bug#19266: 24.4; Font-related window redrawing delays on OS X

[Eli Zaretskii]

> Date: Fri, 12 Dec 2014 04:33:06 -0500
> From: Kirill Ignatiev <kirill.ignatiev@gmail.com>
> Cc: Eli Zaretskii <eliz@gnu.org>, Dmitry Antipov <dmantipov@yandex.ru>, 
> 19266@debbugs.gnu.org
> 
> I tried unicode-fonts now, and it does seem to fix the delays. Thanks!
> But I still think there's a problem: my configuration, which led to
> these delays, and my other example with one default font and one
> special font for uncommon symbols, are both perfectly ordinary and
> simple configurations. I'd say they shouldn't cause these kinds of
> problems at all. In particular, unicode-fonts is not actually part of
> emacs, so it's reasonable to expect emacs to work well enough without
> it.

You are encouraged to continue investigating this problem and
reporting your findings here.  It's quite possible that there's
something we need to fix, as the font releasing process was changed
lately, and could likely need improvements.

Thanks.