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Profiling Energy Usage of Web-Service Applications on Clusters

Energy saving is rapidly becoming one of the hottest topics in technology field within recent decades. With the development of technology, it brings a sheer increasing trend of data and the growth scale of clusters and data centers. Meanwhile, it also raises another essential issue into the path: energy cost. In this paper, we are diving into this key issue and evaluating energy- efficiency based on TPC-W benchmark: a notable web transaction e-commerce benchmark. We simulate the web transaction with different database sizes and collect the energy data by KILL-A-WATT. Also, we deploy this setup on four different cluster systems: PC nodes and wimpy nodes, and two different heterogeneous systems: using PC as front server and wimpy as Database server, and using wimpy as Web server and PC as Database server. Energy result demonstrates different characteristics among them, which can give lightening advice for future works in data center.