Dual CPU Itanium II Results
Chart of a 2 CPU Itanium II with 1.6 GHz running Linux
Chart of a 2 CPU Itanium II with 1.6 GHz running FreeBSD
Conclusion
The Linux Itanium II shows the expected results, with the optimum number of threads starting at about 10, and the minmal time approx. 0.33% (1/3) of the maximal value for one thread.The BSD Itanium on the other hand shows a graph that is typical for systems under high load, FreeBSD is NOT 4 times slower than Linux. I've just included this result, because you might get similar ones and could draw the false conclusions from it.
PS: I'm adding a "real" graph for the dual Itanium II on FreeBSD soon.