GNU bug report logs - #59530
29.0.50; Fontification hangs with C header file

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Package: emacs;

Reported by: Sujith Manoharan <sujith.wall <at> gmail.com>

Date: Thu, 24 Nov 2022 04:09:02 UTC

Severity: normal

Found in version 29.0.50

Done: Alan Mackenzie <acm <at> muc.de>

Bug is archived. No further changes may be made.

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Message #17 received at 59530 <at> debbugs.gnu.org (full text, mbox):

From: Sujith Manoharan <sujith.wall <at> gmail.com>
To: Alan Mackenzie <acm <at> muc.de>
Cc: 59530 <at> debbugs.gnu.org
Subject: Re: bug#59530: 29.0.50; Fontification hangs with C header file
Date: Sun, 27 Nov 2022 14:15:26 +0530

Alan Mackenzie <acm <at> muc.de> writes:
> I think the bug has already been fixed, coincidentally on Thursday, by
> the following commit to master:
>
> commit 3208a42c47c4f98cb03c4b15164ca83113244b40
> Author: Alan Mackenzie <acm <at> muc.de>
> Date:   Thu Nov 24 10:51:03 2022 +0000
>
>     CC Mode: Make it scroll fast over buffers with only #define's
>
> , committed just a few hours after you reported the bug.
>
> I have a test script which scrolls all the way through a file, timing
> how long it takes.  Before the above commit, it took ~1524 seconds on
> dce_12-0_sh_mask.h, after the commit, it took ~31.4 seconds.
>
> Would you please update your Emacs version, and see if this commit has
> indeed resolved the problem, then let us know.

This commit fixes the issue. It doesn't look like
fast-but-imprecise-scrolling is needed anymore at all.

Thanks !

Sujith
This bug report was last modified 2 years and 228 days ago.

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