Pretty much everything touches the disk at some point. A lot of those things are asynchronous daemons these days. They currently need a complex thread pool to h

Pretty much everything touches the disk at some point. A lot of those things are asynchronous daemons these days. They currently need a complex thread pool to handle disk I/O - io_uring means they can run disk I/O on the same thread, and all they have to do is some buffer management. It’s a lot simpler and cleaner a programming model. Source: recently developed a web server that uses io_uring.