On Fri, 17 Dec 1999, Sean Hunter wrote:
> Moving a thread to a different processor is almost always a loss in
> the real world (ie except for very long-lived threads with one thread
> per proc on an otherwise idle box), because it means that not only do
> you have the cost of migrating the process to the other processor, but
> you lose cache-affinity (you need to save and restore as much context
> as seperate processes whereas if they share a processor, all the
> ...
Well, OK, but this is quite a fundamental issue. I'm likely not getting
you very well -- do you mean, that when I run two threads process, both of
the threads will be run on same CPU (on MP, that is)? In other words,
threading doesn't take advantage of MP machines?
Bye Borek
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BOREK LUPOMESKY, network administrator University of J. E. Purkyne
Ceske mladeze 8
WWW: http://www.ujep.cz/~lupomesk/ Usti nad Labem, 40096
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