Table of Contents

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  1. Preface
  2. Performance Tuning Overview
  3. Bottlenecks
  4. Optimizing the Target
  5. Optimizing the Source
  6. Optimizing Mappings
  7. Optimizing Transformations
  8. Optimizing Sessions
  9. Optimizing Grid Deployments
  10. Optimizing the PowerCenter Components
  11. Optimizing the System
  12. Using Pipeline Partitions
  13. Appendix A: Performance Counters

Performance Tuning Guide

Performance Tuning Guide

Error Tracing

Error Tracing

To improve performance, reduce the number of log events generated by the Integration Service when it runs the session. If a session contains a large number of transformation errors, and you do not need to correct them, set the session tracing level to Terse. At this tracing level, the Integration Service does not write error messages or row-level information for reject data.
If you need to debug the mapping and you set the tracing level to Verbose, you may experience significant performance degradation when you run the session. Do not use Verbose tracing when you tune performance.
The session tracing level overrides any transformation-specific tracing levels within the mapping. This is not recommended as a long-term response to high levels of transformation errors.