GNU bug report logs - #17124
24.3.50; Occasional Extremely Slow Redraws in OSX Emacs

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Message #40 received at 17124 <at> debbugs.gnu.org (full text, mbox):

From: Eric Froemling <ericfroemling <at> gmail.com>
To: Jan Djärv <jan.h.d <at> swipnet.se>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 17124 <at> debbugs.gnu.org
Subject: Re: bug#17124: 24.3.50; Occasional Extremely Slow Redraws in OSX Emacs
Date: Fri, 27 Jun 2014 10:30:04 -0700

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I generally run into the slowdown maybe once every half-hour during real-world usage; a common trigger seems to be mouse clicks, drags, or scrolls, though I haven’t been able to pin down any predictable repro. cases aside from the shake-the-divider one.

As a janky workaround, I’ve found that switching to a different desktop and back during a slow redraw allows all the buffered draws to go through instantly; not sure if that implies anything useful.

-Eric

On Jun 27, 2014, at 10:13 AM, Jan Djärv <jan.h.d <at> swipnet.se> wrote:

> The "shake the divider" case becomes much worse, lots of flickering and incomplete text.
> Wheter it prevents the slow redraws in real usage is hard to tell.  It is not easily reproduced in normal Emacs usage.

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