An Energy and SLA-Aware Resource Management Strategy in Cloud Data Centers

Table 4

Characteristics of 10 days’ workload traces (based on CPU utilization).

Date	Num. of VMs	Mean (%)	SD (%)
March 3, 2011	1052	12.31	17.09
March 6, 2011	898	11.44	16.83
March 9, 2011	1061	10.70	15.57
March 22, 2011	1516	9.26	12.78
March 25, 2011	1078	10.56	14.14
April 3, 2011	1463	12.39	16.55
April 9, 2011	1358	11.12	15.09
April 11, 2011	1233	11.56	15.07
April 12, 2011	1054	11.54	15.15
April 20, 2011	1033	10.43	15.21