Jens Axboe on Nostr: And finally, added support for registered waits, where copying data structures for ...

And finally, added support for registered waits, where copying data structures for high frequency waits can be quite costly. In zero-copy tx/rx testing, eliminating as much as 3.5-4.5% of overhead. Details:

https://lore.kernel.org/io-uring/20241022204708.1025470-1-axboe@kernel.dk/T/#m2d1eb2cc648b9f9c292fd75fc6bc2a8d71eadd49

Kernel tree:

https://git.kernel.dk/cgit/linux/log/?h=io_uring-reg-wait