In linux, view the cpu usage-Linux Enterprise Application-Linux server application information. The following is a detailed description. Permission: All Users
Description: displays the process status in real time.
Count?
D: Change the display update speed, or press s in interactivecommand
Q: there is no delay in display speed. if the user has the superuser permission, top will be executed in the highest priority.
C: Switch the display mode. There are two modes: one is to display only the name of the execution file, and the other is to display the complete path and name S: accumulative mode, accumulates the CPU time of the completed or disappearing sub-itinerary (deadchildprocess ).
S: security mode. Cancel negotiated commands to avoid potential crisis.
I: Do not display any idle (idle) or useless (zombie) itinerary
N: number of updates. After the update is completed, the system will exit the top
B: The batch file mode, used together with the "n" parameter, can be used to output the top result to the file.
Example:
Show 10 updates and exit
Top-n 10
The user will not be able to use the negotiated command to run the following command on the itinerary: top-s
Input the result of the second update display to the file named top. log: top-n 2-B <top. log
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