CoolBudget: Data center power budgeting with workload and cooling asymmetry awareness

Power over-subscription challenges and emerging cost management strategies motivate designing efficient data center power capping techniques. During capping, provisioned power must be budgeted among the computational and cooling units. This work presents a data center power budgeting policy that simultaneously improves the quality-of-service (QoS) and power efficiency by considering the workload- and cooling-induced asymmetries among the servers. Proposed policy finds the most efficient data center temperature and the power distribution among servers while guaranteeing reliable temperature levels for the server internal components. Experiments based on real servers demonstrate 21% increase in throughput compared to existing techniques.

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