bug#16594: 24.3.50; very slow redraw when resizing windows horizontally

[Darren Hoo]

Eli Zaretskii <eliz@gnu.org> writes:

>> Date: Fri, 31 Jan 2014 10:58:01 +0100
>> From: "Jan D." <jan.h.d@swipnet.se>
>> CC: Darren Hoo <darren.hoo@gmail.com>, 16594@debbugs.gnu.org
>> 
>> Eli Zaretskii skrev 2014-01-31 09:22:
>> 
>> > No, it's read-char and x_write_glyphs.  The latter calls the X server.
>> 
>> I got the impression he ran an NS build?  No X server involved.
>
> So what does x_write_glyphs etc. do in the NS build?

Maybe inverted call tree shows it clearer:

argb32_image_mark_rgb32.png
Description: argb32_image_mark_RGB32

Not sure whether it's related but someone says this:

http://lists.apple.com/archives/quartz-dev/2007/Nov/msg00113.html