Re: Layer speedup

[Patrick Salecker <patty9999 gmx de>]

Am 25.08.2010 22:38, schrieb Jiří Techet:
> On Sun, Aug 22, 2010 at 11:12, Russell Strong<russell strong id au>  wrote:
>    
> > Hi,
> >
> > The following patch replaces marker sorting ( by latitude ) with
> > clutter's set_depth to achieve the same result.
> >
> > Using a modified animated-marker demo with 484 markers, this patch
> > reduces CPU using on my laptop from 80% to 19%.
> >
> > There is still more that can be done, but that's now in clutter, which
> > appears to be sorting a list every time a depth is changed.
> >
> > Any thoughts?
> >      
> Nice! I've just applied it. I haven't measured the performance myself
> but I believe your findings are correct and it's a nice simplification
> as well. The only thing I have changed is that the code didn't take
> into account the southern hemisphere where things are opposite - the
> more you go to the south, the farther the markers should be. But this
> bug was already present before your patch, I've just noticed it now.
>
> Thanks!
>
> Jiri
>    
Will these patches also be in the next 0.6 release?
I tried to add 3000 marker to a layer with libchamplain 0.6.1 and it 
took unusable 110 seconds.
After applying the patch it decreased to only 8 seconds.