Re: Make'em suffer!

[Federico Mena Quintero <federico ximian com>]

On Thu, 2006-08-17 at 14:13 +0300, Eero Tamminen wrote:

> Note: Deep widget hierarchies add noticable overhead because of size 
> request / allocate propagation.

Yeah, and that's going to be rather tricky to test...  Some widgets do
take a good amount of time in finding out their requisition
(GtkTextView); some others should be trivial (GtkImage).  Then you have
the overhead from the generic sizing mechanism.

Do you have profiles where the generic sizing code shows up as a
culprit?  I'd expect the problems to be in fat widgets like GtkTextView
and GtkTreeView...

> Btw. With large themes (hundreds of styles like in Maemo), binding the
> styles to a widget shows up clearly in profiler if you create for
> example a treeview with hundreds of items.

Oooh, interesting.  Do you have a profile?

[GtkCellRendererText does some stupid things like causing text to be
measured two or three times; see my old profiles for the file chooser
for the details.]

  Federico