Application developers need to ensure that their applications are tested and perfect in all respects before being sent for production and market. Not doing appropriate tests can lead to the danger of faulty applications, which when released without adequate testing, can seriously damage the reputation of the business. One of the critical tests that need to be carried out, for an application, is performance testing.
Performance testing of an application entails testing the speed of the application to verify whether it meets the expected criteria of the customers. It can be used to detect bottlenecks in the application that can slow down the entire system. This can be a mix of pre-described test cases in a test suite run on a test setup or executing ad-hoc test cases, depending upon the expertise of the testers.
Performance testing includes stability, and reliability tests and shares some common ground with load and stress testing as well. If you want to ensure that your application is reliable, it should do what it is supposed to do. Taking the help of an expert quality assurance software testing outsourcing service provider can be the right move to help you build and market a sturdy application.
It is important to define clear-cut objectives of performance testing so that the testing itself can be made more efficient. Such pre-defined and well-agreed objectives can lead to a better evaluation of the performance of the application vis-à-vis the objectives. It is often useful to define both qualitative and quantitative objectives for performance testing.
The main objectives of performance testing should include the following:
It is vital to understand what defines a ‘good’ performance level. Metrics need to be clearly defined that will indicate the performance of the application. The most commonly used metrics are:
Once the metrics are decided, it is important to run the test cases multiple times on various setups and during all the deployments to get a practical range of acceptable values for each metric. This can work as a baseline for future measurements. The minimum acceptable thresholds of each parameter can also be defined. Recollecting information from the application running over a long period and thus re-baselining the values of these metrics is very important.
This must be done periodically and surely after every upgrade or added functionality to an existing application. A software application development expert would ensure that all these metrics are in place for gauging the performance testing.
As with any other testing, a performance testing activity is as effective as its test cases. Careful planning, thoughtfully discussed with system and resource experts as well as application designers, is necessary to plan the performance test suite. Test cases need to be a mix of tests that check the:
It is important to perform the test cases and mark them passed as per defined criteria. But it is even more essential that the performance test results be reviewed for a thorough analysis by experts, over and above the analysis by the actual testers. The results can then be used to define goals for the improvement of the application’s performance. In case the performance levels are not within the acceptable levels as per the specified criteria, system-level expertise is most needed to be able to identify the bottlenecks causing performance degradation.
The right analysis can also help identify whether the product is ready for shipment/deployment, what is the maximum capacity and which configuration helps it run most effectively. The performance of an application gives an indication of its efficiency and time responsiveness. It gives the confidence that the software would not buckle up under too many simultaneous users and that the users/customers will not face long wait times or delays. If the performance requirements of the application are defined well in clear, concise, verifiable terms, it can help make useful test cases.
The main aim of performance testing is not to find errors, but rather to test the application for weaknesses and bottlenecks, remove these, and build a robust product. It also acts as a baseline for further regression testing. Enterprises that do not give due weightage to performance testing may find their products throwing up surprises with unhappy customers and users when the application is exposed to actual load.
Automation testing has emerged as an indispensable force to ensure flawless user experiences. Explore the 15 best automation testing tools.
ITSM is a reliable way to manage IT projects successfully. Learn about the best practices to make IT service management more efficient.
Expert insights on cost management and key strategies help businesses reduce their app development expenses. Know more about this here.
Ensure your app's success with comprehensive app testing. Discover the 6 essential types of mobile app testing for a flawless user experience.
Software testing plays a key role in the success of an application. Read to know the top 5 testing essentials to build bug-free applications.
Artificial Intelligence has made quality assurance more accurate and fast. Explore the impact of AI on testing processes.
Discover the 10 salient benefits of cloud adoption & know how it accelerates innovation, fuels agility, and ensures faster time-to-market for products and services.
Discover the 9 best practices for elevating software coding standards. Take your software development to new heights with our expert tips.
IT infrastructure management can be challenging while focusing on core business objectives. Discover the top hurdles in managing IT.