On 8/2/2010 5:06 AM, Cédric MOULLET wrote:
Hello, We've got a 150 GB ECW dataset (aerial imagery) and the LAYER configuration uses a TILEINDEX. We can observe a WMS request time of about 3 seconds (on a server with this configuration: 7.5 GB RAM, 4 core, 64 bits / MapServer 5.4.3). I'd like to know if 3 seconds is considered as a normal response time for this kind of WMS request. What could be done in order to improve this performance (I'm aware of http://www.mapserver.org/optimization/raster.html) ? Thanks ! Cédric
Wow, that's a big file. Is that all in one file? I dont really know the answer, I've never used anything over 4 gig, but I do have a few questions:
1) I assume you are IO bound, do you have this on a raid, or something with fast IO? Can you check to see if you are CPU bound or IO bound?
2) if it is one big file, how would you feel about trying it broken up into smaller files?
-Andy _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
