You mention AIO in nginx. In 2021 somebody submitted a patch for io_uring support in nginx: https://mailman.nginx.org/pipermail/nginx-devel/2021-February/0138

You mention AIO in nginx. In 2021 somebody submitted a patch for io_uring support in nginx: https://mailman.nginx.org/pipermail/nginx-devel/2021-February/013860.html https://mailman.nginx.org/pipermail/nginx-devel/2021-Februar... I'm not sure if there has been further progress on it so far. In one comment feedback is "it doesn't seem to make the typical nginx use case much faster" [at that time]. But I find this interesting, because io_uring can make almost all things async that can't be used async so far in Linux (open(), stat(), etc) and thus in nginx. Would io_uring integration in nginx be relevant for you?