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

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Package: emacs;

Reported by: Gregory Heytings <gregory <at> heytings.org>

Date: Thu, 21 Jul 2022 18:01:01 UTC

Severity: normal

Done: Gregory Heytings <gregory <at> heytings.org>

Bug is archived. No further changes may be made.

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Message #152 received at 56682 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: gerd.moellmann <at> gmail.com, 56682 <at> debbugs.gnu.org, gregory <at> heytings.org,
 visuweshm <at> gmail.com
Subject: Re: bug#56682: Fix the long lines font locking related slowdowns
Date: Sun, 24 Jul 2022 18:07:23 +0300

> From: Stefan Monnier <monnier <at> iro.umontreal.ca>
> Cc: Gerd Möllmann <gerd.moellmann <at> gmail.com>,
>   56682 <at> debbugs.gnu.org,
>   gregory <at> heytings.org,  visuweshm <at> gmail.com
> Date: Sun, 24 Jul 2022 10:36:41 -0400
> 
> > redisplay are different.  When we find one such interval, it is
> > guaranteed to have changes only in the text properties that are of
> > interest to redisplay, but the search could take more time if there
> > are many text properties that are not interesting, because there are
> > more intervals to check.
> 
> Not only more intervals, but also more elements in the `plist`s of
> each interval.

Could be, if there are many different properties.  But since we are
talking about font-lock, there's only one we are talking about:
'face'.
This bug report was last modified 2 years and 8 days ago.

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