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The editor today takes you to understand how to use the Linux system command top. The knowledge points in the article are introduced in great detail. Friends who feel helpful can follow the editor to browse the content of the article, hoping to help more friends who want to solve this problem to find the answer to the problem. Let's follow the editor to learn more about "Linux system commands how to use top".

To view running processes and system load information on a Linux system, you can use the top command. Top command is a commonly used performance analysis tool under Linux, which can display the resource consumption of each process in the system in real time, and is often used for server performance analysis.

The first five lines in the statistics area are the statistics of the system as a whole. The details are as follows:

The first line of server operation information: 09:46:41 current time up 71daysMagi 1615 system running time, format is days, hours: 2 users currently logged users load average: 0.00,0.00,0.00 system load, that is, the average length of the task queue. The three values are the average values from 1 minute, 5 minutes and 15 minutes ago to the present. Second behavior process information Tasks: total number of total processes running running processes sleeping sleeping processes stopped stopped third line CPU information Cpu (s): 0.5% us user space 0.3% sy kernel space 0.0% ni user process space CPU percentage 99.0% id idle CPU% 0.0% wa percentage of CPU time waiting for input and output 0.2%hi: hardware CPU interrupt percentage 0.0%si: soft interrupt percentage 0.0%st: virtual machine percentage fourth line Mem memory information: 8189652k total total physical memory 7885740k total physical memory used by used 303912k free total free memory 566272k buffers is used as kernel cache The fifth line of memory of swap exchange zone information: 4194300k total exchange total 15544k used total exchange area 4178756k free free exchange total 1318852k cached cache total exchange area You can use the exchange area memory Linux system to view the system process and the system load more than the top command, and you can use other performance monitoring tools.

What is Linux system Linux is a free-to-use and free-spread UNIX-like operating system, is a POSIX-based multi-user, multi-task, multi-threaded and multi-CPU operating system, using Linux can run major Unix tools, applications and network protocols.

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