Load Generation, Replay, and Deterministic Tests
Useful load reproduces arrival timing, data shape, dependencies, and bursts without letting the system under test secretly pace its generator.
Planned model
Replay one trace in wall-clock, accelerated, closed-loop, and deterministic-step modes. Show scheduling error, backlog, nondeterminism, and state divergence.
Questions
- Which properties of production traffic must the generator preserve?
- How are randomness and time controlled for repeatability?
- Can replay overload be distinguished from generator overload?
Exercise
Design a deterministic replay format containing enough information to reproduce both inputs and relevant timing decisions.