Load-test the gateway: many concurrent devices, message fan-out, presence churn, reconnect storms — across ≥2 nodes. Capture latency + memory under backpressure. Establish baselines and regression thresholds.
Acceptance criteria:
- Baseline latency/throughput captured
- No unbounded memory under slow consumers
- Regression thresholds enforced in CI (nightly)
Load-test the gateway: many concurrent devices, message fan-out, presence churn, reconnect storms — across ≥2 nodes. Capture latency + memory under backpressure. Establish baselines and regression thresholds.
Acceptance criteria: