An Adaptive Method for Maintaining I/O Data Coherence of Multi-Core Systems

GUO Yu-feng; LI Qiong; DOU Qiang; LUO Li

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An Adaptive Method for Maintaining I/O Data Coherence of Multi-Core Systems

更新时间：2025-07-16

- An Adaptive Method for Maintaining I/O Data Coherence of Multi-Core Systems
- Acta Electronica Sinica Vol. 39, Issue 5, Pages: 1194-1198(2011)
- 作者机构：
  
  国防科学技术大学计算机学院,湖南,长沙,410073
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP302.1
- Published：2011
- 稿件说明：
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GUO Yu-feng, LI Qiong, DOU Qiang, et al. An Adaptive Method for Maintaining I/O Data Coherence of Multi-Core Systems[J]. Acta Electronica Sinica, 2011, 39(5): 1194-1198.
DOI：

GUO Yu-feng, LI Qiong, DOU Qiang, et al. An Adaptive Method for Maintaining I/O Data Coherence of Multi-Core Systems[J]. Acta Electronica Sinica, 2011, 39(5): 1194-1198. DOI：

摘要

I/O引发的数据一致性问题是多处理器系统数据一致性问题不容忽视的重要因素.多核使得处理器中的I/O一致性问题变得更加突出.另一方面

I/O访问模式的多样性使得单一的I/O一致性处理方法很难满足多样的I/O应用需求.本文首先分析了I/O应用访问模式

提出了I/O数据访问的七种特性;并根据I/O数据的访问特性提出了一种新型的自适应多核处理器I/O一致性处理方法

使得I/O一致性处理可以自适应地根据I/O应用进行动态调整

从而满足不同应用需求;最后

我们对自适应的I/O一致性处理方法进行了性能评测

评测结果表明该方法对不同的I/O应用均能获得很好性能.

Abstract

I/O data consistency problem is an important factor which multiple processors systems can not ignore.Multiple cores make the I/O consistency of processors become more and more severe.On the other hand

diversity of I/O pattern makes it's difficult to find a method which can satisfy different applications.Based on analysis of I/O pattern

we put forward seven characteristics of I/O workloads;Then presented a novel adaptive method for maintaining I/O data coherence in multi-core systems;Finally

the test results of our method would be shown

and we can find the method can satisfy different I/O workloads.

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