bug#64735: 29.0.92; find invocations are ~15x slower because of ignores

[Eli Zaretskii]

> From: Ihor Radchenko <yantar92@posteo.net>
> Cc: dmitry@gutov.dev, sbaugh@janestreet.com, 64735@debbugs.gnu.org
> Date: Thu, 20 Jul 2023 17:23:22 +0000
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> I am not sure if this specific issue is important.
> >> If we want to use find from Emacs, we would need to create Emacs
> >> string/strings when reading the output of find anyway.
> >
> > So how do you explain that using Find is faster than using
> > find-lisp.el?
> >
> > I think the answer is that using Find as a subprocess conses less.
> 
> No. It uses less excessive regexp matching Emacs is trying to do in
> file-name-handler-alist.

Where do you see regexp matching in the profiles you provided?