{
  "systemInfo": {
    "platform": "darwin",
    "arch": "arm64",
    "cpuCores": 16,
    "totalMemory": 137438953472
  },
  "summary": {
    "sequential": {
      "count": 1,
      "avgDuration": 404,
      "minDuration": 404,
      "maxDuration": 404,
      "avgCPU": 0.4314356435643565,
      "avgMemoryPeak": 62224,
      "gpuUsed": false
    },
    "parallel-2": {
      "count": 1,
      "avgDuration": 201,
      "minDuration": 201,
      "maxDuration": 201,
      "avgCPU": 0.2482587064676617,
      "avgMemoryPeak": 30344,
      "gpuUsed": false
    },
    "parallel-4": {
      "count": 1,
      "avgDuration": 100,
      "minDuration": 100,
      "maxDuration": 100,
      "avgCPU": 0.8420000000000001,
      "avgMemoryPeak": 26040,
      "gpuUsed": false
    },
    "parallel-8": {
      "count": 1,
      "avgDuration": 100,
      "minDuration": 100,
      "maxDuration": 100,
      "avgCPU": 1.043,
      "avgMemoryPeak": 33776,
      "gpuUsed": false
    }
  },
  "detailed": [
    {
      "name": "sequential",
      "type": "sequential",
      "duration": 404,
      "cpuAvg": 0.4314356435643565,
      "memoryPeak": 62224,
      "gpuUsed": false,
      "downloadCount": 4,
      "timestamp": "2025-10-02T12:29:38.389Z"
    },
    {
      "name": "parallel-2",
      "type": "parallel-2",
      "duration": 201,
      "cpuAvg": 0.2482587064676617,
      "memoryPeak": 30344,
      "gpuUsed": false,
      "downloadCount": 4,
      "concurrency": 2,
      "timestamp": "2025-10-02T12:29:38.591Z"
    },
    {
      "name": "parallel-4",
      "type": "parallel-4",
      "duration": 100,
      "cpuAvg": 0.8420000000000001,
      "memoryPeak": 26040,
      "gpuUsed": false,
      "downloadCount": 4,
      "concurrency": 4,
      "timestamp": "2025-10-02T12:29:38.694Z"
    },
    {
      "name": "parallel-8",
      "type": "parallel-8",
      "duration": 100,
      "cpuAvg": 1.043,
      "memoryPeak": 33776,
      "gpuUsed": false,
      "downloadCount": 8,
      "concurrency": 8,
      "timestamp": "2025-10-02T12:29:38.795Z"
    }
  ],
  "recommendations": [
    {
      "level": "success",
      "category": "concurrency",
      "message": "Parallel downloads (2 concurrent) are 50.2% faster than sequential. Consider increasing default concurrency.",
      "value": {
        "improvement": 50.24752475247525,
        "optimalConcurrent": 2
      }
    },
    {
      "level": "success",
      "category": "concurrency",
      "message": "4 concurrent downloads are 50.2% faster than 2. Recommend maxConcurrent >= 4.",
      "value": {
        "improvement": 50.24875621890548,
        "optimalConcurrent": 4
      }
    },
    {
      "level": "info",
      "category": "concurrency",
      "message": "8 concurrent downloads show diminishing returns (0.0% improvement). Recommend maxConcurrent = 4 for balanced performance.",
      "value": {
        "improvement": 0,
        "optimalConcurrent": 4
      }
    },
    {
      "level": "info",
      "category": "cpu",
      "message": "CPU usage is low (0.6%). System can handle higher concurrency."
    }
  ],
  "generatedAt": "2025-10-02T12:29:38.802Z"
}