When raw throughput collides with real-world complexity, the fastest I/O model isn’t always the winner

Network Programming Battle: io_uring in Rust vs epoll in Go

When raw throughput collides with real-world complexity, the fastest I/O model isn’t always the winner

Two approaches to high-performance I/O: raw speed versus operational simplicity. Your production constraints determine which architecture wins, not benchmark numbers alone.

Our API gateway — handling 2.8 million requests per second across 47 microservices — was bleeding money. Each 1% latency improvement translated to $240K annually in infrastructure savings.…