Skip to main content

Advances, Systems and Applications

Journal of Cloud Computing Cover Image

Table 10 Simulation results of highly heterogeneous environment

From: An improved task assignment scheme for Hadoop running in the clouds

  Scenario
One Two Three Four
RPC 1.5 2.5 4.0 1.0
VPPT ± 2.5% ± 5% ± 10% ± 2.5%
Average of Hadoop MPCT (time units) 124.7 156.4 204.5 108.1
Standard deviation of Hadoop MPCT (time units) 8.7 17.0 29.9 5.3
Average of ECT MPCT (time units) 109.5 122.1 135.6 100.5
Standard deviation of ECT MPCT (time units) 5.0 7.3 9.5 3.4
ECT reduction in average MPCT 12.2% 22.0% 33.7% 7.0%
Average NBRP under Hadoop 780.6 685.1 621.8
Standard deviation of NBRP under Hadoop 242.3 189.3 145.7
Average NBRP under ECT 691.6 469.7 287.7
Standard deviation of NBRP under ECT 195.4 151.6 113.1
ECT Reduction in Average NBRP 11.4% 31.4% 53.7%