Data Value Prefetching Method Based on Markov Model

XIE Xue-jun; YE Yi-zheng; QIU Shan-qin; YU Ming-yan

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Data Value Prefetching Method Based on Markov Model

更新时间：2025-07-16

- Data Value Prefetching Method Based on Markov Model
- Acta Electronica Sinica Vol. 35, Issue 2, Pages: 307-310(2007)
- 作者机构：
  
  1. 哈尔滨工业大学微电子中心,黑龙江,哈尔滨,150001
  2. 信息产业部软件与集成电路促进中心,北京,100038
  3. 哈尔滨工业大学微电子中心黑龙江哈尔滨,150001
  4. 信息产业部软件与集成电路促进中心北京,100038
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN72
- Published：2007
- 稿件说明：
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XIE Xue-jun, YE Yi-zheng, QIU Shan-qin, et al. Data Value Prefetching Method Based on Markov Model[J]. Acta Electronica Sinica, 2007, 35(2): 307-310.
DOI：

XIE Xue-jun, YE Yi-zheng, QIU Shan-qin, et al. Data Value Prefetching Method Based on Markov Model[J]. Acta Electronica Sinica, 2007, 35(2): 307-310. DOI：

摘要

根据程序中Load指令的行为特征构造马尔可夫模型

进而提出预取器的结构方案.SPEC仿真结果表明

与采用二级值预测方案以及基于程序语句相关的预取方案相比

在预测指令的覆盖率上分别提高了9.51%和2.02%

在预测精度上分别提高了12.9%和8.2%

而在IPC上

则分别提高了16.7%和7.4%.

Abstract

A data prefetching method was proposed based on a Markov model

which was constructed according to the behavioral characteristics of LOAD instructions.SPEC simulation result shows that this work is preferable to Two-level value prefetching method and Syntax-based prefetching method as its instruction-prefetching coverage was increased by 9.51% and 2.02%

its prefetching accuracy was increased by 12.9% and 8.2% and its IPC was increased by 16.7% and 7.4% respectively.

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Wuhan National Laboratory for Optoelectronics,Department of Electronics and Information Engineering, Huazhong University of Science and Technology

Department of Electronics and Information Engineering,Huazhong University of Science and Technology

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The 2nd Department,The 2nd Academy,Space Electromechanical Group

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