Software Testing Knowledge

Performance testing focused on ensuring the application under test gracefully handles increases in work load.

The execution of project functionality under customer expected configuration and customer expected load to estimate the performance of the project is called load testing or scalability testing.

Attributes of Scalability Testing:

• Response Time


• Throughput


• Screen transition


• Time (Session time, reboot time, printing time, transaction time, task execution time)


• Hits per second, Request per seconds, Transaction per seconds


• Performance measurement with number of users.


• Performance measurement under load.


• CPU usage Memory usage (Memory leakages, thread leakage) Bottlenecks {Memory, cache, process, processor, disk and network}


• Web server {request and response per seconds, services succeeded and failed, server problem if any}