bug#21473: 24.5; very slow tooltip display to sort-of-slow remote display

[Ken Raeburn]

> On Sep 26, 2015, at 03:03, Eli Zaretskii <eliz@gnu.org> wrote:
> 
>> From: Ken Raeburn <raeburn@permabit.com>
>> Date: Mon, 14 Sep 2015 04:13:41 -0400
>> 
>> (“spun off” from discussion in bug #11822 that was wandering off topic)
> 
> Given the latest changes wrt face realization, does this bug still
> need attention?  If so, could you provide an update regarding the
> portions that take the most time?

This one’s still basically unchanged. I just got 165 _XReply round-trip delays, 
with face realization color requests accounting for 60 of those, 
x_create_tip_frame initialization using “black” and “white” accounting for a 
dozen more, and other XParseColor or XAllocColor calls bringing it up to around 
100 (maybe fewer than last time, by just a few); 38 XSync calls, almost all for 
error catching. The other ~20% is XQueryColors, XListFonts, XGetWindowProperty, 
and a few other calls that need responses.

Ken