Re: macOS metal rendering engine in mac port

[Eli Zaretskii]

> From: Aaron Jensen <aaronjensen@gmail.com>
> Date: Sun, 23 May 2021 11:38:22 -0700
> Cc: Alan Third <alan@idiocy.org>, emacs-devel@gnu.org, 
>       YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
> 
> > Is this in "emacs -Q"?  And which file and in what major mode did you
> > scroll through?
> 
> No, it was in my config. In emacs -Q the difference isn't as stark and
> it's quite a bit faster which has me wondering what the heck in my
> config could slow things down that much.
> 
> line numbers: 1.54s
> no line numbers: 1.37s

Still too much.  What mode of display-line-numbers do you use? is it
the default or something else?

> The file is a private ruby file that's copy pasted enough times to
> make it 11k lines long. I was using enh-ruby-mode with my config but
> regular ruby-mode doesn't make any difference.

Try with xdisp.c, that's what I was using.