GNU bug report logs - #57207
29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling)

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From: Ihor Radchenko <yantar92 <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Gregory Heytings <gregory <at> heytings.org>, 57207 <at> debbugs.gnu.org
Subject: bug#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling)
Date: Mon, 15 Aug 2022 19:41:23 +0800

Eli Zaretskii <eliz <at> gnu.org> writes:

> Ihor, if you set long-line-threshold to a nil value, do the problems
> go away?

Yes.

> If they do, can you put a breakpoint in xdisp.c here:
> ...
>
> and see how frequently this gets called in the same buffer when you do
> whatever shows the performance degradation?

Could you please clarify what exactly do I need to look for? What do you
mean by frequency? Should I share some kind of gdb log?

-- 
Ihor Radchenko,
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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