computation-friendly kernels

[Bob Arendt]

Bevan C. Bennett wrote:
> Yes, I've just been doing some basic profiling with 'time program' using 
> one specific multithreaded (Java-based) application with various input 
> files. To be more exact, I only see the differences on the largest of 
> these sample cases, less intensive runs show a smaller difference.

Might it be possible that you're seeing I/O subsystem differences, rather than
computational/scheduling effects?  What kind of split do you see if
something is largely compute-only vs. I/O-only (minimal computation).
-Bob Arendt