Re: Poor X performance

Lance Levsen wrote:
> I run a few tens of LTSP clients. The single biggest hit in performance
> comes from NFS over UDP. Conversely the single biggest boost in
> performance is shifting over to TCP.
>
> It depends on how you're setting up your ltsp systems, whether they are
> local boot/app/X, etc or if they're completely thin (mine are).
>
> If you're using dhcp for the thins then these two lines are invaluable
> in your subnet global area of dhcpd.conf.
>
> option option-128 e4:45:74:68:00:00;
> option option-129
> "MOPTS=nolock,ro,wsize=2048,rsize=2048,proto=tcp";

We've found some fairly substantial benefits running NFS with an
wsize/rsize set to 8K, and using jumbo frames.

Chris
Received on Mon Jan 14 16:01:16 2008