[G4] OS X SMP

[sr ferenczy]

>
>> actually, if an application is not programmed to take advantage of 
>> having multiple threads, even os x cannot distribute the task to a 
>> different processor.
>
> True. What OS X does, however, is balance the load (app + all 
> background processes) on the two processors, which does provide a 
> performance benefit.
>

if you would have kindly quoted the rest of what i wrote, i included 
this information previously.


>
>> [...] the VT G5 cluster gets around 60% of the theoretical output, 
>> and they have 2200 processors (think of the over head on that)
>
> Does the VT cluster run Mac OS X -- and is it really relevant to our 
> issue?
>
> f

yes it does, and yes, i believe it is highly relevant. it is the 
largest working example of SMP we have on the macintosh, and i believe 
it shows how well the OS handles SMP.

http://www.apple.com/education/science/profiles/vatech/optimization.html

that link talks about the work in porting various drivers etc to os x 
for the cluster.


sandor
>