What are the main parts of the Linux kernel? What is the function of each part?

Composition: 1. Process scheduling, controlling process access to the CPU; 2. Memory management, allowing multiple processes to safely share the main memory area; 3. Virtual file system, providing a unified interface for all devices; 4. Network interface, providing access to various network standards and support for various network hardware; 5. Inter-process communication, supporting various communication mechanisms between processes.

#The operating environment of this tutorial: Linux 6.1 system, Dell G3 computer.

Related recommendations: "Linux Video Tutorial"

The Linux kernel is mainly composed of five subsystems: process scheduling, memory management, virtual file system, network interface, inter-process communication.

• Process Scheduling (SCHED): Controls process access to the CPU. When it is time to select the next process to run, the scheduler selects the process most worthy of running;

• Memory Management (MM) allows multiple processes to safely share the main memory area;

• Virtual File System (VirtualFileSystem, VFS) hides the specific details of various hardware and provides a unified interface for all devices. VFS provides dozens of different file systems;

• Network interface (NET) provides access to various network standards and support for various network hardware;

• Inter-process communication ( IPC) supports various communication mechanisms between processes.

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