{
  "stage": "UPLOAD",
  "status": "completed",
  "files_uploaded": 99,
  "files_failed": 0,
  "bytes_transferred": 11321226394,
  "duration_seconds": 4275.830909013748,
  "performance": {
    "memory_mb": {
      "peak": 3174.73828125,
      "avg": 2822.654802292934,
      "min": 2758.125
    },
    "cpu_percent": {
      "peak": 27.2,
      "avg": 5.418624239588208,
      "min": 1.1
    },
    "sample_count": 2137
  }
}