[OpenLayers-Dev] Bug #622 testing and performance issues

Christopher Schmidt crschmidt at metacarta.com
Wed Apr 4 00:19:19 EDT 2007


On Wed, Apr 04, 2007 at 12:15:59AM -0400, Christopher Schmidt wrote:
> On Wed, Apr 04, 2007 at 12:11:51AM -0400, Stephen Woodbridge wrote:
> > Christopher Schmidt wrote:
> > >Can anyone else reproduce this? Stephen, can you reproduce this in any
> > >other browser?
> > 
> > I tried IE6 and Opera 9 and it seems to work for these without the huge 
> > delays. The display of the zoom tool get weirded out in Opera, but that 
> > is probably not related to this problem.
> > 
> > I tried the Click to Algers and zoom out on my Win XP laptop and it 
> > seems to have the same performance problem. with 78.6% in destroy and 
> > 16.6% in nodeTypeCompare. Oh, and this system is running FF 1.5.0.11.
> > 
> > The only thing common about these two systems is that they both have 
> > 512MB of Memory. I notice that the memory usage in the task manager has 
> > a very strange usage pattern like a saw-tooth that repeats over and over 
> > while it is stuck in this state. The pattern follow this:
> > 
> >                - ~328 MB
> >  /|
> > / |
> >   |         /
> >   |---\     |  - ~100 MB
> >        \    |
> >         \  /
> >          \/    - ~46 MB
> > 
> > And this pattern just keeps repeating about 1-2 secs per interval if I 
> > recall correctly.
> 
> Okay. This is still insane -- I have no idea why your'e getting that
> function called at all, it makes no sense to me -- but I'll open up my
> Windows laptop at work tomorrow and get Firefox installed on it, and see
> if I can reproduce.

Just tested on Webkit Nightlies and Opera 9 with no problems here, for
what little it's worth.

Regards,
-- 
Christopher Schmidt
MetaCarta



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