Introduction to Process status in Linux

Article Title: Process status in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

State

During execution, the state is changed according to the environment. The Linux Process has the following states:

Running

The process is running (it is the current process of the system) or ready to run (it is waiting for the system to allocate CPU to it ).

Waiting

A process is waiting for an event or resource. In Linux, the waiting process is divided into two types: resumable and non-disruptive. A process that can be interrupted by signals. A process that can be interrupted can be waited directly under hardware conditions and cannot be interrupted under any circumstances.

Stopped

The process is stopped, usually by receiving a signal. The process being debugged may be stopped.

Zombie (defunct)

This is a process terminated due to the death of the parent process, but the task_struct structure is retained in the task data.