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javajmeterperformance-testing

Customizing JMeter Listener

I want to customize JMeter Listener "Summary Report".

It gives Average, Minimum and Maximum Elapsed Time. I need to subtract some constant value from each request Elapsed Time. How do I do this?

Solution

  • The simplest and best way to do this is to edit the raw results file. Personally I like to use awk for this sort of thing but I guess you could also use a spreadsheet.

    Once you've amended the file you can then reload it into the listener. This isn't super intuitive but where you see Write results to file / Read from file you can enter the path to the amended file and this will then update the Summary (or any other listener) Report.

    Remember to use CTRL-E to clear the existing data from memory before loading the new file otherwise it will merge both sets.

    You could also customise the listener plugin by changing its source but that would be a bad idea for such a use case.