Load testing is an important part of predicting how your service is going to behave over time. When we are performing load testing, we shouldn't just ask simple questions, such as "How many requests per second is our system capable of serving?" Instead, we should try to understand how our whole system performs under various load conditions. In order to answer this question, we need to understand the infrastructure that makes up our system and the dependencies that a particular service has.
For example, is the service behind a load-balancer? How about a CDN? What other caching mechanisms are used? All of these questions and more can be answered by our systems having good observability.
Vegeta is an open source load testing utility designed to test HTTP services with a constant request rate. It's a versatile tool...
