>   A bit off-topic to this particular thread, but multithreading on a
> single-processor computer does not necessarily mean slower execution
> (even if by a really small margin). In fact, it may even mean slightly
> faster execution.
> 
>   Multi-threaded applications which perform calculations and lots of
> disk I/O might actually considerably benefit from multithreading even
> in a single-processor computer. This is because while one thread is
> waiting for disk I/O to complete, another thread can continue using
> the CPU. With one single thread the process would be stuck during I/O.

...which is, of course, the entire reason why multitasking operating 
systems were originally invented. :-)

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