How to measure an application’s performance?
By following the Optimization Cycle, the first step to improving something in every work field is that we need to set a baseline. The starting point will be different for each company’s department. For instance, the sales team will measure the sales or the revenue over time to set its improvement goals.
So, we need to define what is worth measuring by defining our application’s metrics boundaries. It’s clear that our first challenge is choosing what to measure. The most common metrics are the following:
- HTTP response times and request rates
- Error ratings
- Process metrics such as CPU, memory, and Garbage Collector usage
Each bullet point is a KPI. Every KPI requires a different approach and a different analysis. Despite their differences, these measurements are strongly connected since inadequate resource management will impact the response latency, and a high error rating may increase...
