The logarithm transformation is just one of numerous other possible transformations. For a discussion of other possible transformations, see Chapter 15.
TABLE 21.18 Measured Execution Times for the Intel iAPX 432 Study
|
|
|
|
|
| Workload Execution Times
|
System
|
|
| Word
|
|
No.
| Processor
| Language
| Size
| 484
| Sieve
| Puzzle
| Acker
|
1
| VAX-11/780
| C
| 32
| 1.4
| 250.0
| 9,400.0
| 4,600.0
|
2
|
| Pascal (UNIX)
| 32
| 1.6
| 220.0
| 11,900.0
| 7,800.0
|
3
|
| Pascal (VMS)
| 32
| 1.4
| 259.0
| 11,530.0
| 9,850.0
|
|
4
| 68000 (8 MHz)
| C
| 32
| 4.7
| 740.0
| 37,100.0
| 7,800.0
|
5
|
| Pascal
| 16
| 5.3
| 810.0
| 32,470.0
| 11,480.0
|
6
|
| Pascal
| 32
| 5.8
| 960.0
| 32,520.0
| 12,320.0
|
|
7
| 68000(16 MHz)
| Pascal
| 16
| 1.3
| 196.0
| 9,180.0
| 2,750.0
|
8
| Pascal
| 32
| 1.5
| 246.0
| 9,200.0
| 3,080.0
|
|
9
| 8086(5 MHz)
| Pascal
| 16
| 7.3
| 764.0
| 44,000.0
| 11,100.0
|
|
10
| 432
| Ada
| 16
| 35.0
| 3,200.0
| 350,000.0
| 260,000.0
|
11
|
| Ada
| 16
| 14.2
| 3,200.0
| 165,000.0
| 260,000.0
|
12
|
| Ada
| 32
| 16.1
| 3,200.0
| 180,000.0
| 260,000.0
|
|
Data from Hansen et al. (1982). Reprinted with permission.
TABLE 21.19 ANOVA Table for the Intel iAPX 432 Study
|
|
| Sum of
| Percentage of
| Degrees of
| Mean
| F-
| F-
|
Component
| Squares
| Variation
| Freedom
| Square
| Computed
| Table
|
|
y
| 576.64
|
|
|
|
|
|
| 449.01
|
|
|
|
|
|
|
| 127.63
| 100.0
| 47
|
|
|
|
Workloads
| 113.01
| 88.5
| 3
| 37.7
| 1158.5
| 2.3
|
Systems
| 13.55
| 10.6
| 11
| 1.2
| 37.9
| 1.8
|
Errors
| 1.07
| 0.8
| 33
| 0.03
|
|
|
|

FIGURE 21.5 Confidence intervals for effects in the Intel iAPX 432 study.