[AIX] How To Check CPU Usage On AIX Systems

How To Check CPU Usage On AIX Systems

How to Check CPU Usage On AIX Systems:

This post will discuss about how a system administrator can check CPU usage for AIX systems in Production environment.

Steps:

1. Running Processes:

Check what all application related processes are running and which all are utilizing more CPU by running the TOPAS command.

# topas

Topas command will give you the CPU usage for each process.

There are many different topas commands which system admin can use to check CPU usage.

# topas –P

2. Memory Usage:

Check memory usage for each process utilizing high CPU by running the following command:

# svmon –p

This will show memory usage for each command.

3. Kill Processes not Required:

Kill the processes not in use by the application team in production environment in order to reduce the CPU usage. Be very careful while killing a process, be 100% sure that the process is not being used by any team member in live environment.

Applications become slow when the disk is more than 80% busy. Same thing can be checked using the following commands:

# filemon

# nmon

# iostat