CSR: Small: Non-blocking Writes

CSR：小：非阻塞写入

• 批准号: 1320426
• 负责人: Raju Rangaswami
• 金额: $ 48.14万
• 依托单位: Florida International University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-10-01 至 2017-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1320426&HistoricalAwards=false
• 关键词: CSR; Small; Non; blocking; Writes

In current operating systems, writes to pages that are not in core memory require the process to block until the page can be fetched from the backing store. This project investigates buffering the write to a temporary page in core memory, so as to unblock the process to continue computation, and applying the write asynchronously. Research tasks include study and experimentation with implementation techniques for deferring out-of-core page writes, analysis of how scheduling and other aspects of the operating system may need to be modified in order to realize the full benefits of write deferral, and empirical studies to assess the performance impact of write deferral on a variety of applications.By incorporating non-blocking writes within the operating system, applications can transparently benefit from a performance improvement, without any modification to the application. The potential performance benefits apply to a broad spectrum of computer systems and applications. The project promotes transition of the technology to practice through open source distribution of Linux operating system code implementing the innovations. Educational activities include involvement of undergraduate students and incorporation of project research into courses taught by the PI. Outreach includes recruitment of under-represented minority students for participation in the project.

在当前的操作系统中，写入不在核心内存中的页面需要阻塞进程，直到可以从后备存储中获取页面为止。该项目研究将写入缓冲到核心内存中的临时页面，以便解除阻塞进程以继续计算，并异步应用写入。研究任务包括研究和实验延迟核外页面写入的实现技术、分析操作系统的调度和其他方面可能需要如何修改才能实现写入延迟的全部好处，以及实证研究评估写入延迟对各种应用程序的性能影响。通过在操作系统中合并非阻塞写入，应用程序可以透明地从性能改进中受益，而无需对应用程序进行任何修改。 潜在的性能优势适用于广泛的计算机系统和应用程序。 该项目通过实施创新的 Linux 操作系统代码的开源分发来促进技术向实践的转变。 教育活动包括本科生的参与以及将项目研究纳入 PI 教授的课程中。 外展活动包括招募代表性不足的少数族裔学生参与该项目。