Deepin Linux

Oct 27, 2023 · Fundamentals

Understanding Linux Kernel I/O Mechanisms, File Systems, and Block I/O Scheduling

This article provides a comprehensive overview of Linux kernel I/O mechanisms, including file system interfaces, blocking and non‑blocking I/O, asynchronous models, multiplexing with select/epoll, EXT file‑system structures, VFS abstraction, consistency and journaling, as well as the complete block I/O path, scheduling algorithms, and debugging tools.