What is performance testing?
Software performance testing is a process of evaluating a software or system performance in terms of its speed, scalability, and stability carried out under a variety of conditions simulated in a testing environment.
It helps to identify and resolve performance issues, such as: bottlenecks, memory leaks, or other problems that could cause the software to run slowly or crash.
Performance tests are typically carried out using specialized software tools that simulate various workloads and conditions, and can be done at different stages of the software development lifecycle. The performance testing tools can be used to measure key performance metrics, such as: response time, throughput, and resource utilization.
Types of performance testing
- Load testing that involves simulating a heavy workload to determine how well the software can handle the load – i.e. expected number of users or transactions – without crashing or becoming unresponsive.
- Stress testing: that involves subjecting the software to an extreme workload to determine its breaking point. It is often used to identify the maximum capacity of the software and identify any issues that may arise under heavy workload.
- Scalability testing that is used to determine how well the software can handle an increase in workload – i.e. number of users or transactions – over time.
Performance testing is an important aspect of software development process, since poor performance can lead to a negative user experience and may cause users to abandon the software.