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11 May
2009
11 May
'09
3:47 p.m.
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