Date Added: Oct 2011
In cloud computing systems, the energy consumption of the under-utilized resources accounts for a substantial amount of the actual energy use. Inherently, a resource allocation strategy that considers the resource utilization would increase the energy efficiency of the system. Task consolidation is an effective technique that increase the system resource utilization. Recent studies reported that energy consumption (in servers) scales linearly with (processor) resource utilization. The aforementioned fact highlights the significant contribution of task consolidation to reduce in turn the energy consumption of the system.