←back to thread

lsr: ls with io_uring

(rockorager.dev)
335 points mpweiher | 2 comments | 18 Jul 25 12:40 UTC | HN request time: 0s | source
Show context
Bender ◴[18 Jul 25 13:25 UTC] No.44604402[source]▶
I am curious what would happen if ls and other commands were replaced using io_uring and kernel.io_uring_disabled was set to 1. Would it fall back to an older behavior or would the ability to disable it be removed?
replies(2): >>44606541 #>>44606600 #
1. yencabulator ◴[18 Jul 25 16:26 UTC] No.44606600[source]▶
I just realized that one could probably write a userspace io_uring emulator in a library that spawns a thread to read the ringbuffer and a worker pool of threads to do the blocking operations. You'd need to get the main software to make calls to your library instead of the io_uring syscalls, that's it; the app logic could remain the same.

Then all the software wanting to use io_uring wouldn't need to write their low-level things twice.

replies(1): >>44609097 #
2. Asmod4n ◴[18 Jul 25 19:56 UTC] No.44609097[source]▶
I'm about to start something like this targetting epoll, poll, dispatch_io and maybe kqueue this weekend.