Performance Testing – the optimal start within the software development process.

Performance Testing (jeremy-bishop-72584-unsplash)

Performance Testing

 

Performance tests are performed to gain insights into performance in interaction with all components involved in certain artificially accelerated situations. It examines the resource utilization, scalability, and reliability of a system. The test method is part of the performance tests and analyzes to investigate possible power fluctuations or to detect failures in the design and architecture of a system in advance.

The goal here is to set targets (benchmarks) for the AUT (application under test) or test the system, on the other hand. Here you can use a number of target variables that prevail in software development and application operation. This is not about finding application errors, but about the performance and responses of a system’s scaled load increase. Performance testing is characterized by accurate performance testing and the gathering of information and intelligence during a high-performance operation.

Load Testing (load on an application)

Load tests are designed to bring the system under test to its limits by constantly increasing the number of users and transactions (per second). Findings about thresholds of a system just before total failure provide necessary information about the system architecture and hardware requirements. This is not about finding errors in the code. Load tests are also known under Volume or Endurance tests.

Load tests aim to address the AUT to the largest possible load, to find out how it deals with it, how persistent it is, and by when (system boundaries) the load can be scaled. Here, the zero load (no load at all) is examined to get to know the system in this situation.

The goal of load testing is to explore possible weaknesses and shortcomings of an application in the area of buffer overflows, memory leaks and memory failures in high load operation. In addition, it is important to find out where the limit or threshold values lie, both for the application itself and for connected systems such as database, hardware and network infrastructure, in order to be able to master the expected load without any problems in the future.

Load Testing (chuttersnap-458793-unsplash)

Stress Testing

Stress tests undergo a system of various actions to force it to fail and observe how it subsequently recovers itself. These include so-called negative tests, the decoupling of components involved, as part of stress tests. Also known as fatigue tests, this test method captures the stability of an application and its bandwidth capacity.

The challenge is to set up a controlled environment before starting the test to see exactly how the system behaves in unpredictable situations.

Stress Testing aims to analyze post crash reports in order to consciously control the system behavior after a failure. The biggest challenge is to make sure that the security of sensitive data is never compromised. One can speak of a successful stress test if the system goes back to normal operation together with all components after a total failure.

Read more about load and performance testing, challenges, checklist and much more. in our English language version.

Blog article: Performance Testing
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