Metrics are an important component of monitoring and observability. They provide information about specific durations of measured occurrences. In OpenTelemetry (OTEL), metrics play a huge role in providing visibility into the performance and health of an application. It has become a de facto standard among cloud-native apps for monitoring and observability solutions. Hence understanding OpenTelemetry metrics and when to use them will help you optimize your observability efforts.

Performance testing is a form of software testing that focuses on how a system running the system performs under a particular load. This is not about finding software bugs or defects. Different performance testing types measures according to benchmarks and standards. Performance testing gives developers the diagnostic information they need to eliminate bottlenecks. In this article you will learn about.