LatencyLabWho it is for
For the people who own structural decisions
LatencyLab is aimed at the roles that make structural decisions which are expensive to undo. It is domain-agnostic: because it simulates the design rather than instrumenting code, the same tool models a web backend, a desktop or mobile UI, a microservice fan-out or an embedded pipeline. If you have ever said "we will profile it later", this is what later should have looked like.
It is for you if
- You are a senior engineer, architect or CTO validating an architecture before it hardens.
- You want to see where perceived latency actually comes from, not where you assume it does.
- You need to know which causal paths dominate latency most often and how contention shapes responsiveness.
- You want to test which architectural changes help before any code is written.
It is not for you if
- You want to tune code that already exists. Use a profiler.
- You want a dashboard that reassures you everything is fine.
- You want generated recommendations. It does not tell you how to make a function faster.
- You want to reason about latency without committing to explicit structure. This will feel uncomfortable; that is intentional.
The rest of the site
Where to next
Every page answers one question.