my quick comments:
- adding overviews with GDAL's 'gdaladdo' utility is very important
- I find your use of the word "pyramid" confusing (this seems to be a
word that Arc* users are familiar with but has no real meaning in the
MapServer world...I guess I've been on the "good" side for too long ha)
--
Jeff McKenna
FOSS4G Consulting and Training Services
http://www.gatewaygeomatics.com/
Brent Fraser wrote:
In honor of Ed's imminent retirement from the Mapserver Support Group,
I've put together "Ed's List for the Best Raster Performance":
#1. Pyramid the data - use MAXSCALE and MINSCALE in the LAYER
object.
#2. Tile the data (and merge your upper levels of the pyramid for fewer
files).
- see the TILEINDEX object
#3. Don't compress your data
- avoid jpg, ecw, and mrsid formats.
#4. Don't re-project your data on-the-fly.
#5. Get the fastest disks you can afford.
(Ed, feel free to edit...)
Brent Fraser
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