GNU bug report logs - #9209
bidi slowdown

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Message #11 received at 9209 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: emacs user <user.emacs <at> gmail.com>
Cc: 9209 <at> debbugs.gnu.org
Subject: Re: bug#9209: bidi slowdown
Date: Sun, 31 Jul 2011 02:22:58 -0400

Please keep 9209 <at> debbugs.gnu.org on the CC list, so that this
discussion gets recorded in the bug tracker.

> Date: Sun, 31 Jul 2011 00:00:26 -0400
> From: emacs user <user.emacs <at> gmail.com>
> 
> I checked and it's perfectly OK near the beginning of the buffer, and
> very slow near the end.

OK.  Next, please tell which cursor keys are slow to respond.  Are C-f
and C-b slow?  Are left and right arrow significantly slower than C-f
and C-b?  What about C-n/C-p resp up- and down-arrows?  Finally, what
about PageUp/PageDown and C-v/M-v?

Please also try setting the variable bidi-paragraph-direction to
left-to-right, and see if that solves the problem.

Thanks.

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