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| 论文题目 |
基于嵌入式文件系统的媒体文件快照技术 |
| 论文题目（英文） |
Msnap-a Media File Sanpshot Technique Based on Embedded File System |
| 作者 |
吳丽彬 |
| 发表年度 |
2008 |
| 卷 |
29 |
| 期 |
11 |
| 页码 |
66-71 |
| 期刊名称 |
微计算机应用 |
| 摘要 |
目前嵌入式文件系统的可靠性是嵌入式系统开发中较为重要的环节，然而其设计与开发往往受限于其严格的内存、处理器、以及I／0的限制，而且一些额外的复杂性管理与磁盘的延迟都会直接影响嵌入式文件系统的性能为了提高系统的稳定性与可靠性，本文提出了一种基于嵌入式Ext2文件系统同步与异步I／O并存的媒体文件快照存储系统(MSFS)，其主要技术是MS．p(媒体数据虚拟视图快照技术)。不同于其他的快照技术，这种技术不需要大容量的快照数据卷以及复杂的操作就能够很好的提供文件系统的可靠性与稳定性。文章的最后给出了该技术应用后与传统操作系统的实验数据对比情况。
关键词：快照同步异步嵌入式操作系统 |
| 摘要_英文 |
File system reliability has always been a strong concern in the embedded operating system．However，embedded systems Usually have very strict memory，processor，and I／O limitations that must play factors in designing an embedded system．Moreover，the
cost of additional system management complexity and disk latency are the key factors that directly affect the file system performance．Because of these problems and limits，we propose an embedded media meta—data snapshot storage file system(MSFS)for the extfile system，which based on the asynchronous／synchronous I／O coexistedstrategy of media file storage，in CIJinu kernel 2．4．26．The main technique of this File system is MSnap(meta—date virtual view snapshot technique)．Unlike other snapshot technologies；it dose not needs massive snapshot volume and complexity implementation．Experimental results show that MSnap induces less overhead and has higher performance，reliability than traditional snapshot system．
Keywords：snapshot，asynchronous，synchronous，embedded system |
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