Tokio

The industry-standard asynchronous runtime for Rust, providing the building blocks for high-performance networking and reliable concurrency.

Tokio delivers a multi-threaded scheduler, a reactor for non-blocking I/O, and specialized timers to handle thousands of concurrent tasks with minimal overhead. It powers mission-critical infrastructure at companies like Discord and AWS (via Firecracker), offering sub-microsecond latency for network services. By leveraging Rust's ownership model, Tokio ensures thread safety while providing high-level abstractions like Channels for MPMC communication and Select for multiplexing asynchronous events.

https://tokio.rs