>> Linux is smarter -- it automaticaly gives preference for the last CPU
>> used, without any special settings. Sometimes, however, if for some
>> reason the kernel or other threads need that specific CPU, Linux will
>> move the process. You win.
> Actually, NT does the same thing.
Nope. You set the affinity to CPU 0, 1, etc. The process will then
_only_ run on that specific CPU.
>>...
> have you actually tested this?
Start Prime95 at idle priority with CPU affinity set to one of the CPUs.
Start the "Tast Manager", choose "Performance" and look at the graphs.
One should be at 100%, the other close to 0%. Then start another process
at normal priority and see how the load of that process divides between
the CPUs, leaving one 50% idle while Prime95 stays on the single CPU it
has set affinity to (the other). I tried this on a Windows NT 4.00.1381
Service Pack 3 Terminal Server.
--
Sturle URL: http://www.stud.ifi.uio.no/~sturles/ Er det m}ndag i dag?
~~~~~~ - St. URLe
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