JMeter Listener and how to use JMeter.

NEVER run a load test on the JMeter GUI! Use it only for test recording, development, and debugging.

NEVER run a load test on the JMeter GUI! Use it only for test recording, development, and debugging.

JMeter listeners enables performance engineers to monitor the requests sent from JMeter as well as to analyze the responses received from the system under test.

 Nearly all listeners have the ability to write results to a file, allowing performance engineers to transform them to the format they need for analysis.

View Results Tree listener provides the request parameters, response parameters and the response data.

The Simple Data Writer is such a listener. This listener can write results only to the filename that is provided. 

All listeners can be found by right clicking the test plan Add > Listeners. A JMeter listener will only collect data from JMeter elements at or above its level.

The Aggregate Graph is similar to the Aggregate Report, only in addition to the aggregated data table, it plots a bar chart for the response time metrics for each sample. 

The Active Threads Over Time listener shows how the number of active threads changes over the course of the test, for each thread group in the test. The Chart tab shows the results in line chart format, and the Rows tab shows the results in bar format as well.


https://www.blazemeter.com/blog/jmeter-listeners-part-1-basic-display-formats?utm_source=BM&utm_medium=BM_blog&utm_campaign=jmeter-listeners-part3-calculate-distribution-metrics



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