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.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Dmitry Antipov <dmantipov <at> yandex.ru>
Cc: 15555 <at> debbugs.gnu.org
Subject: bug#15555: 24.3; Bidirectional display very slow with long lines
Date: Tue, 18 Feb 2014 18:21:10 +0200

> Date: Tue, 18 Feb 2014 18:01:05 +0400
> From: Dmitry Antipov <dmantipov <at> yandex.ru>
> CC: 15555 <at> debbugs.gnu.org
> 
> On 02/18/2014 04:43 PM, Dmitry Antipov wrote:
> 
> > Are you sure that bidi_copy_it doesn't add one more bottleneck to the whole
> > stuff?
> 
> There is a busy bidi_shelve_cache/bidi_unshelve_cache loop which processes
> ~1.5M of cache data per each iteration.

Where's that loop in the sources?

> That's why memcpy takes ~25% in the overall profile...

Why doesn't this happen in the other (smaller) file?
This bug report was last modified 2 years and 305 days ago.

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