Non-blocking UDP I/O vs blocking UDP I/O in Java

Question

Non-blocking TCP/IP SocketChannels and Selector in NIO help me to handle many TCP/IP connections with small number of threads. But how about UDP

Answer 1

Non blocking UDP is mostly useful on the receiving side. Packet sending can only be delayed due to local circumstances: local traffic shaping tools like "gaming network cards" that prioritize gaming traffic over other traffic sources, or overloaded network card (which is not likely to happen) can delay the sending of a packet. Once out of the system. Once the packet leaves the local interface, it's no longer the application's concern.