Program to alert when jobs' CPU percentage becomes too high

Introduction
Monitoring CPU usage on IBM i jobs is critical for maintaining system performance and ensuring efficient resource allocation. High CPU usage can lead to performance degradation and impact overall system responsiveness.
Program Overview
Developing a program to alert administrators when CPU usage exceeds a predefined threshold is essential. This program should utilize the IBM i job monitoring capabilities to track CPU percentage in real-time. The program must run as a background job to continuously monitor CPU usage without impacting system performance.
Implementation Steps

• Define Thresholds: Establish acceptable CPU usage limits based on job types and system capacity.
• Job Monitoring: Use the QSYS2.JOB_INFO view to retrieve current job CPU usage statistics.
• Alert Mechanism: Implement an alert system using email notifications or system messages to inform administrators when CPU usage exceeds the defined thresholds.
• Logging: Maintain logs of CPU usage and alerts for historical analysis and troubleshooting.

Conclusion
Implementing a CPU monitoring program on IBM i enhances system administration capabilities. It allows for proactive management of system resources, ensuring optimal performance and reliability. Regularly review and adjust thresholds based on system performance trends to maintain efficiency.