Re: Terminal matrices

[Eli Zaretskii]

> From: Gerd Möllmann <gerd.moellmann@gmail.com>
> Cc: Emacs Devel <emacs-devel@gnu.org>
> Date: Sun, 19 Jan 2025 10:23:56 +0100
> 
> > That includes a memcpy of the glyphs. And in the worst of all cases,
> > say when using my full-screen eMacs on MacOS :-), this is in bytes on
> > my arm64
> >
> >   (* (frame-width) (frame-height) 56)
> >   743008
> >
> 
> With the attached file, I can see memcpy of 1Mb takes, best and worst
> time on my M1 pro
> 
> Time taken for memcpy: 245000 nanoseconds
> Time taken for memcpy: 385000 nanoseconds
> 
> to get an idea. Maybe I'm worrying to much?

Yes, I think you worry too much.  One third of a millisecond is
negligible.

But if it's possible to avoid this unless we actually have at least
one child frame, it would be even better, I think.