GNU bug report logs - #56682
Fix the long lines font locking related slowdowns

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Message #889 received at 56682 <at> debbugs.gnu.org (full text, mbox):

From: Gregory Heytings <gregory <at> heytings.org>
To: Dmitry Gutov <dgutov <at> yandex.ru>
Cc: gerd.moellmann <at> gmail.com, 56682 <at> debbugs.gnu.org,
 Eli Zaretskii <eliz <at> gnu.org>, monnier <at> iro.umontreal.ca
Subject: Re: bug#56682: Fix the long lines font locking related slowdowns
Date: Thu, 04 Aug 2022 11:29:20 +0000

>
> So there is a particular performance problem with the display of 
> fontified buffers which I'd really like your help in fixing.
>

Thank you, but that problem has, as you can see, already been fixed.

>
> Fixing in a way that doesn't add narrowing around 
> fontification-functions, because as we can see it's not necessary in 
> examples like this.
>

As I said, your 88K example file is not representative.  So the fact that 
it's not necessary in that tiny example file says nothing about much 
larger files.

>
> I think we could have both speed and correctness, at least for files of 
> this size.
>

Feel free to enlarge long-line-threshold in your init file.

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