Autocorrelation options can be accessed from the Autocorrelation tab in the StresStimulus settings dialog from Main Menu > Edit > Settings...

Run autocorrelation after recording

When checked, the autocorrelation engine will automatically be executed after recording a new test case. It will create the necessary extractors and parameters for the test case.

The default is checked.

Multiple hosts exception:

If the recorded test case has multiple hosts with more than 30 requests, the autocorrelation engine will not start automatically. Instead, the user will be given an opportunity to review delete unnecessary hosts before starting the autocorrelation process manually.

Do not create extractors from these MIME types:

A comma-separated list of response MIME types that the engine will ignore when looking for extractors.

The input MIME types can only be a starting substring of the actual MIME types. For example, "image" will include image/png, image/jpg, etc...

Use this section to speed up the autocorrelation engine.

The default values is: image,video,audio,music

Do not create extractors from these pages:

A comma-separated list of pages that the engine will ignore when looking for extractors. An example of a page would be: /myfolder/mylargeresponse.htm

Use this only when the autocorrelation engine gets stuck on certain pages that are overly large in size and don't produce any autocorrelation extractors. 

Do not create parameters for all static MIME types:

Usually, static resources (such as images, css, js, etc.) have static URLs and don't need to be parameterized. However, if your test case uses dynamic URLS that need to be correlated, uncheck the checkbox.

Unchecking the checkbox will slow down the autocorrelation engine. The default is checked.

Parameterize client GUIDs

In some applications, when creating a data record, the record id (typically a GUID) will be generated by the client (javascript in browser). When checked, the autocorrelation engine will automatically detect client-created GUIDs and parameterize them with a GUID data generator.

The default is checked.

Pattern timeout (s)

Autocorrelation applies built-in and custom patterns to requests and responses to determine auto-correlation extractors. This value specifies the maximum processing time (in seconds) for each pattern. Specify 0 for unlimited processing time (this can increase the time it takes to complete auto-correlation). The default is 5.

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