On Fri, Dec 12, 2008 at 05:00:49PM +0200, Rahkonen Jukka wrote: > Hi, > > Are there any effective tricks for making MapServer to Top-Fuel class? > We have now a typical ms4w installation on a rather good server platform > with SCSI drives and 2 four-core processors running on Windows 2003 > server. Our images are tiled, uncompressed geotiffs with overviews, > vector sample data set is shapefile with shptree index. I have a > shortened epsg file and my mapfile is extra short. Bandwith is not the > limit. We are getting out now about 450 orthoimage pictures per minute > (size 500 by 500 pixels) and 550 pictures from the vector layer in png24 > image format. I consider that rather good, but we are required to reach > 20 images per second, thus 1200 images per minute or 0.05 seconds per > image. I wonder if anybody has tuned MapServer that far.
To get much beyond this, I'd simply recommend cached tiles: TileCache and GeoWebCache are both fine products that cache tiles on the fly. TileCache supports storing to memcached, and in-memory LRU cache, which allows you to keep limited resources for caching while serving tiles quickly. TileCache users have reported serving > 1200 tiles/second with TileCache properly configured, so if your data is seldom changing, it's probably possible to achieve a significant benefit from TileCache. Regards, -- Christopher Schmidt MetaCarta _______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users