Subject: Re: bug#66288: 29.1; Performance regression using pipe for subprocess

From: Eli Zaretskii <[email-masked]>
Date: Wed, 04 Oct 2023 09:55:50 +0300

> Date: Tue, 03 Oct 2023 20:58:17 +0000
> From: Gregory Heytings <[email-masked]>
> cc: Dmitry Gutov <[email-masked]>, [email-masked], 
>     [email-masked], [email-masked]
> 
> > The usual suspect -- long-line optimizations --
> >
> 
> "Usual suspect"???

What other significant changes in redisplay, with a potential effect
on performance, were made in Emacs 29?

> The culprit here is a947c10d90.

Thanks.