Research Article
A Firefly Colony and Its Fuzzy Approach for Server Consolidation and Virtual Machine Placement in Cloud Datacenters
Table 3
Server consolidation results for VM requirements with reference values as 25% and 45% and correlation coefficients as −0.072 and −0.052.
| | Reference value | | | | Correlation coefficient | −0.072 | −0.052 | | Algorithm | Number of physical machines used () | Average consolidation ratio | CPU execution time (S) | Number of physical machines used () | Average consolidation ratio | CPU execution time (S) |
| | Fuzzy firefly colony | 93 | 1.03 | 5.28 | 183 | 1.14 | 6.22 | | Firefly colony | 94 | 1.04 | 5.34 | 184 | 1.15 | 6.25 | | ACS | 95 | 1.05 | 5.31 | 185 | 1.15 | 6.27 | | MMAS | 97 | 1.07 | 5.22 | 187 | 1.16 | 6.49 | | FFD | 117 | 1.30 | 8.24 | 199 | 1.24 | 24.61 |
|
|
