In the field of software testing, one of the most primary aspects related to the efficient working of a product after release is its evaluation under the banner of performance testing.
An application needs to be tested for stability and responsiveness under varying workloads. Besides, it also needs to be tested for scalability and resource usage. Performance testing encompasses the examination of all such attributes. Some of the common problems that can cast a shadow on a product's performance are:
Depending on the sophistication involved, some apps can take an enormously long time to reboot/ load. Ideally, it should only be a matter of seconds.
It means a huge lag in time between feeding the input by the user and the output achieved from the system. Generally users lose interest with such apps.
These are faults in code which result in deteriorating quality of performance. Its sources can be limitations of operating systems, insufficient RAM memory, etc.
Load Testing is performed to gauge the behaviour of a system working under expected user loads. All impediments in the software along with those in the hardware in which it is installed are identified through a vigorously tested monitoring of all the application servers and in-built databases.
Stress Testing helps in finding out the maximum load under which the system software can sufficiently perform its tasks, before breakdown.
Soak test finds out the enduring capacity of the product to perform well under the expected loads, for a sustained period of time.
Sometimes there is a sudden surge in load on a system, created due to the increased user demand. Spike testing evaluates the ability of a system to withstand such loads without crashing in such emergency scenarios.
Configuration Testing helps us to judge the ability of the software to respond positively to minor changes in configuration modules at the time of a system upgrade or patch.
Sometimes a test case can cause faults in the working of a system. Isolation Testing involves identifying and segregating the fault territory.
Many a times a business enterprise has to alter the scale of its projects for expansion purposes. Scalability Test helps to evaluate, if the software product can scale up its effectiveness, to counter the demands of an enlarged user base.
Some of the widely used performance testing tools in market, based on the working environment and testing parameter are:
It's clear that an organisation's name is wholly dependent upon the longevity and final working quality of the product. Performance testing gives a fool proof guarantee of it's efficiency.To get detailed information about performance testing process visit this link.