Monitoring System Resources

Two useful system metrics for monitoring system resources are CPU utilizationand free memory. If either of these metrics is compromised, the system is probably not running optimally and requires attention.

To monitor CPU utilization:

• Microsoft Windows: Use the Performance microagent and the System method, and check the %Total Processor Time result field.
• UNIX: Use the System microagent and the getCpuInfo method, and check the % System Time or % User Time result field. You could also check the %Time Idle field for low values.

To monitor overall memory usage:

• Microsoft Windows: Use the Performance microagent and the Memorymethod, and check the Committed Bytes or % Committed Bytes in Use result field. To check swap file usage, use the Performance:Paging File()method and check the % Usage and % Usage Peak result fields.
• UNIX: Use the System:getSwapInfo