[pygtk] gtkTreeView slows down application exit

[John Haiducek]

On Fri, 2010-11-12 at 12:02 +0100, Alessandro Dentella wrote:
> On Thu, Nov 11, 2010 at 06:51:38AM -0700, John Haiducek wrote:
> > I have an app that sometimes loads a lot of data into a gtkTreeView (several
> > thousand rows). It performs pretty well during user interaction, but if there
> > is a large amount of data in the treeview, it takes a really long time to exit.
> > 
> > I'm storing the data in a gtkListStore and a gtkTreeModelSort. I assume the
> > bottleneck is in freeing memory used by either the TreeView or the ListStore.
> > Is there any way to speed up destruction of these objects? Or am I
> > misinterpreting the symptoms here?
> 
> 
> I don't experiment this problem. Sqlkit is based on treeview that load and
> display data from a database table. The model has classes arranged by
> sqlalchemy and each cell renderer picks data from that object to represent
> it via a cell_data_func. 
> 
> I display foreign key  picking data from the related table so that loading
> data is somehow slowed down (2-10 seconds for 10.000 records depending on
> foreign keys). Destroying this table is done almost immediately, you don't
> perceive any significant delay.
> 
> I'm testing it on Ubuntu 10.04 running on a notebook 1.8 GHz centrino.

I wonder what's different. I'm running Ubuntu 10.04 also, on a
triple-core 1 GHz Phenom.

John