I don't think anything's been underclocked. Just ran xbench before and after firmware. Admittedly I didn't restart before the first run, although I did quit all open apps, but it had been running all day, so that may explain some of the slower speeds:
BEFORE patch:
Results 198.35
System Info
Xbench Version 1.3
System Version 10.5.6 (9G3610)
Physical RAM 4096 MB
Model iMac9,1
Drive Type WDC WD1001FALS-40K1B0
CPU Test 173.76
GCD Loop 341.95 18.02 Mops/sec
Floating Point Basic 165.63 3.94 Gflop/sec
vecLib FFT 100.29 3.31 Gflop/sec
Floating Point Library 244.69 42.61 Mops/sec
Thread Test 361.88
Computation 400.81 8.12 Mops/sec, 4 threads
Lock Contention 329.85 14.19 Mlocks/sec, 4 threads
Memory Test 201.21
System 226.12
Allocate 276.71 1.02 Malloc/sec
Fill 194.44 9454.13 MB/sec
Copy 221.72 4579.52 MB/sec
Stream 181.25
Copy 171.72 3546.89 MB/sec
Scale 174.69 3608.97 MB/sec
Add 190.76 4063.67 MB/sec
Triad 189.41 4051.98 MB/sec
Quartz Graphics Test 245.22
Line 227.34 15.14 Klines/sec [50% alpha]
Rectangle 302.81 90.41 Krects/sec [50% alpha]
Circle 245.41 20.00 Kcircles/sec [50% alpha]
Bezier 239.29 6.04 Kbeziers/sec [50% alpha]
Text 225.50 14.11 Kchars/sec
OpenGL Graphics Test 229.74
Spinning Squares 229.74 291.43 frames/sec
User Interface Test 383.19
Elements 383.19 1.76 Krefresh/sec
Disk Test 92.91
Sequential 135.93
Uncached Write 168.43 103.41 MB/sec [4K blocks]
Uncached Write 162.11 91.72 MB/sec [256K blocks]
Uncached Read 80.51 23.56 MB/sec [4K blocks]
Uncached Read 204.14 102.60 MB/sec [256K blocks]
Random 70.57
Uncached Write 25.47 2.70 MB/sec [4K blocks]
Uncached Write 288.31 92.30 MB/sec [256K blocks]
Uncached Read 114.85 0.81 MB/sec [4K blocks]
Uncached Read 191.03 35.45 MB/sec [256K blocks]
AFTER patch:
Results 231.42
System Info
Xbench Version 1.3
System Version 10.5.6 (9G3610)
Physical RAM 4096 MB
Model iMac9,1
Drive Type WDC WD1001FALS-40K1B0
CPU Test 198.61
GCD Loop 342.75 18.07 Mops/sec
Floating Point Basic 166.23 3.95 Gflop/sec
vecLib FFT 139.89 4.61 Gflop/sec
Floating Point Library 246.40 42.91 Mops/sec
Thread Test 330.49
Computation 494.16 10.01 Mops/sec, 4 threads
Lock Contention 248.26 10.68 Mlocks/sec, 4 threads
Memory Test 203.97
System 233.08
Allocate 310.24 1.14 Malloc/sec
Fill 194.52 9458.03 MB/sec
Copy 221.88 4582.75 MB/sec
Stream 181.33
Copy 171.76 3547.64 MB/sec
Scale 174.84 3612.18 MB/sec
Add 190.88 4066.05 MB/sec
Triad 189.44 4052.63 MB/sec
Quartz Graphics Test 248.47
Line 228.96 15.24 Klines/sec [50% alpha]
Rectangle 302.27 90.24 Krects/sec [50% alpha]
Circle 244.58 19.94 Kcircles/sec [50% alpha]
Bezier 239.24 6.03 Kbeziers/sec [50% alpha]
Text 239.32 14.97 Kchars/sec
OpenGL Graphics Test 227.69
Spinning Squares 227.69 288.83 frames/sec
User Interface Test 391.24
Elements 391.24 1.80 Krefresh/sec
Disk Test 92.87
Sequential 137.45
Uncached Write 170.48 104.67 MB/sec [4K blocks]
Uncached Write 160.84 91.00 MB/sec [256K blocks]
Uncached Read 82.39 24.11 MB/sec [4K blocks]
Uncached Read 204.88 102.97 MB/sec [256K blocks]
Random 70.13
Uncached Write 25.23 2.67 MB/sec [4K blocks]
Uncached Write 292.98 93.79 MB/sec [256K blocks]
Uncached Read 112.34 0.80 MB/sec [4K blocks]
Uncached Read 196.21 36.41 MB/sec [256K blocks]
I'm one of those who just turned wifi off when the freezes began - didn't need it. I've turned it back on now, just to see what will happen, and will report in if I get a freeze.
