concurrency - Simulating single action in parallel with recurring actions in Jmeter

Question

Suppose I've 50 users. I want the load of 49 users on the website in parallel with 50th user who will be performing a time-consuming single action only once. How can I achieve such concurrency in Jmeter?

question from:https://stackoverflow.com/questions/65841006/simulating-single-action-in-parallel-with-recurring-actions-in-jmeter

Answer 1

Normally you should be using different Thread Groups to represent different business groups of virtual users so you can have:

1. 1 Thread Group of 49 users doing the browsing or whatever
2. 1 Thread Group of 1 user doing a time-consuming single action

Alternatively you can go for a single Thread Group of 50 users and use Throughput Controller to limit execution of the single action to 1:

More information: Running JMeter Samplers with Defined Percentage Probability