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Simulation run on this device. Scenario values are not sent anywhere — the engine is fully local.

system design simulation · free

Architecture Bottleneck Simulator

Propagate traffic math through a service graph and expose the capacity cliff.

Which dependency reaches instability first as traffic grows?

Engine 1.0.0 · simulation
rps
10020000
rps
5010000
099
rps
10020000
DB QPS after cache
600
Bottleneck
none
Headroom factor
1.67×
Cache saves
2400 rps

No layer saturates — scale elsewhere or cut latency.

demand 3000 → db 600 / cap 1200

Method

  • Deterministic local model of the mechanism — knobs recompute outputs instantly with no network.
  • Numbers are teaching approximations, not production capacity guarantees.

Sources

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