On 20 Nov, 16:03, Krzysztof Retel <[EMAIL PROTECTED]> wrote: > Hi guys, > > I am struggling writing fast UDP server. It has to handle around 10000 > UDP packets per second. I started building that with non blocking > socket and threads. Unfortunately my approach does not work at all. > I wrote a simple case test: client and server. The client sends 2200 > packets within 0.137447118759 secs. The tcpdump received 2189 packets, > which is not bad at all. > But the server only handles 700 -- 870 packets, when it is non- > blocking, and only 670 – 700 received with blocking sockets. > The client and the server are working within the same local network > and tcpdump shows pretty correct amount of packets received. > > I included a bit of the code of the UDP server. > > class PacketReceive(threading.Thread): > def __init__(self, tname, socket, queue): > self._tname = tname > self._socket = socket > self._queue = queue > threading.Thread.__init__(self, name=self._tname) > > def run(self): > print 'Started thread: ', self.getName() > cnt = 1 > cnt_msgs = 0 > while True: > try: > data = self._socket.recv(512) > msg = data > cnt_msgs += 1 > total += 1 > # self._queue.put(msg) > print 'thread: %s, cnt_msgs: %d' % (self.getName(), > cnt_msgs) > except: > pass > > I was also using Queue, but this didn't help neither. > Any idea what I am doing wrong? > > I was reading that Python socket modules was causing some delays with > TCP server. They recomended to set up socket option for nondelays: > "sock.setsockopt(SOL_TCP, TCP_NODELAY, 1) ". I couldn't find any > similar option for UDP type sockets. > Is there anything I have to change in socket options to make it > working faster? > Why the server can't process all incomming packets? Is there a bug in > the socket layer? btw. I am using Python 2.5 on Ubuntu 8.10. > > Cheers > K
Stupid question: did you try removing the print (e.g. printing once every 100 messages) ? Ciao ---- FB -- http://mail.python.org/mailman/listinfo/python-list
