Energy proportionality for a server cluster means energy consumption is proportional to the workloads running on the cluster. One problem is that it is too costly, time-consuming, and complex to build a real cluster to evaluate energy-proportional algorithms. Aiming to solve this problem, we propose to build a prototype system that is able to simulate and test energy proportionality of a server cluster quickly and easily. Our system, named
Energy-Proportional Server Cluster Simulator
), allows users to configure a virtual server cluster and test energy proportionality on real traces continuously. We implement three energy-proportional algorithms in
and visualize the real-time results to evaluate time performance and energy consumption. New algorithms can be integrated into
and be compared with existing ones. We first describe the architecture and key designs of
. And finally, a case study of
demonstration is presented.