Performance testing
Primary objective of the performance testing is “to demonstrate the system works functions as per specifications with in given response time on a production sized database.

Objectives:
Assessing the system capacity for growth.
Identifying weak points in the architecture
Detect obscure bugs in software
Tuning the system
Verify resilience & reliability

Performance Parameters:
Request-Response Time
Transactions per Second
Turn Around time
Page down load time
Through Put


-v.Vadivelan

Why Performance Testing:

¬-To assess the system capacity for growth
The load and response data gained from the tests can be used to validate the capacity planning model and assist decision making.

-To identify weak points in the architecture
The controlled load can be increased to extreme levels to stress the architecture and break it bottlenecks and weak components can be fixed or replaced

-To detect obscure bugs in software
Tests executed for extended periods can cause failures caused by memory leaks and reveal obscure contention problems or conflicts

-To tune the system
Repeat runs of tests can be performed to verify that tuning activities are having the desired effect – improving performance.

-To verify resilience & reliability
Executing tests at production loads for extended periods is the only way to access the systems resilience and reliability to ensure required service levels are likely to be met.

-V.Vadivelan