Re: [linus:master] [fsnotify] a94204f4d4: stress-ng.timerfd.ops_per_sec 7.0% improvement

[Linus Torvalds]

On Wed, 5 Feb 2025 at 00:09, kernel test robot <oliver.sang@xxxxxxxxx> wrote:
>
> kernel test robot noticed a 7.0% improvement of stress-ng.timerfd.ops_per_sec on:

I have no idea what the heck that benchmark does, but I am happy to
see that this whole patch series did actually end up improving on the
whole fsnotify cost that I was ranting about in the original
submission.

Obviously this load doesn't actually do the new pre-event hooks, so it
seems to be all just about how fsnotify_file_area_perm() (or some
other fsnotify hook in the normal read() path) now isn't the
unconditional pig that it used to be.

I don't see how that would be worth 7%, but I'll happily take it.

              Linus