[cairo] Progressive slowness

[Jeff Muizelaar]

On Thu, Oct 11, 2007 at 10:02:44PM +0200, Nicolas Rougier wrote:
> 
> Hi all,
> 
> I've been using cairo to do a very simple application in python: moving
> and zooming a box in a window. The app (see below) is ok but when I zoom
> in, the app is getting very slow and speed up again when I zoom out. I
> guess I did something wrong but I cannot find it. The only reason I see
> for the progressive slowness would be that I'm drawing part of the box
> far beyond the visible surface (when it's zoomed in) but I thought the
> clipping what responsible for handling such cases. Any idea ?
> 

Looks like a rasterization problem. fbRaserizeEdges is spending a lot
of time in the kernel page faulting, which is a little weird.

-Jeff