CSR:Small:Kalipers-Deep Energy Inspection of Operating System Components

CSR:Small:Kalipers-操作系统组件的深度能量检查

• 批准号: 1116809
• 负责人: Peter Reiher
• 金额: $ 45万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-08-15 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1116809&HistoricalAwards=false
• 关键词: CSR; Small; Kalipers; Deep; Energy

The electrical power used by all classes of computers is becoming of increasing importance. A major component of the cost of running large server operations is power, and, on the other end, the utility of laptops, palmtops, pads, and other portable devices is highly constrained by their batteries? capacity to power operations. One important element of the power used by computers is that burned by the operating system, the software that controls the computer?s operation. Little is known about the impact different operating system options have on a machine?s power budget, due to difficulties with existing technology in precisely measuring power use and correctly ascribing power expended to its true source. Thus, determining if scheduling algorithm alternatives, different forms of memory management, or different security options offered by the operating system have good, bad, or neutral power impacts has been difficult. The Kalipers project will address this issue by using new technology to obtain detailed and reliable information about how important operating system components affect machine power use.Kalipers will achieve this goal through a program of experimentation using a unique hardware/software platform called LEAP. The LEAP platform, which we have already built and tested, allows fine-grained assignments of power use to particular piece of code. It also measures the differing power consumption by important system components, such as the CPU, the memory, and the hard drive. We will use the LEAP?s capabilities to determine how operating system actions and decisions affect the power use of platforms that have strong needs to minimize their power budget.Our experiments will be concentrated in three areas: file systems, memory management, and security services. These are areas we have experience in and where we have reason to believe power savings can be found. We will investigate alternative technologies (such as the power costs of different file systems, or software vs. hardware full disk encryption). The LEAP technology will allow us to dive more deeply into the power costs of different system components, allowing us to shed light on issues like the degree to which higher power costs for ext3 are due to its implementation details and the degree to which they are inherent in the journaling nature of that file system. We will also reimplement key components of the operating system to demonstrate how the knowledge we have gained can be used to improve a system?s power consumption.

所有类别的计算机使用的电力正在变得越来越重要。 运行大型服务器运营成本的主要组成部分是功率，另一端是笔记本电脑，棕榈台，垫子和其他便携式设备的实用程序受其电池的高度限制？电力运营的能力。 计算机使用的功率的一个重要元素是操作系统燃烧的功率，该操作系统是控制计算机操作的软件。 由于现有技术在精确衡量功率使用和正确归因于其真实来源时的现有技术方面的困难，对不同操作系统选项对机器的功率预算的影响知之甚少。 因此，确定调度算法替代方案，不同形式的内存管理或操作系统提供的不同安全选项是否具有好，坏或中性的功率影响。 Kalipers项目将通过使用新技术来获取有关操作系统组件如何影响机器功率使用的详细信息来解决此问题。Kalipers将通过使用唯一的硬件/软件平台的实验计划来实现此目标。 我们已经构建和测试的LEAP平台允许对特定代码进行精细元素分配。 它还通过重要的系统组件（例如CPU，内存和硬盘驱动器）来衡量不同的功耗。 我们将使用LEAP的功能来确定操作系统的动作和决策如何影响具有强大需求的平台的功率使用，以最大程度地减少其功率预算。我们的实验将集中在三个领域：文件系统，内存管理和安全服务。 这些是我们有经验的领域，我们有理由相信可以节省能源。 我们将研究替代技术（例如不同文件系统的电源成本，或软件与硬件完整磁盘加密）。 LEAP技术将使我们能够更深入地研究不同系统组件的电力成本，从而使我们能够阐明诸如EXT3较高功率成本的程度，这是由于其实施细节及其在该文件系统的日志性质中固有的程度。 我们还将重新实现操作系统的关键组件，以说明如何使用我们获得的知识来改善系统的功耗。