Energy and Performance Efficient Underloading Detection Algorithm of Virtual Machines in Cloud Data Centers

The problem of high energy consumption is becoming more and more serious due to the construction of large-scale cloud data centers. Detecting and switching underloading hosts into sleep mode is the key approach to reduce energy consumption. In this paper, we propose Minimum Utilization with Threshold algorithm to reduce energy consumption and VLA violation. We use the simulator CloudSim in our experiment with our algorithm and have a significant reduction on both energy consumption and SLA violation based on our data.