On May 30, 2010, at 18:31 , Zak Wilson wrote:

> I'm running Clojure code on an early Mac Pro with OS X 10.5 and Java
> 1.6. It has two dual-core Xeon 5150s and 5GB of memory.
Just a idea, two dual cores != 4 cores. Parallelism on more then one CPU is 
always slower then on one cpu with multiple cores, for the first seconds the 
process might not even get swapped to the second CPU at all. Perhaps that is 
why your speed gain isn't that high.

Try to take 10k instead of 5k for the tests, does that change anything?

Regards,
Heinz

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