ITR--Benchmarking and Profiling Tools for Disk I/O and Networked Storage Systems

YangHELP：磁盘I/O和网络存储系统的分析工具摘要本研究的主要目标是设计和实现一个用于低开销分析/优化的硬件环境，命名为HELP。HELP是一个由硬件嵌入式系统板和一组易于使用的api组成的框架，允许系统架构师为存储操作开发他们自己的高效分析和优化工具。HELP板可以直接插入服务器或存储系统，提高存储操作的速度。与大多数现有的分析和优化技术不同，我们的方法最大限度地减少了分析开销和数据倾斜，从而更准确地分析磁盘I/O行为。通过从主机卸载分析/优化功能，HELP可以在生产系统中执行运行时监视、收集、分析和优化磁盘I/O和数据存储操作。系统架构师能够在使用HELP设计分析和优化工具、研究存储访问行为以及发明新的存储体系结构方面探索比以往更多的机会。这项研究的成功完成将会产生一个有效的工具，对计算机体系结构研究以及更广泛的IT社区产生重大影响。研究人员可以从我们的帮助系统中受益匪浅，指导他们寻找数据存储的新架构和新算法。IT行业在选择存储系统和解决方案的设计时也可以从我们的工具中受益匪浅。它还将通过促进对详细系统行为的更好理解，对计算机体系结构教育产生重大影响。

YangHELP: A Profiling Tool for Disk I/O and Networked Storage SystemsAbstractThe major goal of this proposed research is to design and implement a hardware environment for low-overhead profiling/optimization, named HELP. HELP is a framework consisting of a hardware embedded system board and a set of easy-to-use APIs to allow system architects to develop their own efficient profiling and optimization tools for storage operations. A HELP board can be directly plugged into a server or storage system to speed up storage operations. Unlike most existing profiling and optimization techniques, our approach minimizes profiling overheads and data skews resulting in more accurate analysis of disk I/O behavior. By offloading profiling/optimization functions from the host, HELP makes it possible to do runtime monitoring, collecting, analyzing, and optimizing disk I/O and data storage operations in a production system. A system architect is able to explore more opportunities than ever in designing tools for profiling and optimization, studying behavior of storage accesses, and inventing new storage architectures using HELP.Successful completion of the proposed research will result in an effective tool that will have great impact on computer architecture research as well as broader IT community. Researchers can benefit greatly from our HELP system in guiding their search for new architectures and new algorithms for data storage. IT industries can also benefit greatly from our tool in making design choices for storage systems and solutions. It will also have significant impact on computer architecture education by facilitating better understanding of detailed system behavior.