GNU bug report logs - #15555
24.3; Bidirectional display very slow with long lines

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Package: emacs;

Reported by: Jerome L Quinn <jlquinn <at> us.ibm.com>

Date: Mon, 7 Oct 2013 20:25:01 UTC

Severity: normal

Merged with 3219, 4123, 9589, 13675, 18530, 22143, 24523, 30457, 32523, 40007

Found in versions 23.1, 24.2, 24.2.93, 24.3, 24.5, 26.0.91, 27.0.50, 28.0.50

Fixed in version 29.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

Full log

Message #62 received at 15555 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Dmitry Antipov <dmantipov <at> yandex.ru>
Cc: 15555 <at> debbugs.gnu.org, monnier <at> iro.umontreal.ca
Subject: Re: bug#15555: Re: bug#15555: 24.3;
 Bidirectional display very slow with long lines
Date: Tue, 18 Feb 2014 19:58:17 +0200

> Date: Tue, 18 Feb 2014 18:31:22 +0400
> From: Dmitry Antipov <dmantipov <at> yandex.ru>
> Cc: 15555 <at> debbugs.gnu.org
> 
> Now I'm seeing the use case where each trivial cursor movement causes
> ~100 calls to bidi_shelve_cache, and each call copies ~1.5M of data.

Is this still the same use case with your bug15555 function and the
4000.txt file?  If not, please describe this use case.

As for calls to bidi_shelve_cache, they are a side effect of saving
and restoring the iterator object, see the commentary before the
definition of the SAVE_IT macro.
This bug report was last modified 2 years and 356 days ago.

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