{
  "date": "2026-11-12",
  "format": "PoolFS raw v2 on two dedicated VHDX GPT basic-data partitions",
  "members": [
    {
      "disk_number_at_test": 1,
      "partition_bytes": 10718543872,
      "poolfs_usable_member_bytes": 10701766656
    },
    {
      "disk_number_at_test": 2,
      "partition_bytes": 8571060224,
      "poolfs_usable_member_bytes": 8554283008
    }
  ],
  "method": {
    "mount": "WinFsp P: in an elevated session before the global mount-point change",
    "sequential_size_mib": 8,
    "small_writes": 128,
    "flushes": 64,
    "full_file_overwrites": 16,
    "overwritten_read_samples": 9,
    "metadata_files": 40,
    "first_run_source": "rounded stderr summary; JSON was lost by a PowerShell capture error after the benchmark succeeded",
    "second_run_source": "full JSON stdout from poolfs-bench.exe"
  },
  "runs": [
    {
      "run": 1,
      "precision": "two decimal places",
      "seq_write_mib_s": 247.51,
      "seq_read_mib_s": 1155.3,
      "small_write_ms_mean": 2.15,
      "clean_flush_ms_mean": 0.03,
      "overwrite_read_ms_median": 0.69,
      "create_ms_mean": 1.47,
      "delete_ms_mean": 1.65
    },
    {
      "run": 2,
      "precision": "three decimal places",
      "seq_write_mib_s": 428.249,
      "seq_read_mib_s": 1268.372,
      "small_write_ms_mean": 1.704,
      "clean_flush_ms_mean": 0.024,
      "overwrite_read_ms_median": 0.801,
      "create_ms_mean": 1.809,
      "delete_ms_mean": 1.912
    }
  ]
}