A Firefly Colony and Its Fuzzy Approach for Server Consolidation and Virtual Machine Placement in Cloud Datacenters

Table 9

Comparison of the multiobjective firefly and fuzzy firefly technique with other algorithms for average power consumption and resource wastage of VM requirements with reference values as 25% and 45% and correlation coefficients as 0.371 and 0.398.

Reference value
Correlation coefficient	0.371				0.398
Algorithm	Power (W)	Resource wastage	Fuzzy fitness (10^−3)	CPU execution time (S)	Power (W)	Resource wastage	Fuzzy fitness (10^−3)	CPU execution time (S)
Fuzzy firefly colony	17980	3.46	916	5.31	27980	4.86	934	6.25
Firefly colony	18200	3.58	908	5.35	28200	5.75	921	6.21
ACO	18215	3.61	884	5.34	28365	5.86	849	6.34
MMAS	19016	3.94	872	5.68	29316	5.89	856	6.42
FFD	21871	18.23	742	7.86	33654	30.18	776	21.12