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Thursday, July 22, 2010

Drawbacks of Manual Performance testing and how does a LoadRunner work ?

Working of LoadRunner

- The Controller is the central console from which the load test was managed and monitored.
- Thousands of virtual users perform real-life transactions on a system to emulate traf c.
- Real time monitors capture performance data across all tiers, servers and network resources and display information on the Controller.
- Results are stored in the database repository, allowing users to generate the reports and perform analysis.

The LoadRunner automated solution addresses the drawbacks of manual performance testing:
• LoadRunner reduces the personnel requirements by replacing human users with virtual users or Vusers. These Vusers emulate the behavior of real users operating real applications.
• Because numerous Vusers can run on a single computer, LoadRunner reduces the hardware requirements.
• The LoadRunner Controller allows you to easily and effectively control all the Vusers from a single point of control.
• LoadRunner monitors the application performance online, enabling you to fine-tune your system during test execution.
- LoadRunner automatically records the performance of the application during a test. - LoadRunner checks where performance delays occur: network or client delays, CPU performance, I/O delays, database locking, or other issues at the database server.
- LoadRunner monitors the network and server resources to help you improve

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