Shulou(Shulou.com)05/31 Report--

In this article, the editor introduces in detail "what is the role of the linux kernel", the content is detailed, the steps are clear, and the details are handled properly. I hope this article "what is the role of the linux kernel" can help you solve your doubts.

The role of the linux kernel: 1, responsible for the creation and destruction of processes, the completion of inter-process communication, as well as the input and output of processes; 2, memory management; 3, file system management; 4, responsible for device control, the kernel contains driver code to access hardware devices on the platform; 5, responsible for network functions.

The operating environment of this tutorial: linux7.3 system, Dell G3 computer.

The role of the linux kernel

Linux kernel is the core of a large and complex operating system. Like the human brain, it processes all kinds of requests and has five modular functions, including process management, memory management, file system management, device control and network management. The following is a detailed description:

1. Process management

The Linux kernel is responsible for process creation and destruction, and completes communication between processes, as well as process input and output; moreover, process management controls the use of one or more CPU resources on the Soc by multiple processes.

2. Memory management

The use strategy of memory resources is particularly important for the performance of the operating system. On the limited memory resources, a virtual address space is established for each process. Different functional parts of the kernel interact with the memory management subsystem through a set of function calls, which makes the communication efficient and simple.

3. File system management

In Linux operating system, almost anything can be regarded as a file. Kobject and other structures are widely used in the kernel to organize a pile of unstructured hardware into a multi-level data system. In addition, Linux supports multiple file system types, such as EXT4.

4. Equipment control

Almost any operating system ends up running on a physical platform, and the kernel contains driver code to access hardware devices on the platform.

5. Network function

Most network operations are not associated with specific processes because the transmission of packets is an asynchronous event. Before the application accesses the packet, the kernel completes the tasks of collecting, identifying and distributing the packet.

After reading this, the article "what is the role of the linux kernel" has been introduced. If you want to master the knowledge points of this article, you still need to practice and use it yourself to understand it. If you want to know more about related articles, welcome to follow the industry information channel.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.