> However, latency introduced by system calls is significant. io_uring was introduced to attack this too and essentially is an async, queue-based, batched sysc

> However, latency introduced by system calls is significant. io_uring was introduced to attack this too and essentially is an async, queue-based, batched syscall interface eliminating a lot of that latency overhead. With polling mode you only have to do a syscall when both the application and the kernel are out of work.