Re: simplelist speed

[Dan Espen <dane mk telcordia com>]

Ross McFarland <rwmcfa1 neces com> writes:
> On Mon, 2005-01-03 at 21:57, Dan Espen wrote:
> > Hi,
> > 
> > I've ported a stock tracking program from gtk1 to gtk2.
> > The main part of the window has about 200 'markup' cells.
> > 
> > I needed to color the foreground of individual cells
> > and the background of some rows.  I used pango markup
> > for the foreground and cell_data_func to  color
> > the background.
> > 
> > On my 400MHz home machine, I can peg the CPU meter by
> > moving the pointer over the window.
> > When I switch to the desk that shows 2 instances of
> > this program the text takes about 5 seconds to appear.
> > 
> > If I disable the cell data func, its faster but not
> > by much, maybe 20%.
> > 
> > With Gtk1 Clists, I never saw any delays.
> 
> i would guess the slowdown is due to the ties that create SimpleLists,
> but i'm not certain. if that's the case the solution is not to use
> simple list. if you managed to do the custom coloring stuff you
> mentioned you shouldn't have too much trouble doing the liststore|view
> setup stuff yourself, just use SimpleList and the examples/tests to show
> the way. i would suspect this would do away with your slowdown. the
> other possibility would be the callback/signal wrapping code, but i'd be
> surprised if that was the bottleneck. using one of the perl profiling
> methods may give you an answer if simpler tests don't.

Guess I shouldn't have mentioned I figured out the color stuff.

I ran thru some of the examples, most of them exhibit the
pointer movement issue, which isn't a big problem for me,
it just doesn't seem right.  If you run one of these
things over a network, it causes a packet storm.

None of them had the slow refresh issue, but none of them
have 31x11 cells either.

I'll look at using a liststore|view.

Thanks
-- 
Dan Espen                           E-mail: dane mk telcordia com