The tool consists of 3 major components: 1. Virtual user generator (Vugen – for recording and scripting) 2. Controller 3. Test results analyzer
Pros: ● ● ● ● ● ●
Loadrunner can record the performance of the client/server during test. Loadrunner analyzes where performance delay occurs network/client delays. It monitors the network and server resource to help the improve performance. It offers effective utilization of automation. Its scripting engine is flexible and we are able to quickly and easily simulate numerous of concurrent users. It decreases the requirement of the systems.
Cons: ● ● ●
The scripting language is used to represent the captured protocol data and manipulate the data for playback. Correlation is a way to substitute values in dynamic data to enable successful playback. Protocol is simply a language that your client uses to communicate with the system.
Selenium Selenium is a free (open source) automated testing suite for web applications across different browsers and platforms.Selenium provides a playback (formerly also recording) tool for authoring tests without the need to learn a test scripting language (Selenium IDE). It also provides a test domain-specific language (Selenese) to write tests in a number of popular programming languages, including C#, Groovy, Java, Perl, PHP, Python, Ruby and Scala. It also used for mobile Testing / performance testing but need to coordinate it with other tools like Selendroid, Appium.