The interesting part of Performance Testing is not the checklist itself. It is the moment when the team realizes a quick pass and a trustworthy pass are not the same thing.
My checklist for Performance Testing is not meant to turn testing into box-ticking. It exists so pressure does not erase the few important questions that protect latency, throughput, graceful degradation, and the moments where slowness becomes failure. That difference matters because the feature technically works, but real users abandon it before it finishes loading.
A good checklist keeps important risk visible when the room gets busy.
Before I Start
- Make the change area explicit
- Write down the most expensive failure in one sentence
- Confirm which users under peak traffic and teams planning scale should review open risk
- Choose the environment that will tell the truth fastest
During the Check
- Exercise the normal path that should protect latency, throughput, graceful degradation, and the moments where slowness becomes failure
- Run an awkward-path example based on an endpoint meets average response goals while long-tail requests still stall checkout
- Watch for mismatches between visible success and hidden state
- Capture the one detail that will matter during sign-off later
Before I Close the Work
I finish by asking whether the evidence would still make sense to someone who was not present during testing. For this topic, the evidence I want usually looks like baseline timings, load profiles, and slow-path investigation notes.
If the answer is yes, the checklist did its job. If the answer is no, I am not done yet. When the conversation gets better, the testing usually gets faster as well.