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How to do correlation? Messages in this topic - RSS

Unregistered User
Unregistered User
Posts: 140


7/16/2012
Unregistered User
Unregistered User
Posts: 140
I encountered a few issues with my test and have two questions:

  1. How do we do correlation in StresStimulus, as we do it in Load Runner? The reason for asking this query is, I have noticed that the session id’s and couple of other parameters are generated dynamically by the Server and a response is sent back to the client. So when I replay the script or do concurrency, the test is not getting through.

  2. Does StresStimulus automatically do correlation or not?


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Vadim @StresStimulus
Vadim @StresStimulus
Administrator
Posts: 583


7/16/2012
Vadim @StresStimulus
Vadim @StresStimulus
Administrator
Posts: 583
StresStimulus has one of the highest rates of successful autocorrelation, so comparison to other tools, much less manual work on configuring correlation is required. However, correlation of some parameters, like the session ID in your case, has to be set manually.  To do so,  first define an extractor from the dynamic variable generated by the server, as described in the items 1-3 of this post http://www.stresstimulus.com/blog/post/what-s-new-in-v1-5-part-2-extractors-and-parameterization  After that use this extractor to set the request parameterization as described in the items 4-7 of the same post.
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