The async I/O model is one that NT had for all that time. The idea of using a ring data structure to do faster syscalls is what's new. io_uring represents bot

The async I/O model is one that NT had for all that time. The idea of using a ring data structure to do faster syscalls is what's new. io_uring represents both a pivot to an NT style I/O model (true async instead of readiness as in epoll) using a new syscall interface.