bug#57434: 28.1.91; Terminal Emacs Mac OS flickering.

[Dmitrii Kuragin]

And here's one more video of default `baud-rate` vs 1000000 https://youtu.be/51EbX6bNP0M

And here's a video how smooth vim works in the same setup: https://youtu.be/newP7XEA610

So, it is definitely not the terminal or Mac OS problem.

And here's a video when I use patched emacs with disabled insertion for mac os: https://youtu.be/_ZXpzF6KOEQ

Additionally, I want to say that now I see the problem even when I connect to a remote linux machine using SSH.

Could it be that alacritty so fast that it gets into the state when the emacs pointing is in an unsynced state with terminal frequency? 

Like, the issues we might have with frame rate of monitors and FPS within games.

On Wed, Aug 31, 2022 at 9:00 AM Dmitrii Kuragin <kuragin@google.com> wrote:

Sorry, but seems like it helped in some configuration, but when I tried it on my second monitor, it didn't work: https://youtu.be/IHzJ0QtuTgs

`baud-rate` improves the situation somehow, so that some portion of flickering disappears, but the issue is still there and looks the same that insertion over writing causes the issue.

On Wed, Aug 31, 2022 at 7:38 AM Gerd Möllmann <gerd.moellmann@gmail.com> wrote:

Dmitrii Kuragin <kuragin@google.com> writes:

> I do not know what it does, but it does help.
>
> I mean, it fixes the problem with flickering completely.

3 thumbs up :-)

>
> Could you please elaborate a bit more about possible consequences of that?

Baud-rate is the basis for cost calculations.  It basically specifies
how fast the communication with the underlying terminal is.  On slow
terminals Emacs tries harder to minimize communication, IIRC at the
expense of using slower capabilities.  It's all heuristics, though.

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*If you get an email from me outside of the 9-5 it is not because I'm always on or expect an immediate response from you; it is because of work flexibility.  Evening and weekend emails are a sign I allocated some regular working hours for other things (such as family, gym, friends,...).  And I encourage you to feel free to do the same.