[Twisted-Python] dramatic slowdown in pbbenchclient.py / pbbenchserver.py
James Y Knight
foom at fuhm.net
Wed Jan 26 16:32:40 EST 2005
On Jan 26, 2005, at 1:48 PM, russ wrote:
> The slowdown only appears between two different computers. If I run
> it on a single computer I get 700 cps. If I run it between two
> separate computers but with one or two simultaneous deferreds, then
> there's only a very minor slowdown. I'm running on windows 2000 with
> What do you think? Is this a strange behaviour of twisted or is there
> something screwed up with my networking?
It is possible this is due to the immediate-write behavior of twisted
1.3 combined with the TCP Nagle algorithm. You could try calling
transport.setTcpNoDelay(True) on both ends (the client and the server
end) to see if that helps.
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