* Jie Chen <chen@jlab.org> wrote:

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> The following is pthread_sync output for 2.6.21.7-cfs-v24 #1 SMP 
> kernel.

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> 2 threads:

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> PARALLEL time =       11.106580 microseconds +/- 0.002460
> PARALLEL overhead =    0.617590 microseconds +/- 0.003409

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> Output for Kernel 2.6.24-rc4 #1 SMP

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> PARALLEL time =              19.668450 microseconds +/- 0.015782
> PARALLEL overhead =           9.157945 microseconds +/- 0.018217

ok, so the problem is that this PARALLEL time has an additional +9 usecs 
overhead, right? I dont see this myself on a Core2 CPU:

PARALLEL time =                           10.446933 microseconds +/- 0.078849
PARALLEL overhead =                       0.751732 microseconds +/- 0.177446

	Ingo
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