Journal of Software:2014.25(2):254-266

(浙江工商大学 计算机与信息工程学院,浙江 杭州 310018;浙江大学 计算机科学与技术学院,浙江 杭州 310027;浙江大学城市学院 计算机分院,浙江 杭州 310015)
Exploiting Memory Access Patterns of Programs for Energy-Efficient Memory System Techniques
ZHANG Tie-Fei,CHEN Tian-Zhou,WU Jian-Zhong
(College of Computer Science and Information Engineering, Zhejiang Gongshang University, Hangzhou 310018, China;College of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China;School of Computer Science, Zhejiang University City College, Hangzhou 310015, China)
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Received:May 07, 2013    Revised:December 05, 2013
> 中文摘要: 与不断提升的计算能力相适应,移动手持设备上的存储系统结构越来越复杂,容量越来越大.这种趋势导致存储系统,主要是片上缓存和主存,在系统总能耗的占比中不断攀升.在当前手持设备多由电池驱动并且电池容量十分有限的情况下,存储系统的低功耗设计就显得十分重要.虽然现有的存储器件提供了一定的硬件节能支持,但是只有与应用程序的访存行为的规律相结合,才能充分发挥硬件的节能潜力.对现有的各种低功耗存储技术进行了梳理和总结,给出程序的访存模式的概念,归纳出访存模式在3个方面的内涵,并进一步详细介绍了程序的访存模式在片上缓存和主存低功耗技术中的应用.最后,展望未来结合访存模式进行低功耗存储系统研发的可能方向.
Abstract:To keep pace with the fast growing computing power, the memory system of mobile devices has become more complicated and larger in capacity. As a result, the memory systems, especially the on-chip cache and the main memory, consume a major portion of the system energy. With the limited lifespan of the battery, the memory system of the mobile device demands energy-efficient design and techniques urgently. Without the exploration of the memory access patterns of the programs, it is impossible to fully exploit the potential energy benefits provided by the current memory hardware. This paper introduces the memory access patterns of the programs, describes its three main characteristics, and discusses how to develop energy-efficient techniques based on it in detail. In the end, some future trends in this area are discussed.
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基金项目:国家自然科学基金(61379035);浙江省自然基金(LQ12F02017);浙江省移动网应用技术重点实验室开放基金;新一代移动互联网软件服务浙江省重点科技创新团队资助项目;浙江工商大学人才引进科研启动项目;浙江工商大学(硕士)高级计算机系统结构建设经费 国家自然科学基金(61379035);浙江省自然基金(LQ12F02017);浙江省移动网应用技术重点实验室开放基金;新一代移动互联网软件服务浙江省重点科技创新团队资助项目;浙江工商大学人才引进科研启动项目;浙江工商大学(硕士)高级计算机系统结构建设经费
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ZHANG Tie-Fei,CHEN Tian-Zhou,WU Jian-Zhong.Exploiting Memory Access Patterns of Programs for Energy-Efficient Memory System Techniques.Journal of Software,2014,25(2):254-266