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TYPE_ARTICLE FILE_REF: 0xba3

How to view the top 10 jobs using the most CPU

> ANALYSIS_OF: HOW_TO_VIEW_THE_TOP_10_JOBS_USING_THE_MOST_CPU_

Understanding CPU Usage on IBM i
Monitoring CPU usage is crucial for maintaining optimal performance on IBM i systems. Identifying the top jobs consuming CPU resources helps system administrators troubleshoot performance issues and optimize resource allocation.

Using the WRKACTJOB Command: The WRKACTJOB (Work with Active Jobs) command is a primary tool for viewing active jobs. By sorting jobs based on CPU usage, administrators quickly identify which jobs consume the most resources.
Sorting by CPU Time: Within the WRKACTJOB interface, users sort jobs by CPU time to view the top consumers. This provides immediate insight into which jobs require attention.
Utilizing Performance Tools: IBM i offers various performance monitoring tools that provide detailed insights into CPU usage trends over time, helping to identify patterns and potential issues.
Job Prioritization: Once the top CPU-consuming jobs are identified, administrators adjust job priorities or scheduling to optimize performance and ensure critical applications have the resources they need.

Conclusion: Regularly monitoring CPU usage and understanding which jobs are the most demanding is essential for maintaining the health and performance of IBM i systems. By leveraging built-in commands and tools, administrators effectively manage resources and enhance system efficiency.

SOURCE: RPGPGM [ ACCESS_EXTERNAL_SOURCE ]

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