“…Power/energy aware approaches can also be classified according to the different resource types, such as CPUs [45,117], memory [84], storage devices [118], and/or network [30]. Since CPUs usually acquire the highest power consumption among all resource types [115], we focus on reviewing the works that focus on improving power consumption and energy cost of CPUs in cloud data centers using techniques including Dynamic Voltage Scaling and Dynamic Frequency Scaling (DV S/DFS), virtualization, and server consolidation [119].…”