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Algorithm Research & Explore
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430-434

Helper thread prefetching quality adjust algorithm based on prefetching rate

Zhang Jianxun1
Gu Zhimin2
1. College of Information Technology & Engineering, Tianjin University of Technology & Education, Tianjin 300222, China
2. College of Computer Science, Beijing Institute of Technology, Beijing 100081, China

Abstract

Pre-execution helper threads were needed to perform dynamic prefetching in the prefetch process. However, the traditional static enumeration parameter value was keep constant during in the execution of prefetching, so that the method can not effectively provide prefetching quality. To solve this problem, this paper proposed a method of prefetching quality control based on prefetching rate. Firstly, it analyzed the model of helper thread prefetching QoS optimization. Secondly, based on the previous work, this paper put forward the algorithm of parameter value adjustment based on prefetching rate. In the end, it evaluated and analyzed the algorithm on the real commercial multi-core platform. Experimental results were as follows. With the proposed prefetching adjusting algorithm, the geometric average performance speed up of the benchmarks was 1.114. It was similar to the traditional static enumeration method's geometric average performance speed up which was 1.135. The experimental results show that the proposed algorithm can solve the helper thread prefetching quality adjust problem, as well can quickly obtain the similar prefetching performance compared with the static enumeration method.

Foundation Support

国家自然科学基金资助项目(61070029,61370062)
天津市高等学校科技发展基金计划项目(JWK1618)
天津职业技术师范大学科研启动基金资助项目(KYQD1619)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2017.09.0877
Publish at: Application Research of Computers Printed Article, Vol. 36, 2019 No. 2
Section: Algorithm Research & Explore
Pages: 430-434
Serial Number: 1001-3695(2019)02-025-0430-05

Publish History

[2019-02-05] Printed Article

Cite This Article

张建勋, 古志民. 基于交织预取率的帮助线程预取质量调节算法 [J]. 计算机应用研究, 2019, 36 (2): 430-434. (Zhang Jianxun, Gu Zhimin. Helper thread prefetching quality adjust algorithm based on prefetching rate [J]. Application Research of Computers, 2019, 36 (2): 430-434. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

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