Re: How the long-lines "optimisation" breaks font locking.

[Dmitry Gutov]

On 05.08.2022 14:20, Eli Zaretskii wrote:
> Thanks.  Any improvements in font-lock of any major mode is welcome.
> If/when enough of them get their act together, we might revisit the
> default value of long-line-threshold, as I already said many times.

As I said, changing long-line-threshold's default is not the solution 
because this variable also determines when the fixes for the other 
redisplay logic come into play.

And those cause sluggishness more extensively and much earlier than 
font-lock becomes a problem.