[Chameleon] Performance measuring question

[Gambin Dejan]

Paul,

Thanks, I'll try that...regarding Chameleon - I suppose there is not
much that can be done? Do you maybe suggest some hardware modifications
that could increase the speed?

dejan

> -----Original Message-----
> From: Paul Spencer [mailto:pspencer at dmsolutions.ca] 
> Sent: Wednesday, April 12, 2006 1:20 PM
> To: Gambin Dejan
> Cc: chameleon at lists.maptools.org
> Subject: Re: [Chameleon] Performance measuring question
> 
> 
> Dejan,
> 
> you 'might' get some performance gain out of building a 
> shptree index  
> for your shape file and perhaps tiling it ... not sure.  In general,  
> I would more likely suspect Chameleon since it produces quite heavy  
> load on the server.  Running php as a module should be possible, and  
> could give you some performance gain.
> 
> Cheers
> 
> Paul
> 
> On 12-Apr-06, at 6:14 AM, Gambin Dejan wrote:
> 
> > Hi list,
> >
> > I have finally finished my first serious Chameleon 
> application. It is 
> > working very good, but I would like to see if there are 
> possibly some 
> > performance problems that can be solved because I am 
> experiencing slow 
> > map drawing sometimes (when zooming in)....I'll try to be more
> > detailed:
> >
> > My current application has several layers of which the one 
> is raster 
> > layer defined over 12 tif files (40MB each) that I joined using 
> > tileindex..I have also internally tiled and created 
> internal overviews 
> > on each of the tif files...
> >
> > Next I have the main layer, that is roads...it is a LINE shape that
> > has
> > about 1MB (and its dbf has only 73KB with 247 records). 
> This layer is
> > also labeled with two lines, one is overlayed over the other...
> >
> > My questions are:
> >
> > 1. Since the data I presented shouldn't be "heavy" and assuming
> > testing
> > on my localhost - what can be the main reason for sometimes slow map
> > drawing? I am using JSAPI mode
> >
> > 2. How to debug it on Windows? How can I see what is causing this 
> > slowness? I would like to know if hardware is the reason (disk
> > subsystem
> > or RAM) or the application...
> >
> > 3. I have created my own buttons and icons...maybe they are
> > "heavy"? Are
> > they somehow cached? What about the caching anyway?
> >
> > Any suggestions are welcome
> >
> > Thanks very much
> >
> > regards, dejan
> >
> > _______________________________________________
> > Chameleon mailing list
> > Chameleon at lists.maptools.org 
> > http://lists.maptools.org/mailman/listinfo/chameleon
> 
> +-----------------------------------------------------------------+
> |Paul Spencer                           pspencer at dmsolutions.ca   |
> +-----------------------------------------------------------------+
> |Applications & Software Development                              |
> |DM Solutions Group Inc                 http://www.dmsolutions.ca/|
> +-----------------------------------------------------------------+
> 
> 
> 
> 
>