计算机工程 ›› 2009, Vol. 35 ›› Issue (12): 250-253.doi: 10.3969/j.issn.1000-3428.2009.12.087

• 开发研究与设计技术 • 上一篇    下一篇

一种多路Flash存储结构的热数据判断方法

钟 诚,岳丽华,韦 鹏   

  1. (中国科学技术大学计算机科学与技术系,合肥 230027)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-06-20 发布日期:2009-06-20

Identification Method of Hot Data for Multi-bank Flash Storage Architecture

ZHONG Cheng, YUE Li-hua, WEI Peng   

  1. (Dept. of Computer Science and Technology, University of Science and Technology of China, Hefei 230027)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-06-20 Published:2009-06-20

摘要: 在多路Flash存储结构基础上研究多路并行写入时各芯片间的磨损均衡问题。提出用基于数据访问频率的热数据判断方法解决频繁访问数据在各芯片之间的均衡分布问题。实验表明,基于数据访问频率的热数据判断方法,不仅能有效区分频繁和非频繁访问的数据,还能满足多芯片中热数据均衡分布的要求。

关键词: Flash存储器, 多路写入, 热数据判断

Abstract: This paper researches the wear-leveling among chips when multi-bank writing on multi-bank flash storage architecture, propose an identification of hot data based on frequency of data access to solve the balanced distribution of frequently accessed data among multi-chips. Experimental results show that the identification methed of hot data based on frequency of data access is not only accurate for identifying hot data, but also appropriate for the hot data distribution among multi-chips.

Key words: Flash memory, multi-bank writing, identification of hot data

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