{
  "clock_id": 1,
  "submitted": 1049,
  "presented": 1047,
  "discarded": 2,
  "unresolved_at_log_end": 0,
  "unique_presented_video_frames": 1047,
  "unique_presented_pts": 1047,
  "presentation_span_s": 34.909953,
  "presentation_events_per_s": 29.96280172591467,
  "interval_ms": {
    "median": 38.32,
    "p95": 38.324,
    "max": 76.64
  },
  "sequence_first": 35293,
  "sequence_last": 37115,
  "flags_counts": {
    "7": 1047
  },
  "all_hardware_completion": true,
  "submit_to_present_ms": {
    "min": 2.890896,
    "max": 45.754741,
    "mean": 14.288315160458453
  },
  "evidence_level": "hardware-signalled compositor presentation",
  "limitations": "Not a photon measurement. Rates count surface updates, not decoder throughput. Driver event correctness requires a separate source/hardware audit."
}