When diagnosing the root cause of application performance issues, oftentimes IT and business stakeholders may hurt the process more than help it. If they lack application monitoring devices for instance, a database administrator may blame a network admin for a problem without any data to support. In these situations outside consultants may be brought in to help find the real issue. According to one such consultant, what is needed to find the performance issue fast is a clear, holistic picture of the entire IT environment.
What an expert really needs to know is transaction flow and the bird’s-eye view of what is going on. They are interested in where transaction streams converge – when all roads lead to Rome, it is often the case that Rome will be a bottleneck. They are also interested in where transactions need to wait for something from the slowest part of the system.
You can read more here: 3 Ways To Help Performance Experts Solve Your Problem Faster