Advances, Systems and Applications
From: An improved task assignment scheme for Hadoop running in the clouds
RPC = 4.0 | Total number of data blocks | ||||||
---|---|---|---|---|---|---|---|
VPPT = ± 10% | 3000 | 3500 | 4500 | 5500 | 6500 | 7500 | 8500 |
Number of blocks assigned according to the ECT rule | 645.2 | 1140.3 | 2138.2 | 3142.3 | 4140.6 | 5136.1 | 6139.9 |
MPCT of Hadoop (time units) | 256.0 | 254.7 | 219.7 | 195.9 | 190.5 | 177.8 | 169.0 |
MPCT of ECT (time units) | 155.5 | 147.8 | 139.5 | 134.2 | 129.9 | 127.4 | 125.9 |
ECT reduction in MPCT | 39.3% | 42.0% | 36.5% | 31.5% | 31.8% | 28.3% | 25.5% |
NBRP under Hadoop | 417.9 | 418.9 | 536.8 | 607.6 | 672.7 | 758.4 | 845.8 |
NBRP under ECT | 119.1 | 151.2 | 206.7 | 268.4 | 340.5 | 400.7 | 457.3 |
ECT reduction in NBRP | 71.5% | 63.9% | 61.5% | 55.8% | 49.4% | 47.2% | 45.9% |