Liangxu Linux

Nov 4, 2025 · Fundamentals

Why a Single‑Threaded Event Loop Can Beat Multithreading: Exploring Coroutines and the Reactor Pattern

This article walks through serial file reading, thread‑based parallelism, event‑driven asynchronous I/O, callbacks, and finally shows how coroutines combined with an event loop provide a synchronous‑style solution that scales efficiently without the drawbacks of massive threading.