[mkgmap-dev] memory requirements for generating planet bounds

as per http://wiki.openstreetmap.org/wiki/Mkgmap/help/options#Using_preprocessed_bo... , i tried to generate bounds myself from a planet boundary extract (prepared with osmconvert/osmfilter like in the instructions on the same page). java -cp mkgmap.jar uk.me.parabola.mkgmap.reader.osm.boundary.BoundaryPreprocessor <inputfile> <boundsdirectory> that run out of the heap space of 2300 megs. before i try experimenting further, how much heap space is required for creating planet bounds from boundary extract ? :) -- Rich