modapi writes: "According to the EPA data centers — not including Google et. al, — are on track to double power consumption in the next five years. Forget about global warming, that is a lot of expensive power. Can we cut the power requirement? We could, if we had a way to reliably benchmark power consumption across architectures. Which is what JouleSort: A Balanced Energy-Efficiency Benchmark (PDF) by Suzanne Rivoire, Mehul A. Shah, Parthasarathy Ranganathan and Christos Kozyrakis tries to do. StorageMojo summarizes the key findings of the paper and contrasts it with the recent Google paper "Powering a warehouse-sized computer". The authors use the benchmark to design a power-efficient server and to consider the role of software, RAM and power supplies in power use."
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