TABLE 18.10 Effects and Variation Explained in Garbage Collection Study
|
|
Factor
| Effect
| Percentage of Variation
| Confidence Interval
|
|
I
| 168.48
| 138.1
| (168.386, 168.573)
|
A
| 84.02
| 34.4
| (84.114, 83.927)
|
B
| 0.27
| 0.0
| (0.177, 0.364)
|
C
| 0.56
| 0.0
| (0.469, 0.656)
|
D
| 104.19
| 52.8
| (104.094, 104.281)
|
AB
| 0.23
| 0.0
| (0.323, 0.136)
|
AC
| 0.56
| 0.0
| (0.469, 0.656)
|
AD
| 51.31
| 12.8
| (51.406, 51.219)
|
BC
| 0.02
| 0.0
| (0.073, 0.114)a
|
BD
| 0.23
| 0.0
| (0.136, 0.323)
|
CD
| 0.44
| 0.0
| (0.344, 0.531)
|
ABC
| 0.02
| 0.0
| (0.073, 0.114)a
|
ABD
| 0.27
| 0.0
| (0.364, 0.177)
|
ACD
| 0.44
| 0.0
| (0.344, 0.531)
|
BCD
| 0.02
| 0.0
| (0.114, 0.073)a |
ABCD
| 0.02
| 0.0
| (0.114, 0.073)a
|
|
aNot significant.
EXERCISE
18.1 Table 18.11 lists measured CPU times for two processors on two workloads. Each experiment was repeated three times. Analyze the design.
TABLE 18.11 Data for 223 Experimental Design Exercise
|
|
Workload
| Processor A
| Processor B
|
|
I
| (41.16, 39.02, 42.56)
| (63.17, 59.25, 64.23)
|
J
| (51.50, 52.50, 50.50)
| (48.08, 48.98, 47.10)
|
|