Re: [lkp-robot] [fs] 3deb642f0d: will-it-scale.per_process_ops -8.8% regression

Linus Torvalds
2018-06-22T10:05:30Z

On Fri, Jun 22, 2018 at 7:02 PM Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> Get your act together. Don't uglify and slow down everything else just
> because you're concentrating only on aio.

.. and seriously, poll and select are timing-critical. There are many
real loads where they show up as *the* thing in kernel profiles.

aio is a distant distant second cousin. You need to make sure poll and
select are prioritized, and aio should be a "if we can do this
cleanly" case.

Linus