eCope: Workload-Aware Elastic Customization for Power Efficiency of High-End Servers

Hardware components, especially CPU and memory, have made a lot of progress in terms of energy efficiency in the last decade. However, it is still far from the ideal energy proportional. Motivated by the recent observations that the energy efficiency of hardware components varies to a great extent depending on the workload characteristics, we propose eCope, workload-aware elastic customization for power efficiency of high-end servers, to reduce power consumption by workload aware and hardware customization for servers in datacenters. Our unique contribution is that eCope platform can take advantage of any configurable hardware that fits our assumption to improve the energy proportionality for various kinds of services without knowing the details of the target service. We illustrate three case studies to show how can we apply our idea to typical real-world back-end services (file system, database services and web-based services).