linux check if process running

COPY FROM:HTTP://WWW.2CTO.COM/OS/201204/127771.HTML1 Linux process sleep and wake up in Linux, processes that wait only for CPU time are called ready processes, and they are placed in a running queue, The status flag bit for a ready process is

In linux, you can run the top command to check the system running status and process running status. you can run the man command to check the top Manual. the top command is interpreted as displayLinuxtasks. you have seen another explanation:

Linux Process scheduling principle The goal of Linux process scheduling 1. Efficiency: High efficiency means more tasks to be done at the same time. The scheduler is executed frequently, so the scheduler should be as efficient as possible; 2.

Li Junfeng + Original works reproduced please specify the source + "Linux kernel analysis" MOOC course http://mooc.study.163.com/course/USTC-1000029000I. Experimental principles1. Definition of the processProcess is the concept of the operating

Linux Startup Process (transfer)   The introduction to the Windows Startup Process is rare. All users who have used Linux may notice that when a computer is started, a lot of information appears on the screen. In general, we can see this

When you enable your computer, you will find that the operating system is essential. Microsoft accounts for a large part of the operating system, but Linux has also caught up with Microsoft in recent years. Linux is a multi-user and multi-task

Original address:http://cchxm1978.blog.163.com/blog/static/35428253201092910491682/Pretty good article, read the Post collection, Dochebeau Master share!Start---------------------------------body--------------------------------- To implement

The university and the teacher do the embedded project, write the device driver of I²c, but the knowledge of the Linux kernel is limited to this. Many of the vulnerabilities in the Android system that lead to root are in the kernel, and it's

Abstract: The portability of Embedded Linux allows us to see it on various electronic products. Linux boot processes vary for processors of different architectures. This article takes the S3C2410 ARM processor as an example to analyze the execution

    [Operation level] Linux has 7 runlevels)Running level 0: The system is down. The default running level cannot be set to 0. Otherwise, the system cannot start normally.Running Level 1: single-user working status, root permission, used for system