On Fri, Jan 11, 2019 at 10:51 AM Roman Penyaev <[email protected]> wrote:
>
> Hi Jens,
>
> That is interesting. Recently I sent an rfc related to epoll uring:
>
> https://lore.kernel.org/lkml/[email protected]
>
> which can be mapped to userspace and all ready events can be consumed
> from it directly. I am wondering, is it possible to make some common
> API for all kind of ready events / urings, or it doesn't make any
> sense?
I think you can use the new IOCB_CMD_POLL from Christoph and avoid
epoll_wait() in favor of aio/io_uring interface, at least in new high
performance applications. Reaping events entirely in userspace (i.e.
performing io_getevents() without entering the kernel) has been
possible for a long time even with the existing aio interface.
Thanks,
Ilya
