Hi

We are serving some aerial images with the ImagePyramid plugin. Tiling was done 
with gdal_retile: 2000x2000px, Geotiff with LZW compression and alpha channel. 
Performance is really nice but from time to time it takes 10 or more seconds to 
deliver the wms request. This happens only when Geoserver has to use the 0 
level tiles where we have 11'144 tiles. Can the amount of tiles in one single 
directory be a issue? CPU load is not increasing during the request.

I'm running GeoServer 2.1.1 on a root server with 4 cores, enough memory and a 
software raid. Any guess what happens? Thanks.

Regards
Stefan



Freundliche Grüsse 
Stefan Ziegler 
Leiter amtliche Vermessung 

Amt für Geoinformation
Amtliche Vermessung 
Rötistrasse 4 
4500 Solothurn 

Telefon +41 32 627 75 96
Telefax +41 32 627 75 98 
[email protected]
http://www.so.ch 



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