Re: memory pressure with many widgets

On Mon, Feb 25, 2008 at 02:00:42PM +0000, David Powers wrote:
> Sample programs with LablGtk appear to slow down severely somewhere around
> 1000 widgets on screen (packed in a scrolling pane).  Some preliminary work
> with gprof and reading the source point to a global root (sometimes
> several?) allocated with each GObject that may be the issue.  That said,
> gprof isn't the sharpest tool, and there may be other factors.  Do people
> have any good general suggestions for handling large numbers of widgets
> using lablgtk?  Anything I should be specifically avoiding?

I've had this problem before, but it happened because there were two
many global roots -- 30,000 in my case because I was using a data
field in a GtkTreeView(?) widget.

It was an OCaml problem, nothing to do with lablgtk.  IIRC the fix was
to change the data field into a string and use a hashtable to map the
string to the actual object I was trying to store.

Rich.

-- 
Richard Jones
Red Hat