Tested Ubuntu +Debian (8 thread)
E3-1245 V2 @ 3.40GHz => 2.9 hpm, 3.1 hpm (32 gb ram)
E5620 => 2.3 hpm , 2.4 hpm (8 gb ram)
i7-2600 => 2.8 hpm , 2.9 hpm (16 gb ram)
8 core AMD Opteron 4171 => 0.9 hpm (14 gb ram)
8 core X5650 => 1.5 hpm (4 gb ram)
Dual L5639(total 12 core 24 thread ) => 5.5 hpm (24 gb ram) => 24 thread
Tested mac os x (8 thread)
i7-3770 => 3.4 hpm,3.5 hpm (8 gb ram)