All,
i have been playing around with SCTP as transport for knet for a while
now, as a possibility to pipe DLM traffic via knet.
The PoC patch is working fine, but the performances vs UDP are rather
discouraging (at least using CPG bench), with SCTP being able to handle
just a bit more than 50% of UDP performances.
Before I invest too much time into it, the question become: do we really
care for a potential knet 1.0?
My take here is to either postpone or drop SCTP for now and re-evaluate
for 2.0. Idea here is being also able to make it easier to plugin
different network protocols. Right now the code is very much designed
around one single network protocol and the patch is very invasive in
some areas with little flexibility (meaning having to break API/ABI
every time we add a new protocol).
My suggestion would be to refactor the network code to be more modular
and after we have a more dynamic/better designed API/ABI, we can add N
protocols without suffering too much.
agree? disagree?
Fabio