Performance Testing with JMeter 3 - Third Edition

Parameterizing the script

We begin by adding a CSV Data Set Config component (Test Plan | Add | Config Element | CSV Data Set Config) to our test plan. Since it is expensive to generate unique random values at runtime due to high CPU and memory consumption, it is advisable to define that up-front. The CSV Data Set Config component is used to read lines from a file and split them into variables that can then be used to feed input to the test plan. JMeter gives you a choice for the placement of this component within the test plan. You would normally add the component at the HTTP request level of the request that needs values fed from it. In our case, this will be the login HTTP request, where the username and password are entered. Another is ...