On Tue, Dec 1, 2009 at 9:02 AM, Anderson, Thomas B (IT Solutions) <[email protected]> wrote: > Would DTU performance increase if TCP parameters(Solaris 10) such as > TCP_DEFERRED_ACKS_MAX and TCP_LOCAL_DACKS_MAX were increased from their > default number of 4 to some greater number such as 8 or 16. Or would these > changes be needed only if the interface is trunked. I have measured a > significant throughput increase for other applications such as NetBackup > when there are multiple clients communicating with a server(trunked > interface).
With the possible exception of a Data Store resync at startup, Sun Ray doesn't do high-volume unidirectional data streaming over TCP, so I doubt that changing those tunables would produce a visible effect on the behaviour of Sun Ray. RDP does move its data over TCP, although (hopefully) not in anything close to the volume that something like NetBackup can generate. Likewise for over-the-network X11. It's possible that increasing those tunables could help those protocols. I'd be surprised if the difference was measurable, but if you feel like doing the experiment then I'd be interested to hear the results. (It's also possible that increasing these tunables could hurt, by delaying notification -- and therefore retransmission -- of lost segments. That's something to worry about if you're using RDP or X11over lossy connections.) OttoM. __ ottomeister Disclaimer: These are my opinions. I do not speak for my employer. _______________________________________________ SunRay-Users mailing list [email protected] http://www.filibeto.org/mailman/listinfo/sunray-users
