Thứ Năm, 16 tháng 2, 2012

A brief explanation of software performance testing

By Jasmine C. Griffiths


Software performance testing is a way of determining whether a system, such as a website, can remain responsive and stable under a certain workload. This is vital for anyone with an online business, as it ensures that visitors to your website can browse safely and securely and make hassle-free purchases. In the most basic terms, PCs are used to emulate a number of simultaneous users, while a separate PC records performance data.

There are several different types of software performance testing, with load testing being the simplest. This test simulates what would happen to your system when it is handling the expected number of users. Endurance testing ensures that the system can handle this load over a prolonged period of time.

Meanwhile, stress testing is used to see what would happen if it was put under the strain of an unusually high number of users, which might happen if a new product was launched for example. Spike testing uses a similar concept, making sure that a system can cope with a sudden and unexpected increase in the number of users. All of these elements are important for a successful software performance test to be executed.

To get the best results from software performance testing, you should begin your tests while the system is in development. This will allow you to highlight any faults early in the development process and address them immediately. If they are not removed from the system they could create further problems, which will require more time to fix, and ultimately more money.

Launching a system without carrying out a software performance test would be a bit like buying a house without having a building inspection carried out first - if you don't know where the cracks are it will inevitably crumble under strain. While a tough economic climate means that we are looking for any way to cut costs, performance software testing will undoubtedly save you money in the long run.




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