[OpenLayers-Users] Performance Issue with multiple layers

[bradleyspencer]

Marc,

You might also like to add buffer: 0 to reduce the number of surrounding
tiles for any given AOI. This kicks off less WMS requests for your overlays.

Cheers,

Brad

-----Original Message-----
From: Marc Desharnais [mailto:marc.desharnais at ec.gc.ca]
Sent: Monday, 6 August 2007 10:24 PM
To: users at openlayers.org
Subject: [OpenLayers-Users] Performance Issue with multiple layers

Hi all,

I don't know if it's normal, but my page using 7 layers is really slow.
I have to mention that the layers are not all activated. Only 2 of them
are shown of on the map.

Initial loading takes up to 30 seconds. Zooming to a particular area :
10 seconds.
And the CPU consumption of my workstation jumps up to 80% when loading
times. Is this normal?
Logically the workstation should not work really hard since it is
querying some PNGs... Am I wrong?

No server is on my workstation. The server and all the data used in the
layers is on LAN.

6 layers are colored points and one is a shapefile converted to postgis.

What is slowing down the process?


Thank you :)


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