't write (or read) at the same time. Anyway, I'll
keep this in mind.