Some Benchmarks for 1 vs 2 cpus

I have attached the results of Xbench (http://xbench.com/) runs on an Aspire One OS X Kalyway with the vanilla 10.5.5 kernel and the Voodoo_beta2c kernel. There definitely seems to be some improvement with the Voodoo. I followed the instructions in the post viewtopic.php?f=14&t=6990#p46362 by number42bus to set up Voodoo.


Acer Aspire One with OS X Kalyway 10.5.5 Vanilla Kernel

Results 38.93
System Info
Xbench Version 1.3
System Version 10.5.5 (9F33)
Physical RAM 1536 MB
Model iMac7,1
Drive Type Hitachi HTS543216L9A300 Hitachi HTS543216L9A300
CPU Test 27.97
GCD Loop 58.79 3.10 Mops/sec
Floating Point Basic 18.34 435.82 Mflop/sec
vecLib FFT 23.31 768.84 Mflop/sec
Floating Point Library 34.97 6.09 Mops/sec
Thread Test 35.48
Computation 25.92 525.11 Kops/sec, 4 threads
Lock Contention 56.22 2.42 Mlocks/sec, 4 threads
Memory Test 77.41
System 69.76
Allocate 111.76 410.41 Kalloc/sec
Fill 84.15 4091.57 MB/sec
Copy 45.10 931.50 MB/sec
Stream 86.94
Copy 84.70 1749.49 MB/sec
Scale 83.31 1721.16 MB/sec
Add 98.66 2101.66 MB/sec
Triad 82.91 1773.58 MB/sec
Quartz Graphics Test 61.16
Line 54.54 3.63 Klines/sec [50% alpha]
Rectangle 54.39 16.24 Krects/sec [50% alpha]
Circle 48.31 3.94 Kcircles/sec [50% alpha]
Bezier 58.57 1.48 Kbeziers/sec [50% alpha]
Text 137.87 8.62 Kchars/sec
OpenGL Graphics Test 73.68
Spinning Squares 73.68 93.47 frames/sec
User Interface Test 24.44
Elements 24.44 112.15 refresh/sec
Disk Test 38.16
Sequential 69.95
Uncached Write 74.03 45.45 MB/sec [4K blocks]
Uncached Write 70.86 40.09 MB/sec [256K blocks]
Uncached Read 56.48 16.53 MB/sec [4K blocks]
Uncached Read 84.35 42.40 MB/sec [256K blocks]
Random 26.23
Uncached Write 9.10 0.96 MB/sec [4K blocks]
Uncached Write 63.51 20.33 MB/sec [256K blocks]
Uncached Read 62.25 0.44 MB/sec [4K blocks]
Uncached Read 93.07 17.27 MB/sec [256K blocks]


Acer Aspire One with OS X Kalyway 10.5.5 Voodoo Beta 2c Kernel


Results 44.60
System Info
Xbench Version 1.3
System Version 10.5.5 (9F33)
Physical RAM 1536 MB
Model iMac7,1
Drive Type Hitachi HTS543216L9A300 Hitachi HTS543216L9A300
CPU Test 28.68
GCD Loop 61.25 3.23 Mops/sec
Floating Point Basic 18.54 440.55 Mflop/sec
vecLib FFT 24.32 802.34 Mflop/sec
Floating Point Library 35.60 6.20 Mops/sec
Thread Test 51.45
Computation 43.63 883.86 Kops/sec, 4 threads
Lock Contention 62.69 2.70 Mlocks/sec, 4 threads
Memory Test 75.71
System 66.90
Allocate 100.31 368.36 Kalloc/sec
Fill 81.20 3948.02 MB/sec
Copy 44.33 915.71 MB/sec
Stream 87.19
Copy 86.09 1778.17 MB/sec
Scale 83.71 1729.45 MB/sec
Add 97.76 2082.60 MB/sec
Triad 82.72 1769.58 MB/sec
Quartz Graphics Test 63.00
Line 58.85 3.92 Klines/sec [50% alpha]
Rectangle 55.69 16.63 Krects/sec [50% alpha]
Circle 49.41 4.03 Kcircles/sec [50% alpha]
Bezier 59.21 1.49 Kbeziers/sec [50% alpha]
Text 137.31 8.59 Kchars/sec
OpenGL Graphics Test 76.76
Spinning Squares 76.76 97.38 frames/sec
User Interface Test 29.70
Elements 29.70 136.31 refresh/sec
Disk Test 37.20
Sequential 69.95
Uncached Write 73.86 45.35 MB/sec [4K blocks]
Uncached Write 71.28 40.33 MB/sec [256K blocks]
Uncached Read 56.15 16.43 MB/sec [4K blocks]
Uncached Read 84.69 42.57 MB/sec [256K blocks]
Random 25.34
Uncached Write 8.71 0.92 MB/sec [4K blocks]
Uncached Write 62.53 20.02 MB/sec [256K blocks]
Uncached Read 61.94 0.44 MB/sec [4K blocks]
Uncached Read 92.17 17.10 MB/sec [256K blocks]

 

More info to add to the above. I installed a maintenance program called iceClean and it showed the attached (scroll down) for the Voodoo kernel. Interesting that there is a comment that two processors are logically available but only 1 physically available. Not sure what that means as this is getting beyond my understanding. Hope this can help someone in determining if the chip is giving all it can.

 

The processor is giving its all. The 2 logical processors is the atom's hyperthreading meaning that there is an extra virtual processor not as fast as dual core but multithreaded just like dual core. The 1 processor is the single atom chip in your one.