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

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Message #125 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Gregory Heytings <gregory <at> heytings.org>
Cc: bug-gnu-emacs <at> gnu.org, monnier <at> iro.umontreal.ca
Subject: Re: bug#56682: Fix the long lines font locking related slowdowns
Date: Sat, 23 Jul 2022 22:12:27 +0300

> Date: Sat, 23 Jul 2022 19:05:54 +0000
> From: Gregory Heytings <gregory <at> heytings.org>
> cc: Stefan Monnier <monnier <at> iro.umontreal.ca>, bug-gnu-emacs <at> gnu.org
> 
> > My bet is indeed on the mere presence of text properties, plus the fact 
> > that we need to merge faces.
> 
> That's precisely what I've been investigating during the last day.  I 
> probably need two or three more days to reach a conclusion, so please tell 
> me if you're doing that in parallel.

I'm not.  I did the measurements, and so did Gerd, but I'm not looking
into the font-lock influence any deeper than that.

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