io_uring

io_uring is a modern asynchronous I/O framework introduced in Linux 5.1, designed to provide high-performance, low-latency I/O operations. It is widely used in server-side game development to efficiently handle network and disk operations, making it ideal for real-time multiplayer games. Unlike epoll or traditional polling mechanisms, io_uring minimizes system calls by using a shared memory ring buffer between the kernel and user space, reducing context switching overhead. This results in improved scalability and responsiveness, allowing game servers to handle thousands of concurrent connections with minimal CPU usage.