What is LoadRunner? LoadRunner is a performance testing tool developed by Micro Focus. It allows testers to measure and analyze system performance under various load conditions. What are the components of LoadRunner? LoadRunner consists of three main components: Virtual User Generator (VuGen), Controller, and Analysis. What is VuGen in LoadRunner? VuGen (Virtual User Generator) is a tool in LoadRunner used for recording and scripting user actions on the application under test. What is the purpose of the LoadRunner Controller? The LoadRunner Controller is used to configure and manage load tests. It allows you to define scenarios, allocate resources, and monitor test execution.