Workerman

Uses asynchronous event-driven I/O to handle thousands of concurrent connections efficiently, as evidenced by benchmarks linked in the README showing low latency and high throughput.

Built-in support for HTTP, WebSocket, SSL, and custom TCP/UDP protocols, with clear code examples for each in the README, enabling diverse network applications.

Provides coroutines for writing asynchronous code in a synchronous style and connection pooling for resources like databases, improving concurrency and performance, as shown in the Pool class examples.

Includes CLI commands for starting, stopping, reloading, and monitoring worker processes, simplifying deployment and maintenance without external tools.