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javamultithreadingperformancedatagram

DatagramSocket: queue output vs simple send

I'm programming an udp server. Right now, when it is necessary from client code to send data, every thread representing a "connection" sends a datagram to a blocking queue, and the server thread then reads every datagram and sends it.

Peeking into DatagramSocket.send i see it synchronizes over the datagrampacket, but i cannot tell if at the end of the day would be more performance-wise to queue everything vs directly sending it. With the latter i suspect i could use direct bytebuffers.

So my question is: Would it be more wise in terms of performance to queue everything or directly send it?

Solution

  • Just send it directly. The socket send buffer already is a queue. The complication of another queue and another thread adds no value at all. Just another thing to go wrong.