[mapserver-users] Ed's Rules for the Best Raster Performance

Robert Sanson SansonR at asurequality.com
Mon Sep 15 16:01:50 PDT 2008


Has anyone tried Erdas Imagine .img files?
 
 
 
Robert Sanson, BVSc, MACVSc, PhD
Geospatial Services
AsureQuality Limited
PO Box 585, Palmerston North
NEW ZEALAND

Phone: +64 6 351-7990
Fax: +64 6 351-7919
Mobile: 021 448-472
E-mail: sansonr at asurequality.com 

>>> Gregor Mosheh <gregor at hostgis.com> 16/09/2008 10:57 a.m. >>>
Jim Klassen wrote:
> Just out of curiosity, has anyone tested the performance of Jpegs vs. GeoTiffs?

Yep. In my tests, GeoTIFF was the fastest format by some margin, even up 
to 2 GB filesizes. That was on 8-CPU machines, too. If you check the 
mailing list archive, you'll likely find the "papers" I posted to the 
list putting real numbers to it.

-- 
Gregor Mosheh / Greg Allensworth, BS, A+
System Administrator
HostGIS cartographic development & hosting services
http://www.HostGIS.com/ 

"Remember that no one cares if you can back up,
  only if you can restore." - AMANDA
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