In a single threaded flow your buffer pool is just the buffer you were given, and you don't return until the call completes. There are no actual concurrent call

In a single threaded flow your buffer pool is just the buffer you were given, and you don't return until the call completes. There are no actual concurrent calls in the ring. All you're doing is using io_uring to avoid syscall. Other replies lead me to believe it's not worth doing though, that it would not actually save syscalls and might make things worse.