Once a software product is released, its performance and functionality are the two most important aspects that are verified by the client. From determining how some components of a software perform under a particular workload to validating its scalability, reliability, endurance, & more, performance testing ensures miscellaneous attributes of the software and is one an extremely crucial testing type, without which guaranteeing software quality and effectiveness is impossible. Therefore, to help you know more about this type of testing, here is an elaborated discussion on performance testing.
In the field of software testing, one of the most primary aspects related to the efficient working of a product after its release is its evaluation under the banner of performance testing. Popularly known as “Perf Testing”, Performance Testing is a subset of performance engineering. It is a type of testing that is executed to ensure that the performance of a software application is suitable and perfect under the expected workload. It is the process of determining the speed, effectiveness, reliability, scalability, and other important features and elements of the system. Moreover, performance testing can be used to compare two or more applications as well as to evaluate their system speed, data transfer rate, bandwidth, efficiency, and reliability.
While performing this type of software testing, the system is tested under a mixture of load conditions, where the required response time is tested by the system under varying workloads. Furthermore, software performance testing involves testing of application under test to ensure that application is working as expected under variety of load conditions. The goal of performance testing is not only find the bugs in the system but also to eliminate the performance bottlenecks from the system.
To avoid the performance issues in an application, it is vital to perform stability testing and responsiveness testing 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:
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.
Under Volume Testing large number of data is populated in database and the overall software system's behaviour is monitored. The main goal here is to check software application's performance under varying database volumes.
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.
Performance testing is amongst the most beneficial software testing techniques that helps testers validate the performance of a software under diverse workloads. This process assists the team in identifying bottlenecks in the system and establishes a baseline for future testing. Moreover, it ensures that the software is in compliance with the performance criteria established before the execution of the project. Therefore, to understand the importance of this testing, it is vital for us to explore the process of performance testing, which is mentioned below:
The process of performance testing revolves around the quality and effectiveness of application and software’s scalability, speed and stability. Throughout the execution of testing, each of these elements of the software are monitored, which makes sure that the application or the software performs properly. However, while executing performance testing developers and testers come across various issues and discrepancies, which makes the whole process time consuming and difficult. Hence, here is a list of some common issues found during the process of testing the performance of an application.
Some of the widely used performance testing tools in market, based on the working environment and testing parameter are:
Our next blog highlights the complete list of top 10 performance testing tools.
Performance testing is an amalgamation of numerous testing activities, which work together to verify the speed, reliability, stability, performance, and other important aspects of the software. This type of testing enables the team to test the software under expected as well as unexpected workload and user load, which further guarantees its quality, compatibility, and functionality.