{
  "format": "damnit.benchmark",
  "schema_version": 1,
  "record_id": "20261110T014421Z-laptop-irk4s2rh",
  "generated_at": "2026-11-10T01:44:21.994Z",
  "kind": "challenge-cli",
  "label": "published challenge reference",
  "status": "PASS",
  "source": {
    "git_commit": "7e0f3dc44d6394234e29fd2e767fea8232473dfa",
    "git_dirty": true,
    "hostname": "LAPTOP-IRK4S2RH"
  },
  "binary": {
    "path": "public/downloads/damnit-benchmark-cli.exe",
    "bytes": 458240,
    "sha256": "f8b3e97cd373f83b83f899e85268e7f1c81a3724dee577163da9a60d7c79edea"
  },
  "test": {
    "name": "damnit-open-hardware-challenge",
    "version": 1,
    "buffer_bytes": 39269171,
    "samples": 5,
    "passes": 8,
    "expected_checksum": 1945
  },
  "hardware": {
    "platform": "win32",
    "arch": "x64",
    "release": "10.0.26300",
    "hostname": "LAPTOP-IRK4S2RH",
    "cpu_model": "11th Gen Intel(R) Core(TM) i3-1115G4 @ 3.00GHz",
    "cpu_vendor": "GenuineIntel",
    "signature": "family 6, model 140, stepping 1",
    "logical_cpus": 4,
    "cache_line_bytes": 64,
    "avx2_silicon": true,
    "avx2_usable": true,
    "avx512f": true,
    "total_memory_bytes": 8379490304
  },
  "load": {
    "before": {
      "captured_at": "2026-11-10T01:44:17.707Z",
      "cpu_percent": 28,
      "cpu_source": "Win32_Processor LoadPercentage average",
      "free_memory_bytes": 2277904384,
      "total_memory_bytes": 8379490304,
      "load_average": null
    },
    "after": {
      "captured_at": "2026-11-10T01:44:20.490Z",
      "cpu_percent": 21,
      "cpu_source": "Win32_Processor LoadPercentage average",
      "free_memory_bytes": 2267488256,
      "total_memory_bytes": 8379490304,
      "load_average": null
    }
  },
  "results": {
    "single_gbps": 9.84,
    "peak_gbps": 19.85,
    "peak_threads": 4,
    "scaling": 2.02,
    "arena_ns_per_block": 0.676,
    "buffer_bytes": 39269171
  },
  "checksum": {
    "expected": 1945,
    "scalar": 1945,
    "single": 1945,
    "peak": 1945,
    "invariant": "MATCH",
    "match": true
  },
  "raw": {
    "stdout": "DAMNIT OPEN HARDWARE CHALLENGE\r\n===============================\r\n\r\n[1] PHYSICAL SYSTEM CORE TOPOLOGY (CPUID LANES)\r\n    vendor             GenuineIntel\r\n    signature          family 6, model 140, stepping 1\r\n    logical lanes      4 (OS-reported)\r\n    CPUID max leaf     27\r\n    cache line         64 bytes\r\n    AVX2 silicon       yes\r\n    AVX2 usable        yes\r\n    AVX-512F           yes\r\n\r\n[2] MONOTONIC ARENA ALLOCATION SPEED\r\n    0.676 ns/block, 500000 blocks, median of 7 runs\r\n\r\n[3] PEAK HARDWARE AVX2 THROUGHPUT\r\n    buffer             37.45 MiB (39269171 bytes), xorshift32\r\n    single thread      9.84 GB/s, median of 5 x 8 passes\r\n    peak (4 threads)  19.85 GB/s, median of 5 x 8 passes\r\n    scaling            2.02x over one thread\r\n    pass wall time     3.992 ms single, 1.978 ms peak\r\n\r\n[4] ARITHMETIC CHECKSUM INVARIANT VALIDATION\r\n    scalar checksum    1945\r\n    AVX2 single        1945\r\n    AVX2 peak          1945\r\n    invariant          MATCH\r\n\r\nRESULT: PASS\r\n",
    "stderr": "",
    "exit_code": 0,
    "duration_ms": 701
  },
  "publication": {
    "published": true,
    "published_at": "2026-11-10T01:44:22.100Z",
    "paths": [
      "/benchmarks/records/20261110T014421Z-laptop-irk4s2rh.json",
      "/benchmarks/index.json"
    ]
  },
  "notes": null
}