GNU bug report logs - #74281
30.0.91; font-lock mode hangs on scrolling large Scheme file

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Package: emacs;

Reported by: Divya Ranjan <divya <at> subvertising.org>

Date: Sat, 9 Nov 2024 16:06:01 UTC

Severity: normal

Found in version 30.0.91

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

Bug is archived. No further changes may be made.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Divya Ranjan <divya <at> subvertising.org>
Cc: monnier <at> iro.umontreal.ca, 74281 <at> debbugs.gnu.org
Subject: bug#74281: 30.0.91; font-lock mode hangs on scrolling large Scheme file
Date: Thu, 14 Nov 2024 13:42:18 +0200

> Date: Thu, 14 Nov 2024 11:09:41 +0000
> From: Divya Ranjan <divya <at> subvertising.org>
> CC: monnier <at> iro.umontreal.ca, 74281 <at> debbugs.gnu.org
> 
> > I don't understand the question: I thought I pointed at the possible cause by mentioning syntax-directed
> font lock?
> 
> I meant you said the emacs build is "unoptimized", what can be optimized?

No, it means the C files were compiled with -O0, which disables
compiler optimizations, so my Emacs is supposed to be slower than
normal.  And yet I seed no lags with C-n, unlike what you report.
This bug report was last modified 140 days ago.

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