Re: macOS metal rendering engine in mac port

[Eli Zaretskii]

> From: Aaron Jensen <aaronjensen@gmail.com>
> Date: Sat, 29 May 2021 00:01:31 -0700
> Cc: Alan Third <alan@idiocy.org>, emacs-devel@gnu.org
> 
> On Fri, May 28, 2021 at 11:07 PM Eli Zaretskii <eliz@gnu.org> wrote:
> >
> > > From: Aaron Jensen <aaronjensen@gmail.com>
> > > Date: Fri, 28 May 2021 15:07:27 -0700
> > >
> > > Eli, could you link me to the merge_face_ref optimization discussion
> > > so I could follow along please?
> >
> >   https://debbugs.gnu.org/cgi/bugreport.cgi?bug=41200
> 
> Thank you. Wow, that seems to make a huge difference in typing latency feel.

In "emacs -Q" as well?  If so, it again puzzles me how face merging
has such a profound effect on redisplay in your case.  It shouldn't.