kcp-go

Cache-friendly and memory-optimized design handles over 5,000 concurrent connections on a single commodity server, with benchmarks showing 128+ MB/s throughput in echo tests.

Integrated Reed-Solomon FEC trades 20-30% bandwidth overhead for reduced tail latency on lossy or long-haul links, as detailed in the design characteristics.

Supports multiple algorithms like AES, TEA, and Salsa20 with AEAD, ensuring packet anonymity and security; AES-128 is recommended for hardware acceleration via AES-NI.

Acts as a drop-in replacement for net.TCPConn, compatible with standard net.Conn and net.Listener interfaces, easing adoption in existing Go network stacks.