[mkgmap-dev] [PATCH v1] make maps in parallel

Mon May 11 16:47:19 BST 2009

FYI - a further test on the big box with all 16 cores in use showed a
speedup of 600% when processing a tiled map using 8 threads. I was
using a VM size of 1GB (not huge).

Choosing the number of threads to be 1/2 of the available cores appears to make
sense as the Java VM does use spare cores for other stuff (e.g. GC).

Cheers,

Mark