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Energy Efficient Servers: Blueprints for Data Center Optimization by Corey Gough, Ian Steiner, Winston Saunders

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CHAPTER 7

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Monitoring

Optimizing a server for power, performance, or cost can be achieved with minimal effort. This process begins with monitoring the behavior of a system to understand how it is used and what opportunities exist for improvement. Sensor measurements such as voltage, current, energy, power, and temperature identify individual components that contribute the most to overall server power. Latency, bandwidth, and throughput events illustrate the energy cost of delivering additional performance. Monitoring of power state transitions, clock interrupts, and device interrupts allows users to build a deeper understanding of the distribution ...

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