From: Multi-dimensional geospatial data mining in a distributed environment using MapReduce
Block size (MB) | Elapsed time (min) | Average map time (min) | Average shuffle time (min) | Average merge time (min) | Average reduce time (min) | Total mapping time (min) |
---|---|---|---|---|---|---|
16 | 4.7 | 2.4 | 2.0 | 0.0 | 0.1 | 3.3 |
32 | 4.1 | 1.1 | 1.3 | 0.0 | 0.3 | 2.8 |
64 | 4.5 | 1.8 | 1.0 | 0.0 | 0.3 | 2.8 |
96 | 5.8 | 2.4 | 2.9 | 0.0 | 0.1 | 4.5 |
128 | 6.4 | 3.2 | 4.6 | 0.1 | 0.1 | 5.3 |
256 | 8.0 | 4.3 | 6.1 | 0.0 | 0.1 | 6.8 |