Start Learning Load Runner

Load Runner is performance tool best suitable for maximum no.of protocols.
current version is 11.5 Owned by HP and called as HP load runner and prior to this it is with mercury.

Components of Load Runner:
1) Virtual User Generator
2) Load Generator 
3) Controller
4) Analysis

 Virtual User Generator :
Component is used to develop and customize the Vuser script based upon identified business scenario.
and based on identified scenario we will generate vuser's script and also costomize it with all the scripting scenario standard's to make sure the script will reply according to the vuser's behavior.
Installation file for vugen is vugen.exe

Controller :
This component is used to organize, drive, manage, and also monitor the multiple user test scenario as per the plan.
Installation file for controller is wlrun.exe and windows flavor supported

Analysis:
This  component is used to view, compare and analyze the result with graphs and statistical summery report.we can analize based on SLA's which have.
All the flavors of windows and Linux will be supported

Agent Process:
It is communicator between load generator and load controller.
Installation file for agent process is magentproc.exe.
All the flavors of windows, Linux  and Unix.

Note:
When we install agent process in machine then  that machine will acts like load generator.

Load Generator:
Will generator will generate the amount of load (virtual users ) and will hit the server.


Protocol adviser:
A Newly add feature available from LR 9.5 version and it detects the best suitable protocol to automate the script.

Usage
By selecting protocol adviser navigate any on of the end to end business scenario.this way the protocol adviser will walk through application communication and development technologies and identifies the supported protocols.
But Prior to this thing need to be done manually.

Load runner testing process:
Below are the steps involved in load runner testing process
1) Plan the load test
2) Convert business scenario into vusers script
3) Define the scenario
4) Execute/Run the defined scenario
5) Analyze the scenario.

In stall load runner trail version in your machine to start learning the script.
Options and steps while doing scripting

generally script is divided in to 3 parts:

1) vuser init():
2) Action();
3) vuser end();