CAREER: System Software Design for Energy Conservation

节能是电池供电便携式计算机的一个重要问题。这个项目的目标是调查软件系统技术，利用关于当前工作负荷和应用需求的知识来节约能源。更具体地说，该项目将：(1)开发一种系统的方法来评估节能技术，无论它们是在硬件还是软件中实现的。该评价将指导能源驱动的硬件和软件设计。(2)在操作系统层面，开发技术，利用硬件提供的机制来控制设备，以修改公共服务的行为，以降低能耗。(3)在体系结构层面，设计存储器体系结构以允许在性能和能耗之间进行权衡。(4)开发利用有关应用程序使用模式和低功耗固态存储器可用性的信息的文件系统。(5)在应用程序层面，设计程序接口，向操作系统传递有关使用模式和性能要求的信息。模拟和实际实现的结合将用于评估上述技术。这个CAREER项目的教育部分将包括为本科生和研究生开发面向实验室的操作系统课程。此外，将鼓励自主学习的本科生参与软件工具的研究和开发。

Energy conservation is an important problem in battery powered portable computers. The objective of this project is to investigate software system techniques for conserving energy, using the knowledge about current workload and application requirements. More specifically, the project will: (1) Develop a systematic approach for evaluating energy conservation techniques whether they are implemented in hardware or software. The evaluation will guide the energy driven hardware and software design. (2) At the operating system level, develop techniques to control the devices using the mechanisms provided by the hardware to modify the behavior of common services for lower energy consumption. (3) At the architecture level, design memory architectures to permit trade-off between performance and energy consumption. (4) Develop file systems that exploit information about applications' usage patterns and the availability of low- power solid-state memory. (5) At the application level, design program interfaces for conveying information to operating system about the usage patterns and performance requirements. A combination of simulation and actual implementations will be used to evaluate the techniques described above. The educational component of this CAREER project will include the development of laboratory-oriented operating systems courses for both undergraduate and graduate students. In addition, undergraduate students enrolled in independent studies will be encouraged to participate in the research and development of software tools.