How Nginx Was Able to Support 1 Million Concurrent Connections on a Single Server ✨

Nginx achieves high scalability by utilizing a master-worker model where workers handle client connections. Each worker is a separate process assigned to a CPU to minimize context switches and thread trashing. An event loop manages concurrent tasks asynchronously, aided by a thread pool for blocking tasks, and shared memory to efficiently manage cached data. This design enables Nginx to support up to 1 million concurrent connections efficiently.