Table 4 The test results of a 4-GB file on different cores
No. P | Max Map time (seconds) | Reduce time (seconds) | General time (seconds) | Map SP | General SP |
|---|---|---|---|---|---|
1 | 901 | 120 | 1025 | 1.0 | 1.0 |
4 | 266 | 119 | 389 | 3.5 | 2.6 |
8 | 125 | 120 | 251 | 7.2 | 4.1 |
12 | 92 | 119 | 216 | 9.8 | 4.8 |
16 | 65 | 120 | 194 | 13.9 | 5.3 |
24 | 47 | 118 | 211 | 19.2 | 4.9 |
32 | 33 | 119 | 196 | 27.3 | 5.2 |