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No "Power" Struggles: Coordinated Multi-level Power Management for the Data Center

Raghavendra, Ramya; Ranganathan, Parthasarathy; Talwar, Vanish; Wang, Zhikui; Zhu, Xiaoyun


Keyword(s): data center, power management, coordination, efficiency, capping, virtualization, control theory

Abstract: Power delivery, electricity consumption, and heat management are becoming key challenges in data center environments. Several past solutions have individually evaluated different techniques to address separate aspects of this problem, in hardware and software, and at local and global levels. Unfortunately, there has been no corresponding work on coordinating all these solutions. In the absence of such coordination, these solutions are likely to interfere with one another, in unpredictable (and potentially dangerous) ways. This paper seeks to address this problem. We make two key contributions. First, we propose and validate a power management solution that coordinates different individual approaches. Using simulations based on 180 server traces from nine different real-world enterprises, we demonstrate the correctness, stability, and efficiency advantages of our solution. Second, using our unified architecture as the base, we perform a detailed quantitative sensitivity analysis and draw conclusions about the impact of different architectures, implementations, workloads, and system design choices. Publication Info: Published and presented at ASPLOS, Architectural Support for Programming Languages and Operating Systems 2008, March 1-5, 2008.

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