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You are here: MacNN Forums > Software - Troubleshooting and Discussion > macOS > I thought OSX was multiprocessor-aware, but...

I thought OSX was multiprocessor-aware, but...
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Gulliver64
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Mar 11, 2002, 05:04 PM
 
...obviously it is not. Running SETI@home in the background and playing Civilization III, the game comes almost to a halt. In OS 9 this is no problem. From Apples advertising I thought that OSX would assign one program to each processor. BTW - rendering 8 clips in iMovie (4 minutes total) is much faster in OS 9 than in OS X 10.1.3.
Apple - whats up with the promoted multi-processor-awarness? Just a marketing-gag!!!
     
starfleetX
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Mar 11, 2002, 05:06 PM
 
I think your Mac be broke!

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Guy Incognito
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Mar 11, 2002, 05:28 PM
 
Originally posted by Gulliver64:
<STRONG>...obviously it is not. Running SETI@home in the background and playing Civilization III, the game comes almost to a halt. In OS 9 this is no problem. From Apples advertising I thought that OSX would assign one program to each processor. BTW - rendering 8 clips in iMovie (4 minutes total) is much faster in OS 9 than in OS X 10.1.3.
Apple - whats up with the promoted multi-processor-awarness? Just a marketing-gag!!!</STRONG>
Fire up 'CPU Monitor' and check what the second processor is doing...if the computer recognizes the second processor at all.
     
Gulliver64  (op)
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Mar 11, 2002, 05:36 PM
 
Originally posted by Guy Incognito:
<STRONG>

Fire up 'CPU Monitor' and check what the second processor is doing...if the computer recognizes the second processor at all.</STRONG>

It does recognize the second processor. When running SETI@home alone CPU-monitor shows 100% load on both processors and process-viewer says 164% CPU-usage. AppleHardwareTest says everything is o.k.
     
CharlesS
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Mar 11, 2002, 05:41 PM
 
Originally posted by Gulliver64:
<STRONG>


It does recognize the second processor. When running SETI@home alone CPU-monitor shows 100% load on both processors and process-viewer says 164% CPU-usage. AppleHardwareTest says everything is o.k.</STRONG>
Sounds like your problem isn't that OS X isn't multiprocessor-aware, but that SETI@Home is...

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SYN
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Mar 11, 2002, 06:11 PM
 
seti isn't mp aware, are you running two instances of it? If so, try renicing it to 19.
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iamnotmad
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Mar 11, 2002, 06:56 PM
 
yeah, you should set nice to 19, that way it only runs when there are idle cycles. Also, run two to use both procs with Seti. If you are only running 1 and your cpu usage is at 164%, youve got something else sucking proc time. not your one instance of seti.
     
DevNine
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Mar 11, 2002, 06:59 PM
 
The operating system is smp aware.However civ 3 aint.That's your problem.
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