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

[Eli Zaretskii]

> From: Ken Raeburn <raeburn@permabit.com>
> Date: Sun, 27 Sep 2015 06:35:30 -0400
> Cc: 21473@debbugs.gnu.org
> 
> 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.

So you are saying that creating a tip frame is significantly different
in this regard from creating any "regular" frame?  If so, where are
the differences, wrt face realization and color allocation?