[mkgmap-dev] Performance with zipped hgt files

Mon Jan 8 10:50:13 GMT 2018

Hi Gerd,

 > 2) reduce run time be storing more data in buffers

This is what I would chose. I think java x64 can use swap to increase 
heap size. And RAM memory is a relatively cheap upgrade.

 > I think NTFS compressed folder is a good compromise

I did it long time ago. Whole set of SRTM3 is about 38.3GB and takes 
23.1G on HDD. It is even better for Viewfinder Panoramas files, where 
44.3GB od HGT takes 13.8GB of drive space.

Another question, does mkgmap support non-standard HGT size? With 
BuildDemFile I use HGT with raster 76x76 for overview maps. It is faster.

-- 
Best regards,
Andrzej