...The network layer in Swoole is event-based and takes full advantage of the underlying epoll/kqueue implementation, making it really easy to serve millions of requests. Swoole 4.x uses a brand new engine kernel and now it has a full-time developer team, so we are entering an unprecedented period in PHP history which offers a unique possibility for rapid evolution.
MultiTCP is a benchmark environment for testing TCP congestion avoidance algorithms and other TCP enhancements. It uses the kernel logs to print out segments statistics and internal TCP variables, to analyze and understand Linux TCP behavior.