Comparison of Performance of
Several Systems
Classifications of the 'standard' flight line C1 image has been done on several Macintosh computers to compare the relative performance of the systems. The Maximum Likelihood algorithm was used in the classification on an image with 12 channels, 949 lines and 220 columns. Nine classes were used. The classification results were written to a disk file; the classification was not listed in the output text window.
Note that the test is going to have to be modified. It is not 'difficult' enough for the new systems to indicate what the real comparisons are. A signficant part of the time in the test below is spent on I/O.
| System | Time (seconds) |
Comparison MacII/'system' |
Year Introduced |
MultiSpec Version |
|---|---|---|---|---|
| Mac II | 3360 | 1.0 | 1987 | 5/94 |
| HP-C110 with MAE3.0 | 1604 | 2.1 | 1996 | 2.13.97 |
| Mac IIfx | 973 | 3.5 | 1990 | 5/94 |
| Mac Quadra 660av | 737 | 4.5 | 1993 | 5/94 |
| Mac Quadra 840av | 463 | 7.0 | 1993 | 5/94 |
| Mac 6100 no cache | 60 | 56.0 | 1994 | 5/94 |
| Mac 8100/80av P601 | 45 | 75.0 | 1994 | 5/94 |
| 8100/80 P601 | 35 | 75.0 | 1994 | 9.27.95 |
| 7500/100 P601/no cache | 28 | 120.0 | 1995 | 9.27.95 |
| 8500/120 P604 | 21 | 160.0 | 1995 | 9.27.95 |
| 9500/133 P604 ??? | 25 | 134.0 | 1995 | 9.27.95 |
| 6400/200 P603e | 18 | 187.0 | 1996 | 1.23.97 |
| 8500/180 P604e | 12 | 280.0 | 1996 | 7.30.96 |
| 7300/200 P604e | 10 | 336.0 | 1997 | 6.6.97 |
| G3/266 G3 | 9 | 373.0 | 1998 | 1.16.98 |
| G3/400 G3 | 6 | 560.0 | 1999 | 3.26.99 |
| G4/450 G4 | 4 | 840.0 | 1999 | 11.17.99 |
| G5/2GHz | 1 | 3360.0 | 2004 | 7.19.05 |