The Problem Statement
Defining the problem statement is a routine task completed as a first step when starting a investigation.
It is characterised as:
- What makes you think there is a performance problem?
- Has this system ever performed well?
- What changed recently? Software? Hardware? Load?
- Can the problem be expressed in terms of latency or runtime?
- Does the problem affect everyone or a subset of users?
- What is the environment? What software and hardware are used? Versions? Configuration?