Load Runner Q & A Part 2
11.What is load testing?
Testing of application for simultaneous users
12.What does vuser_init action contains?
Login procedures
13.What is the main aim of load testing?
To calculate the response time
14.What the Vuser script will do while running the scenario?
The actions that a Vuser performs during the scenario are described in a Vuser script. When we run a scenario,each Vuser executes a Vuser script. The Vuser script include functions that measure and record the performance of the server during the scenario.
15.What is Transaction time?
To measure the performance of the server,we define transactions. Transactions measure the time that it takes for the server to respond to tasks submitted by Vuser.
16.What is Rendezvous points?
We can insert Rendezvous points in to Vuser scripts to emulate heavy user load on the server. Rendezvous points instruct multiple Vuser to perform tasks at exactly the same time.
17.What is controller?
LoadRunner controller is used to manage and maintain our scenarios. Using the controller ,we can control all the Vusers in a scenario from a single work station.
18.What is Hosts?
The host is the machine that executes the Vuser script,enabling the Vuser to emulate the actions of a human user.
19.What is mean by Rendezvous points?
A rendezvous point creates intense user load on the server and enables LoadRunner to measure server performance under load
20.What is the need for doing load testing?
The factors are: Minimal infrastructure,Reliable,Repeatable,Programmable,Comprehensive,Reusable
21.How to create Vuser Groups in loadrunner?
A scenario consists of groups of Vusers which emulate human user interacting with your application. When you run a scenario, the Vusers generate load on the server, and LoadRunner monitors the server and transaction performance
22.Why should we automate the performance testing?
Its a discipline that leverages products,people and processes to reduce the risk of application,upgrade or patch deployment. It is about applying production work loads to pre-deployment systems while simultaneously measuring system performance and end-user experience.
23.What are all the things will be considered while doing performance testing?
? Does the application respond quickly enough for the intended users?
? Will the application handle the expected user load and beyond?
? Will the application handle the number of transactions required by the business?
? Is the application stable under expected and unexpected user loads?
? Are we sure that users will have a positive experience on go-live day?
24. What are the LoadRunner components?
? Virtual User Generator
? Controller
? Load Generators
? Analysis
? Launcher
25. What is the LoadRunner testing process?
? Plan load test
? Create Vuser Scripts
? Define Scenario
? Run Scenario
? Analyze results
26.What is remote command launcher?
The remote command launcher enables the controller to start applications on the host machine
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