> Hi, > > it is easy to change the HashMap<Long,Coord> coordMap in ElementSaver > to use the OSMId2ObjectMap that I've implemented for splitter. > This could reduce peak memory usage in mkgmap. > > A few numbers according to VisualVM: > 2.248.404 coord instances managed in the HashMap req. 186.447.135 bytes, > with OSMId2ObjectMap it is 57.194.684. > This doesn't include the memory that is needed to store the Coord instances > itself, > (which I think is 2.248.404 * 32 = 71.948.928 bytes) > it is just the overhead for the map. > > The disadvantage: OSMId2ObjectMap uses fastutil.jar, which is not used in > mkgmap > until now. I could try to change OSMId2ObjectMap so that it runs without > fastutil.jar, > but that would mean to invent the wheel again. > > Comments? > > Gerd >
Sounds good. I think it's ok to add the fastutil.jar to mkgmap. WanMil _______________________________________________ mkgmap-dev mailing list [email protected] http://lists.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
