Research Article
Enhanced Virtualization-Based Dynamic Bin-Packing Optimized Energy Management Solution for Heterogeneous Clouds
| | Abbreviation | Definition | Equations (if any) |
| | Pi | Power value of server i | — | | CPUi | Computing value of server i | — | | CPUvj | Computing value of VM j | — | | Ui(F,t) | Computing capacity utilization factor of server i as a function of placement “F” and time “t” | Ui(F,t) = (CPU_utili)/(CPUi) [27] | | Pi(F,t) | Utilized power of ith server | Total power consumption = ∑ Pi(F,t)
for i = 1 to N,
where Pi(F,t) = 0.7 Pi + (0.3 PiUi(F,t)) for ith server [27] | | Tvmj | Execution time by jth VMs | — | | Res_util | Average resource utilization of data center | Res_util = ∑Res_utili for i = 1 to N [27]
Res_utili =
| | S | Fixed interval of time, where S = 10 s | — | | Tvm_maxi | Maximum time used by any VM in ith run | — | | Makespan | Duration between first job submission and last job completion | Makespani = [27] |
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