Linux下的实时文件系统研究

Study on Linux-based real-time files system

在当今商品化如此发达的时代 ,Linux是一个奇迹。到现在为止 ,它已能支持十余种文件系统 ,但包括现在Linux所使用的Ext2文件系统在内 ,其实时性都不理想。正是基于这个原因提出了Linux下的实时文件系统 (LRTFS)。在分析虚拟文件系统 (VFS)和Ext2文件系统的基础上 ,首先指出它们在解决实时问题上的不足 ,然后提出了实时文件系统LRTFS ,并阐述了它在Linux下的设计和实现方案。

Nowadays,commercializing so developed an era,Linux is a miracle Till now,it has been support more than ten file systems,but the real-time performance is not very good including the Linux native EXt2 file system For this reason,this paper presents the comcept of Linux-based real-time file system(LRTFS).Based on the analyses of VFS and the EXt2 file system, this paper first point out the shortcomings on dealing the real-time problem.According to the previous analyses,the author introduce the LRTFS,and describe its design and implementation.