Re: speeding up GtkTreeView?

[Filip Van Raemdonck <mechanix debian org>]

Hi,

On Wed, Feb 12, 2003 at 07:16:49PM +0100, Joop Stakenborg wrote:
> Op wo 12-02-2003, om 12:19 schreef Filip Van Raemdonck:
> > On Tue, Feb 11, 2003 at 07:38:49PM +0100, Joop Stakenborg wrote:
> > > I have done a comparison between the deprecated GtkCList widget and the
> > > new GtkTreeView in gtk+-2.0. Loading 10.000 rows consisting of 3 columns
> > > each takes 0.3 seconds with GtkClist and 4.8 second with GtkTreeView.
> >
> > Be glad :-) When I fill a 2 column treemodel with ~10000 entries, at a
> > time the model has no view associated with it yet (so no rendering
> > slowness - have you tried filling on a disconnected model?), it takes
> > around 15 seconds on a pII 300, 96MiB memory. Granted, it may be a lowend
> > machine, but not using a treemodel I can fill in the same data in a custom
> > data storage model in around one second.
>
> So it's the renderer's slowness? I guess pango must be the bottleneck
> then.....

Not in my case, I was filling it before the renderer was involved at all.
I was only guessing at yours.

> > I think it would be very useful for the two standard treemodel
> > implementations to have an API to put in a custom underlying datamodel.
> > Right now those default models are really only useful with small data
> > sets. Anything serious brings them to their knees.
>
> I have read somewhere that writing your own renderer would be a
> solution. But I don't have clue how to go about.

I have only a little idea about that; but it wouldn't help me.


Regards,

Filip

-- 
I would like to think that I am not as dumb as a bag of hammers but facts
tend to implicate me as so being :-/
        -- anonymous