Re: [Mldonkey-users] Re: mldonkey and online gaming

[Pierre Etchemaite]

Le Sat, 15 Mar 2003 13:35:17 +0100, Sven Hartge <address@hidden>
a écrit :

> And: You cannot modify your providers queue in the dial-in router, so
> while you can shape _your_ *outgoing* packets, you cannot do this for
> the packets being sent to you.

While shaping doesn't achieve miracles, it can help you there too.

wshaper is doing egress dropping, if you specify a correct limit slightly
below your downlink capacity (5% to 10% lower than your link capacity) it
should avoid any queuing in your downlink path, using TCP feedback mecanism.
No queuing, no need to shaping, and the latency should only increase by
something like half the time for receiving a full length packet (and the
time to reiceing a full length packet at worse).

Reality check seem to say it works well, unless they're lots of TCP
connections working at once (feedback not strong enough, or bad cases of
different connections synchronizing ? In the latter case, it could be
interesting playing to dropping algorithms like RED, that are supposed not
to synchronize connections TCP states).


BR,
Pierre.