Linux Operating System Kernel Analysis And Research

The operating system is the computer important constituent, OS superior or inferior rank is directly related to the merits of the overall performance, moreover is the safe foundation stone of domestically produced foundation application software development and national, collective, individual information security. Because of open, free characteristic, Linux OS provides for the people a research overseas outstanding operating system design thought and the realization method opportunity, has the very vital significance regarding the development domestic product operating system.This paper analyzes and researches the components of Linux 2.4 OS kernel of the four basic functions : process management and scheduling, memory management, file system management mechanisms.1. Process management and process scheduling mechanism for describing data structures process control block and how to create, implement, management and schedul process.2. Storage management mechanism for describing physical memory management, kernel buffer cache management, virtual memory management of process, the working principle.3. File management mechanisms described how the Linux Virtual File System (VFS) support a wide range of physical file System, and it studies the processes of a physical file system registering,unregistering,mounting and unmounting in Linux file system.By analyzing Linux 2. 4 Operating System Kernel, Mastered the design and implementation of the operating system, Lay a solid foundation for Custom specific embedded operating system. Meanwhile I should improve in the OS kernel performance through qualitative analysis and make theoretical innovation.