Table 7 The comparison between average actual and estimated runtime
Input data size (GB) | WordCount Avg.Actual runtime(s) | WordCount estimated runtime(s) | Sort Avg.Actual Runtime(s) | Sort estimated runtime(s) | Inverted index Avg.Actual runtime(s) | Inverted index estimated runtime(s) |
|---|---|---|---|---|---|---|
1 | 178.98 | 158.84 | 98.93 | 101.77 | 274.33 | 260.31 |
2 | 380.04 | 321 | 159.44 | 180.03 | 621.51 | 700.47 |
3 | 696.33 | 704.93 | 368.19 | 349.18 | 1310 | 1329.06 |
5 | 1184 | 1200.03 | 614.86 | 646 | 2849.93 | 3011 |
10 | 2289.07 | 2398.68 | 1327 | 1308.59 | 4830.37 | 4103.51 |
20 | 4865.11 | 4991 | 2502.31 | 2643.26 | 8380 | 8166 |