bug#32932: 27.0.50; render bugs on macOS Mojave

[Aaron Jensen]

On Fri, Jan 31, 2020 at 12:26 PM Aaron Jensen <aaronjensen@gmail.com> wrote:
>
> On Fri, Jan 31, 2020 at 12:23 PM Alan Third <alan@idiocy.org> wrote:
> >
> > I’m thinking of time spent in functions during, perhaps the scroll
> > benchark, or just general use. I know it can be done through xcode and
> > I think gperftools perhaps works on macOS.
> >
> > Alternatively I may be able to do it. Is it just a matter of grabbing
> > the spacemacs config and using it, or do I need to do anything
> > further?
>
> I don't actually use spacemacs anymore, I have my own config, but I
> believe the slowness is reproducible in `emacs -Q` on my 4k monitor. I
> don't have that machine here, but I can verify it when I get home. If
> it is specific to my config, I can share it with you.

Hi Alan,

I just confirmed that it happens with emacs -Q. It's directly
proportional to the size of the window. The default window size is
pretty fast, but even a nearly blank buffer that's full screen lags
when the point moves.