Table 1. Gain in time D (percentage of one task) and speedup when the probability of invalid speculation is either 1/4, 1/2 or 3/4.
N | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
---|---|---|---|---|---|---|---|
D1∕4 | 0.75 | 1.31 | 1.73 | 2.05 | 2.29 | 2.47 | 2.6 |
S1∕4 | 1.6 | 1.78 | 1.77 | 1.7 | 1.62 | 1.54 | 1.48 |
D1∕2 | 0.5 | 0.75 | 0.875 | 0.938 | 0.969 | 0.984 | 0.992 |
S1∕2 | 1.33 | 1.33 | 1.28 | 1.23 | 1.19 | 1.16 | 1.14 |
D3∕4 | 0.25 | 0.312 | 0.328 | 0.332 | 0.333 | 0.333 | 0.333 |
S3∕4 | 1.14 | 1.12 | 1.09 | 1.07 | 1.06 | 1.05 | 1.04 |