| 基于NAND Flash的嵌入式文件系统的改进与优化 |
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| 引用本文： | 杨春林,雷航. 基于NAND Flash的嵌入式文件系统的改进与优化[J]. 计算机应用, 2007, 27(12): 3102-3104 |
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| 作者姓名： | 杨春林 雷航 |
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| 作者单位： | 电子科技大学计算机学院嵌入式实时计算研究所电子科技大学计算机学院嵌入式实时计算研究所 |
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| 摘 要： | 以NAND Flash为介质的嵌入式文件系统主要存在两方面的不足：启动加载过长、对磨损平衡考虑不足。针对这两点不足，实现了一个新的NAND Flash文件系统，它通过改变数据节点的管理，将文件的控制信息和数据信息分开存储，缩短了启动加载时间；通过在垃圾回收时使擦除块交替存储冷热数据，实现了各擦除块间的磨损平衡。
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| 关 键 词： | 嵌入式文件系统 NAND Flash YAFFS |
| 文章编号： | 1001-9081(2007)12-3102-03 |
| 收稿时间： | 2007-07-16 |
| 修稿时间： | 2007-07-16 |
Improvement and optimization of embedded file system based on NAND Flash |
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| YANG Chun-lin,LEI Hang. Improvement and optimization of embedded file system based on NAND Flash[J]. Journal of Computer Applications, 2007, 27(12): 3102-3104 |
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| Authors: | YANG Chun-lin LEI Hang |
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| Abstract: | At present, the embedded flash file systems specially designed for NAND Flash mainly have two disadvantages: too long booting time and insufficient consideration for wear leveling. According to these two aspects, a new NAND flash file system named SFFS was proposed, which shortened the booting time through changing the management of data nodes and storing the controlling information and data information separately，and made wear leveling better through using a block to store hot data and cold data alternatively. |
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| Keywords: | embedded file system NAND Flash YAFFS |
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