[OpenLayers-Users] More than 20 wms layers, performance issues, geowebcache concurrency

[Jørgen S. Nicolaysen]

You cat try some of these things. 

 * WMS layers has a buffer size of 2, that is the number of extra tiles that
will be downloaded around your map (outside visible map area) so you have a
nice margin when panning. Try setting this to 1 or 0. See doc for
OpenLayers.Layers.Grid. 

* Try using tile sizes of size 512px, this reduces number of http calls to
GWC/geoserver. GWC needs to be configured for this (I do not know how...). 






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