The video tutorial explains the concept of controllers in JMeter, focusing on their role as containers for requests or samplers. It introduces different types of controllers, such as transaction and recording controllers, and demonstrates their use in organizing and measuring performance metrics in a JMeter test plan. The tutorial includes a practical example using a web application to illustrate how to set up and utilize these controllers effectively.

Discuss the importance of throughput in the context of JMeter controllers.

What are the common types of controllers used in JMeter scripts?

How do you differentiate between a request and a sampler in JMeter terminology?

What steps would you take to create a flight reservation module in JMeter?