Book Image

Master Apache JMeter - From Load Testing to DevOps

By : Antonio Gomes Rodrigues, Bruno Demion (Milamber), Philippe Mouawad
Book Image

Master Apache JMeter - From Load Testing to DevOps

By: Antonio Gomes Rodrigues, Bruno Demion (Milamber), Philippe Mouawad

Overview of this book

Load tests help identify the maximum number of requests a software system can handle. One popular open source tool for load testing is JMeter. By leveraging the features and capabilities of JMeter, you can perform extensive load testing and fix issues in your application before they become problematic. This book is written by JMeter developers and begins by discussing the whole process, including recording a script, setting it up, and launching it, enabling you to almost immediately start load testing. You'll learn the best practices that you must follow while designing test cases. You'll also explore the different protocols offered by JMeter through various real-world examples. Finally, you'll see how to integrate JMeter into the DevOps approach and create professional reports. You'll discover ways to use the eco-system of JMeter to integrate new protocols, enrich its monitoring, and leverage its power through the use of the cloud. By the end of this book, you'll know all that's needed to perform comprehensive load testing on your applications by using all the best practices and features of JMeter.
Table of Contents (14 chapters)

Visualizing the Results with Listeners

JMeter provides a lot of listeners (and even more through JMeter plugins). That is why we will focus on the most important ones.

View Results Tree

View Results Tree provides the most detailed view of the test sample, Transaction Controller, or Response Assertion.

It indicates the response times and various information concerning the result (size in bytes, latency, state, and so on), the response headers, and the response data, but also the request headers and any data transmitted with all of its parameters.

This receiver is particularly useful during the development of a test scenario, notably thanks to the testers (Regexp, CSS Selector, XPath2, and Boundary).


In graphical mode (GUI mode), since this component stores a lot of data, it will impact injection, so make sure to only use GUI mode for debugging.

To reduce the risk of OutOfMemory errors, the last few versions of JMeter keep only 500 sample results (adjustable through the view.results.tree.max_results...