Performance testing is the testing to performed ascertain component and how the components of a system are performing under a particular situation. Beside that, performance testing is type to determine the performance of the system and check the speed, scalability, reliability, stability under variety of load condition.This testing is the subset of performance engineering, which is focused on addressing performance issues in the design and architecture of software product.Performance testing can also be used as a diagnostic aid in locating communications bottlenecks. Often a system will work much better if a problem is resolved at a single point or in a single component.
Performance Testing is done to provide stakeholders with information about their application regarding speed, stability and scalability. More importantly, Performance Testing uncovers what needs to be improved before the product goes to market. Without Performance Testing, software is likely to suffer from issues such as: running slow while several users use it simultaneously, inconsistencies across different operating systems and poor usability. Performance testing will determine whether or not their software meets speed, scalability and stability requirements under expected workloads. Applications sent to market with poor performance metrics due to non existent or poor performance testing are likely to gain a bad reputation and fail to meet expected sales goals. Also, mission critical applications like space launch programs or life saving medical equipment should be performance tested to ensure that they run for a long period of time without deviations.
Types of Performance testing:
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