{
  "schema": "field_replay.selfcheck.v1",
  "udp_ceiling_mbps": 942.0,
  "latency_floor_ms": 0.08,
  "latency_onset_mbps": 760.0,
  "grade": "strong",
  "verdict": "本机 UDP 处理很强(约 942 Mbps),不会拖累测试;负载测试的拐点基本反映网络本身。",
  "rtt_curve": [
    {"mbps": 5.0, "rtt_p50_ms": 0.08, "loss_pct": 0.0},
    {"mbps": 200.0, "rtt_p50_ms": 0.09, "loss_pct": 0.0},
    {"mbps": 760.0, "rtt_p50_ms": 0.42, "loss_pct": 0.0},
    {"mbps": 942.0, "rtt_p50_ms": 1.85, "loss_pct": 0.7}
  ],
  "hostname": "agent-a.local",
  "platform": "Darwin"
}
