What Is Performance Testing? A Complete Guide for QA Teams

Performance testing evaluates an application's response under varying workloads, ensuring speed, responsiveness, stability, and scalability. It identifies bottlenecks, validates scalability, and ensures stability. QA teams should prioritize performance testing, especially during product launches and high-traffic events. Load testing measures normal operating conditions, while stress testing pushes beyond expected limits. Implementing performance testing in a fail-safe way is crucial for meeting Service Level Agreements (SLAs) and providing a good user experience.