{
  "id": "C08-N08",
  "title": "展厅电脑连续运行后越来越慢，怎样区分内存增长与缓存",
  "schema_version": "1.0",
  "evidence_kind": "合成输入与协议；非现场测试结果",
  "tool_versions": {
    "generator": "Python 3.12.4",
    "ffmpeg": "8.0.1（仅实际媒体生成与解码）"
  },
  "required_delivery": "固定节目与采样间隔下的内存、句柄、GPU 资源趋势表",
  "input": {
    "cache_demo_mib": [
      100,
      140,
      160,
      160
    ],
    "growth_demo_mib": [
      100,
      140,
      180,
      220
    ],
    "sample_interval_seconds": 60
  },
  "expected": {
    "last_step_cache_mib": 0,
    "last_step_growth_mib": 40,
    "memory_leak_proven": false
  },
  "measurement": null,
  "unmeasured": [
    "实体播放硬件",
    "显示刷新相位",
    "现场拍摄",
    "实际Windows目标机配置"
  ],
  "record_fields": [
    "timestamp",
    "boot_id",
    "pid",
    "phase",
    "cycle_index",
    "working_set_bytes",
    "private_bytes",
    "handles",
    "gpu_metric",
    "gpu_value",
    "probe_error"
  ]
}