[mkgmap-dev] Splitter r483 in refactoring2 branch

Fri Dec 2 16:21:30 GMT 2016

Hi all,

I think it is ready for a first public test .

Improvements:

1) Faster (esp. with large files), mostly because of an additional thread for OSM reade.

If you are interested, please play with the max-threads value. On my machine with a core i5 I see better results with max-threads=6

than with the default ("4 auto").

2) Splitting planet with a rather small max-nodes value like 800000 now stores ~ 41000 of possible 65535 entries,

with r442 I saw > 58.000. If you reach a value of > 60000  in one of the "number of area dictionary entries: xxxxx of 65535"

please contact the list. This limit may be increased to ~ 2^31 but with a larger memory footprint.

3) Some optimizations in the memory footprint of the custom maps may allow higher max-areas values.

I've changed the default for max-areas from 512 to 2048, this should work with typical PCs.

See http://www.mkgmap.org.uk/download/splitter.html

Gerd

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