GNU bug report logs - #71644
30.0.50; Severe slowdown in larger files with markers beginning in emacs 29+

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From: Ihor Radchenko <yantar92 <at> posteo.net>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Mitchell <mitchellahren <at> gmail.com>, Eli Zaretskii <eliz <at> gnu.org>, 71644 <at> debbugs.gnu.org
Subject: bug#71644: 30.0.50; Severe slowdown in larger files with markers beginning in emacs 29+
Date: Tue, 25 Jun 2024 09:30:00 +0000

Stefan Monnier <monnier <at> iro.umontreal.ca> writes:

> One other thing I notice: If I use Emacs-29 but with Org-9.5.5 (i.e., the
> version included in Emacs-28.2) the recipe doesn't show the slowdown.
> ...
> If someone more familiar with the changes that occurred in Org around
> that time could try and track down the specific change that triggers the
> problem, that would be appreciated.

The biggest suspect is the fact that Org switched from overlay-based
folding to text property-based between Org 9.5 and Org 9.6.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>

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