Need of Performance testing for any application:

Need of Performance testing for any application:Performance testing is mainly conducted to address various problems/risks that are close to expense, cost and company’s reputation. Performance testing gives us a chance to estimate the performance of the application under test.To avoid the chances of end users not willing to use the application because of its slow response times, which may lead to high revenue loss, loss of reputation, loss of existing and new customers for the company which own the application?So, performance testing gives us a chance to find out the application health in terms of its behavior for high loads/ different load levels / peak loads etc..Also we can find out the how the application runs if the load increases in future because of newly added customers. So forecasting can be done easily using performance testing. I.e how much load the current infrastructure can handle? If the load increases in future, whether the current infrastructure can handle it? So, depending upon these statistics the company can set up the infrastructure that is needed.Pre requisites before doing performance testing:1)Complete understanding of the project and the 2) main objectives of the performance testing, 3) performance success strategy, 4) SDLC process, 5) The scheduling of the project, 6) Assigned budget of the project, tools and necessary soft wares for doing the performance testing etc….7) End client expectations, 8) Compliance strategy, 8) Security issues, etc..