Author: Matthew Hull
Date: 10:14:45 12/05/03
Go up one level in this thread
On December 05, 2003 at 12:57:01, Andreas Guettinger wrote: >In case somebody is interested (and I highly doubt that) here are the values for >my PPC G4 (7400) Clock speed? >compiled with gcc -O3: > > magic bitscan 2980130816 43.370 > magic bitscan 2980130816 43.450 > magic bitscan 2980130816 43.390 > magic bitscan 2980130816 43.490 > ------------------------------ > table 16 2980130816 20.030 > table 16 2980130816 21.550 > table 16 2980130816 20.290 > table 16 2980130816 20.320 > ------------------------------ > gerd 2980130816 28.980 > gerd 2980130816 28.990 > gerd 2980130816 30.520 > gerd 2980130816 28.970 > ------------------------------ > eugene 2980130816 34.050 > eugene 2980130816 33.930 > eugene 2980130816 33.810 > eugene 2980130816 33.890 > ------------------------------ > eugene2 2980130816 23.080 > eugene2 2980130816 22.960 > eugene2 2980130816 22.970 > eugene2 2980130816 23.710 > >regards >andy > > > >On December 05, 2003 at 00:22:11, Russell Reagan wrote: > >>I found an old piece of code I had written to test the speed of a few >>bitscanning routines (ex. FirstOne() in Crafty). I was curious how different >>they would run on a 64-bit machine, so I sent them to Dr. Hyatt and he was kind >>enough to run them for me on the Opteron. Thanks Bob ;-) >> >>The source code of my program is below. The output of the program is in the >>form: <name of routine> <checksum> <seconds>. Lower times are better. >> >>Here are the results on my 32-bit 2GHz Athlon: >> >> magic bitscan 2980130816 11.987 >> magic bitscan 2980130816 12.207 >> magic bitscan 2980130816 12.338 >> magic bitscan 2980130816 12.448 >> ------------------------------ >> table 16 2980130816 7.250 >> table 16 2980130816 7.251 >> table 16 2980130816 7.140 >> table 16 2980130816 7.040 >> ------------------------------ >> gerd 2980130816 9.243 >> gerd 2980130816 9.264 >> gerd 2980130816 9.253 >> gerd 2980130816 9.273 >> ------------------------------ >> eugene 2980130816 7.201 >> eugene 2980130816 7.170 >> eugene 2980130816 7.190 >> eugene 2980130816 7.191 >> ------------------------------ >> eugene2 2980130816 7.230 >> eugene2 2980130816 7.261 >> eugene2 2980130816 7.250 >> eugene2 2980130816 6.780 >> >>Here are the results from the 1.8ghz Opteron: >> >> magic bitscan 2980130816 4.040 >> magic bitscan 2980130816 4.350 >> magic bitscan 2980130816 4.350 >> magic bitscan 2980130816 4.350 >> ------------------------------ >> table 16 2980130816 4.600 >> table 16 2980130816 4.820 >> table 16 2980130816 4.240 >> table 16 2980130816 4.340 >> ------------------------------ >> gerd 2980130816 5.790 >> gerd 2980130816 5.780 >> gerd 2980130816 5.440 >> gerd 2980130816 5.440 >> ------------------------------ >> eugene 2980130816 3.990 >> eugene 2980130816 3.960 >> eugene 2980130816 3.770 >> eugene 2980130816 3.470 >> ------------------------------ >> eugene2 2980130816 3.690 >> eugene2 2980130816 3.690 >> eugene2 2980130816 3.680 >> eugene2 2980130816 3.690 >>
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