Performance Metrics)

Performance Metrics)

Before we start to travel this book, I must first understand the performance indicators of this book and the results to be optimized. In chapter 2, we will explore more performance testing tools and performance indicators, however, you must use these tools and understand the significance of these performance indicators.

The performance metrics of applications vary depending on different business scenarios and operation methods. Sometimes, our applications define important performance indicators. For example, webserver needs to bear the concurrent requests of millions of users and establishes a service cluster and system load balancing, to ensure that the architecture of the application system is scalable, but we can see countless examples of failure in the production environment after the application is re-designed and the run stress test is passed.