Paul Sijben wrote: > I am stumped by the following problem. I have a large multi-threaded > server accepting communications on one UDP port (chosen for its supposed > speed). > > I have been profiling the code and found that the UDP communication is > my biggest drain on performance! Communication where the client and the > server are on the same machine still takes 300ms or sometimes much more > per packet on an Athlon64 3000+ running Linux (Fedora Core 5 x64).
[snip] > buf, address = socket.recvfrom(8192) I'm not an expert here, but I AFAIK UDP packet size should be kept below 512 bytes otherwise it can cause fragmentation and hence all the slow stuff like acknoledgements, timeouts, etc... -- http://mail.python.org/mailman/listinfo/python-list
