I used this patch on my 3core machine. I got about 75% improvement (using 2/3 cores instead of 1/3 without patch). No problems so would be great to integrate this into main branch (with switch to enable it). Mark Burton wrote:
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 _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
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