The most reliable and efficient udp packet size?

Question

Would sending lots a small packets by UDP take more resources (cpu, compression by zlib, etc...). I read here that sending one big packet of ~65kBYTEs by UDP would probably

Answer 1

You're probably using the wrong protocol. UDP is almost always a poor choice for data you care about transmitting. You wind up layering sequencing, retry, and integrity logic atop it, and then you have TCP.