Changes between Version 5 and Version 6 of PerformanceTesting

Timestamp:

Mar 8, 2009, 3:07:54 PM (15 years ago)

Author:

jlacroix

Comment:

--

PerformanceTesting

@@ -14 +14 @@
 *** Only changed the MAP projection block to be "init=epsg:4326" instead of the projection string.
 }}}
+
+== Plan of Action ==
+
+ * For the EPSG code performance problem, FrankW is planning to implement some caching directly in PROJ.4. More details to come, but on the PROJ.4 side, not a lot directly in MapServer.
+ * With really large shapefiles, some profiling revealed that a lot of time is passed in msGetBit called by either msShapeFileLayerNextShape and msFilterTreeSearch. We acknowledge that the bit mask is not the optimal solution for very large shapefile (>3M features). the only thing we plan to do right now is to pass from a 8bit mask to a 32 bit mask.
 
 == Test machine ==