Reseach On Marching-on In-time Scheme And The Fast Algorithm Of Time Domain Integral Equation

This paper mainly studies file system and virtual file system of the Linux operatingsystem， Because the Linux operating system supports multiple specific file system andachieve the coexistence of a variety of file systems and direct access， so the Linux filesystem is very complex. Virtual File System， also known as a virtual file exchange(Virtual File Switch)， he will provide a unified user interface for the Linux system toaccess a physical device， regardless of the actual file system how it is organized. Thisarticle depth study of the Linux operating system’s virtual file system， including:overall structure of the virtual file system， the main virtual file system’s several datastructure: memory node，memory directory entry， memory super block， bufferheader: Open File Table， file system type etc， the installation list structure， thenintroduce the virtual file system’s initialization and buffer’s management: index node，catalog Project cache， buffer cache，analyzed operation of file system. After a deepunderstanding of the Linux file system structure and the VFS mechanism works，thewindows platform designed and implemented a virtual file system， the virtual filesystem simulation Linux’s file system， constructing the file system’s each data， notonly solves the problem of system file’s initialization， but also solves key issues ofthe registered users and registry to the virtual file system， while completing the fileread， write， and locate other basic operations.