How to conduct stress testing using LoadRunner?

The steps for conducting stress testing with LoadRunner are as follows:

1. To install and set up LoadRunner, start by downloading and installing the software. Once installed, open the LoadRunner Controller and configure the test environment, including the IP address and port number of the target system.
2. Creating test scripts: In LoadRunner, test scripts are written in C language to simulate user actions on the target system. You can either record the script or manually write it. For example, you can record a script of a user logging into the system, performing a specific action, and then logging out.
3. Parameterization and data management: In testing scripts, there are often parameters such as usernames and passwords that need to be included. You should utilize LoadRunner’s parameterization feature to extract these parameters, allowing each virtual user to use different parameter values during runtime. Additionally, you can also use LoadRunner’s data management feature to read test data from external files for use in stress testing.
4. Scenario design: In LoadRunner Controller, you can create different scenarios, each representing a different testing workload. You can specify parameters such as the number of virtual users, the behavior script for each virtual user, and the duration. You can also specify the load distribution, such as uniform distribution or Gaussian distribution.
5. Running and monitoring tests: After setting up the scenario, you can run the tests. LoadRunner will simulate a specified number of virtual users and operate according to the set load distribution. You can monitor the test execution in real-time, including server response time, number of virtual users, error rate, and other metrics.
6. Analysis and reporting: After the test execution is completed, you can utilize LoadRunner’s analysis tool to review the test results. You can generate various charts and reports to analyze server performance bottlenecks, system resource usage, etc.

To sum up, the main steps for conducting stress testing with LoadRunner include installing and configuring LoadRunner, creating test scripts, parameterizing and data management, designing scenarios, running and monitoring tests, and analyzing and reporting results.