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AIX 5L Practical Performance Tools and Tuning Guide by IBM Redbooks

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3.4. Performance Diagnostic Tool (PDT)

The Performance Diagnostic Tool (PDT) package attempts to identify performance problems automatically by collecting and integrating a wide range of performance, configuration, and availability data. The data is regularly evaluated to identify and anticipate common performance problems. PDT assesses the current state of a system and tracks changes in workload and performance.

PDT data collection and reporting are easily enabled, and no further administrator activity is required. While many common system performance problems are of a specific nature, PDT also attempts to apply some general concepts of well-performing systems to search for problems. Some of these concepts are:

  • Balanced use of resources

  • Operation ...

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