Load runner is a mercury interactive tool that can predicts the performance and
behavior of the system.
By creating the lots of loads, you can see how the system can react at peak
levels or with simultaneous users.
To test the application ,load runner emulates an environment where multiple
users work concurrently.
while the application is under load. load runner accurately measures and
analyzes the system performance and its functionality.
![working-loadrunner.jpg]()
Supporting environment for load runner:-
Application deployment solution: the citrix protocol.
Client server: MS SQL ,ODBC, oracle web applications11i,DB2 ,windows sockets and
DNS protocols.
E-business: FTP ,LDAP, Palm, web( HTTP/HTML), web services and dual web/win
sockets protocols.
Enterprise java beans- EJB testing and RMI -java protocols.
platforms-NT,2000,XP,SUN, HP ,IBM, LINUX
![loadrunner and its works.jpg]()
Components of load runner
Virtual user generator (VUGEN)
Itrecords Vuser scripts that emulate the step of
real users using the application.
Controller
it is an administrative center for creating ,maintaining ,and
executing scenarios .starts and stops load tests, and perform other administrative tasks
Analyser
uses the load test results to create graphs and reports that are used
to correlate system information and identify both bottlenecks and performance issues.
![graphs and analysis.jpg]()