{
  "probe": "perf_probe.gd",
  "baseline_source": "c366012 (autoload/simulation_runtime.gd, scripts/mana/mana_network_service.gd swapped in place)",
  "candidate_source": "working tree after ae0f998 + HUD change",
  "runs": [
    {
      "side": "BASE",
      "minutes": 1440,
      "save_ms_avg": 18.752,
      "save_ms_max": 20.915,
      "snapshot_ms_avg": 0.38877,
      "tick_day_ms_avg": 1005.434,
      "tick_day_ms_max": 1022.47,
      "trials": 5
    },
    {
      "side": "CAND",
      "minutes": 1440,
      "save_ms_avg": 19.2478,
      "save_ms_max": 21.626,
      "snapshot_ms_avg": 0.39343,
      "tick_day_ms_avg": 1013.9146,
      "tick_day_ms_max": 1037.407,
      "trials": 5
    },
    {
      "side": "BASE",
      "minutes": 1440,
      "save_ms_avg": 19.9272,
      "save_ms_max": 22.122,
      "snapshot_ms_avg": 0.39169,
      "tick_day_ms_avg": 1010.7658,
      "tick_day_ms_max": 1021.417,
      "trials": 5
    },
    {
      "side": "CAND",
      "minutes": 1440,
      "save_ms_avg": 16.6394,
      "save_ms_max": 20.276,
      "snapshot_ms_avg": 0.39521,
      "tick_day_ms_avg": 1016.2724,
      "tick_day_ms_max": 1036.077,
      "trials": 5
    },
    {
      "side": "BASE",
      "minutes": 1440,
      "save_ms_avg": 18.8624,
      "save_ms_max": 21.534,
      "snapshot_ms_avg": 0.38799,
      "tick_day_ms_avg": 1007.718,
      "tick_day_ms_max": 1034.979,
      "trials": 5
    },
    {
      "side": "CAND",
      "minutes": 1440,
      "save_ms_avg": 15.2772,
      "save_ms_max": 17.564,
      "snapshot_ms_avg": 0.40309,
      "tick_day_ms_avg": 1012.192,
      "tick_day_ms_max": 1053.282,
      "trials": 5
    }
  ],
  "base_mean": {
    "tick_day_ms_avg": 1007.973,
    "snapshot_ms_avg": 0.389,
    "save_ms_avg": 19.181
  },
  "cand_mean": {
    "tick_day_ms_avg": 1014.126,
    "snapshot_ms_avg": 0.397,
    "save_ms_avg": 17.055
  },
  "scope": "Ordinary new-game Runtime only, 1440 minutes x5 trials x3 runs, snapshot x20, disk save. Not rendering, Operations-heavy fixtures, or Windows."
}