Discover the importance of performance testing and learn how to build effective tests using K6 in this 55-minute conference talk from NDC Oslo 2021. Explore the deprecation of Azure DevOps load testing and the discontinuation of Visual Studio load testing features, emphasizing the need for suitable alternatives. Gain insights into best practices and common pitfalls in performance testing. Dive deep into K6, an open-source tool used by industry leaders like Microsoft and Amazon, and learn about its seamless integration with Azure DevOps. Follow along as the speaker implements a comprehensive performance test for a cloud web service, demonstrating how to verify compliance with Service Level Agreements (SLAs). Explore topics such as thresholds, stages, and multi-scenario templates, and discover the benefits of using Grafana for visualization. By the end of this talk, acquire the knowledge to become a performance testing hero using K6 and Azure.