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You are here: MacNN Forums > Software - Troubleshooting and Discussion > Applications > Virtual PC 7 = 700Mhz Pentium 3!

Virtual PC 7 = 700Mhz Pentium 3!
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Mar 12, 2005, 05:21 PM
 
Just installed Virtual PC 7 with windows xp pro on my 1.67Ghz powerbook. I then ran the "PiFast Challenge" from http://pifast.hexus.net/pifast.php This essentially computes Pi to a million decimal places. I got a time of 346seconds which is equivalent to a 700MHz P3! So the computational power of VPC7 seems to be very good!! I would be very interested if anyone else could post their results/machine speed running this....
(Last edited by richskl; Mar 12, 2005 at 06:54 PM. )
     
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Mar 12, 2005, 06:38 PM
 
Your link has an extra dot at the end.

Anyway, I just ran it.
Series computing time: 471.73
Division: 154.01
InvSqr: 184.50
Final time: 887.38

Whatever all that means. I'm running a Dual 867 with 512 RAM (320 dedicated to VPC).
     
richskl  (op)
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Mar 12, 2005, 07:02 PM
 
887s puts you at the level of a 233MHz Pentium II. I'm suprised you didn't get higher. I only give 160mb to VPC so it doesnt seem to be a memory difference. Personally I've found VPC math performance to be surprisingly good!
     
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Mar 13, 2005, 12:21 AM
 
makes me wonder if VPC7 was written with SMP in mind after seeing those results.
     
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Mar 13, 2005, 09:11 PM
 
Originally posted by si_lance:
makes me wonder if VPC7 was written with SMP in mind after seeing those results.
I think I know what happened. When the first number showed up, I opened up Firefox and did some other surfing before I realized the program was still running. I did it a second time without using any other programs and got a final score of 586.85. Much better than my original 887.38.
     
   
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