Command Line Tools to Monitor Linux Performance

Hi,

After the user have submitted Create Accounting in Oracle R12, the applications slow badly.
I have used some command line in linux to monitor server’s performance.

They are :

# iotop

This command is accounting function to monitor and display real time Disk I/O and processes. This tool is much useful for finding the exact process and high used disk read/writes of the processes.

# top

This command display CPU usage, Memory usage, Swap Memory, Cache Size, Buffer Size, Process PID, User, Commands and much more. It also shows high memory and cpu utilization of a running processess.

# lsof

This command used in many Linux/Unix like system that is used to display list of all the open files and the processes. The open files included are disk files, network sockets, pipes, devices and processes.

Reference :
Command to Monitor Linux Performance

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