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I’ve Got A Transformation That Doesn’t Run Fast Enough, But It Is Hard To Tell In What Order To Optimize The Steps. What Should I Do?

Answer»

Transformations stream data through their STEPS:

  1. That means that the SLOWEST step is going to determine the speed of a transformation.
  2. So you optimize the slowest steps first. How can you TELL which step is the slowest: look at the size of the input buffer in the log view.
  3. In the LATEST 3.1.0-M1 nightly build you will also find a graphical overview of this: HTTP://WWW.IBRIDGE.BE/?P=92
  4. (the “graph” button at the bottom of the log view will show the details).
  5. A slow step will have consistently large input buffer sizes. A fast step will consistently have low input buffer sizes.

Transformations stream data through their steps:



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