[mkgmap-dev] Is index size really reduced with --road-name-config option?

Fri Jun 23 16:45:07 BST 2017

Alexandre Loss reported a reduction of 27 MB in index size for Brazil, 
but I don't see that effect. I did some test with Spain map, with the 
following results:
custom style, no road-name-config: 39.501.824 B
custom style+road-name-config: 39.567.360 B
default style, no road-name-config: 38.633.472 B
default style+road-name-config: 38.682.624 B
As you can see, index is even slightly larger with road-name-config. 
Maybe I missed something.
My command: java -Xmx2000m -ea -jar mkgmap.jar --bounds=bounds.zip 
--precomp-sea=sea.zip --route --latin1 --code-page=1252 
--country-name=ESPAÑA --country-abbr=ESP --area-name=España 
--family-name="OpenStreetMap España" --family-id=114 --product-id=1 
--series-name="OSM-España" --index --process-destination --process-exits 
--housenumbers --reduce-point-density=4 --add-pois-to-areas 
--link-pois-to-ways --location-autofill=is_in,nearest --drive-on=right 
--check-roundabouts --license-file=license_ODbL.txt 
--copyright-message="OpenStreetMap contributors, ODbL. See: 
http://www.openstreetmap.org/copyright" -c spain.args