Understanding the Load Testing process in LoadRunner
Load Testing in LoadRunner primarily goes by the following steps:
Step 1: Planning the test: Involves development of a clearly defined test plan to ensure that the newly developed test scenarios are able to accomplish the load-testing objectives.
Step 2: Creation of Vusers: Involves creation of Vuser scripts which contain various tasks performed by every Vuser, tasks performed by Vusers as a whole, and tasks measured as transactions.
Step 3: Creation of the scenarios: A scenario describes the events that occur during a testing session. It includes a list of machines, scripts, and Vusers that run during the scenario. Scenarios are created by using LoadRunner Controller. We can create manual scenarios as well as goal-oriented scenarios. In manual scenarios, we define the number of Vusers, the load generator machines, and percentage of Vusers to be assigned to each script. For web tests,
we may create a goal-oriented scenario where we define the goal that our test has to achieve. LoadRunner automatically builds a scenario for us.
Step 4: Running the scenario: The load on the server is emulated by instructing multiple Vusers to perform the tasks simultaneously. Before the testing, we set the scenario configuration and scheduling. We can run the entire scenario, Vuser groups, or individual Vusers.
Step 5: Monitoring the scenario:Scenario execution is monitored using the LoadRunner online runtime, transaction, system resource, Web resource, Web server resource, Web application server resource, database server resource, network delay, streaming media resource, firewall server resource, ERP server resource, and Java performance monitors.
Step 6: Analyzing test results: During scenario execution, LoadRunner records the performance of the application under different loads. We use LoadRunner’s graphs and reports to analyze the application’s performance.