Load Test Harness

Turn "will it scale?" into a measured answer. Arm of scale-readiness-review; use deterministic-test-harness for seeded data.

Quick Start

1. Define the target: path, throughput, p95/p99 latency, error budget.
2. Seed realistic data at scale; isolate the env.
3. Pick an available load tool.
4. Run baseline, then target load, then push to breaking point.
5. Report percentiles and the first bottleneck -- not averages.

Choose the Tool

• HTTP APIs: k6, vegeta, wrk, locust, or the language's lib.
• Workers/queues: enqueue a burst, measure drain rate.
• Database/query: EXPLAIN ANALYZE plus a timed batch loop.
• Pure functions: benchmark framework (go test -bench, pytest-benchmark).