During crucial performance testing session we need to monitor and measure various parameters/metrics to be able to analyze and understand why the application behaves in a certain way under a specific load. Below ones are the most used metrics collected during performance testing sessions.

Software developers try to implement applications that not only is responsive and fast with a very small number of users but also with multiple users using the application. To be able to measure this we need to rely on different types of performance testing. Performance testing should be an integral part of the agile release manifesto.