Performance is one of key qualities of a software product. Even if performance requirements are not defined they do exist. No matter if you define it or not in the product requirements customers expect the product to react in some acceptable time. This acceptable time can be different based on customer’s expectations.
Performance testing is very like load testing. It also requires specific knowledge and tools to be effective. But unlike load testing it bears demonstrative function rather than destructive. The goal of performance testing is to emulate required conditions and measure system response. Whereas Load testing is aimed at finding the threshold after which system stops operating correctly.
The tools that we use for performance testing are the same as we use for load testing.
Besides providing load testing services we also can help you in defining load capability requirements for your product.