{
  "kind": "synthetic discrete-event simulation",
  "model_version": 1,
  "runtime": "3.12.14",
  "parameters": {
    "jobs": 2000,
    "base_service_ms": 100,
    "dependency_capacity": 8,
    "contention_penalty_ms": 2,
    "arrivals": "entire batch at time zero"
  },
  "service_time_rule": "100 + 2 * max(0, active_jobs_at_start - 8)^2 milliseconds",
  "limitations": [
    "Contention is assumed, not discovered.",
    "Service time is fixed at job start; later concurrency changes do not alter it.",
    "No real threads, database, network, retries, CPU or cloud costs are measured.",
    "p95 service time excludes waiting in the batch queue."
  ],
  "contention": [
    {
      "workers": 1,
      "inflight_limit": null,
      "completed": 2000,
      "simulated_seconds": 200.0,
      "useful_jobs_per_second": 10.0,
      "p95_service_ms": 100.0
    },
    {
      "workers": 4,
      "inflight_limit": null,
      "completed": 2000,
      "simulated_seconds": 50.0,
      "useful_jobs_per_second": 40.0,
      "p95_service_ms": 100.0
    },
    {
      "workers": 8,
      "inflight_limit": null,
      "completed": 2000,
      "simulated_seconds": 25.0,
      "useful_jobs_per_second": 80.0,
      "p95_service_ms": 100.0
    },
    {
      "workers": 16,
      "inflight_limit": null,
      "completed": 2000,
      "simulated_seconds": 28.5,
      "useful_jobs_per_second": 70.175,
      "p95_service_ms": 228.0
    },
    {
      "workers": 32,
      "inflight_limit": null,
      "completed": 2000,
      "simulated_seconds": 77.852,
      "useful_jobs_per_second": 25.69,
      "p95_service_ms": 1252.0
    }
  ],
  "no_contention_control": [
    {
      "workers": 1,
      "inflight_limit": null,
      "completed": 2000,
      "simulated_seconds": 200.0,
      "useful_jobs_per_second": 10.0,
      "p95_service_ms": 100.0
    },
    {
      "workers": 4,
      "inflight_limit": null,
      "completed": 2000,
      "simulated_seconds": 50.0,
      "useful_jobs_per_second": 40.0,
      "p95_service_ms": 100.0
    },
    {
      "workers": 8,
      "inflight_limit": null,
      "completed": 2000,
      "simulated_seconds": 25.0,
      "useful_jobs_per_second": 80.0,
      "p95_service_ms": 100.0
    },
    {
      "workers": 16,
      "inflight_limit": null,
      "completed": 2000,
      "simulated_seconds": 12.5,
      "useful_jobs_per_second": 160.0,
      "p95_service_ms": 100.0
    },
    {
      "workers": 32,
      "inflight_limit": null,
      "completed": 2000,
      "simulated_seconds": 6.3,
      "useful_jobs_per_second": 317.46,
      "p95_service_ms": 100.0
    }
  ],
  "bounded_control": {
    "workers": 32,
    "inflight_limit": 8,
    "completed": 2000,
    "simulated_seconds": 25.0,
    "useful_jobs_per_second": 80.0,
    "p95_service_ms": 100.0
  }
}