[mkgmap-dev] Performance hints for Java JRE 9 + 10

From Gerd Petermann GPetermann_muenchen at hotmail.com on Wed May 16 14:53:02 BST 2018

Hi all,

it seems that the new Garbage Collector (G1GC) that was introduced with Java JRE 9 causes longer run times for splitter and mkgmap.
I've played with some options and found that the use of -XX:+AggressiveHeap seems to be a good idea when you use these newer JREs.

Without this option the java programs tend to allocate more memory and thus the OS might start to swap.

Gerd

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