{
  "spec": {
    "rows": 10000000,
    "job": "distinct",
    "engine": "spark",
    "mode": "compute",
    "repeat": 0,
    "cores": 1,
    "heap": "96g",
    "memory": "128g",
    "kind": "single_core_supplement",
    "image_id": "sha256:215b09f971f3ac8d72022ea6e3157d80d88835ceb62899aecd829be0705e12b1"
  },
  "run_id": "0006-a0",
  "status": "completed",
  "source_hash": "68ab7d2564bcb09b20271dfa49f88ce8023df6f097c74c06fba624cf5b2cf3b3",
  "command": [
    "sudo",
    "-n",
    "docker",
    "run",
    "--name",
    "pb-2d933f72f49751bd",
    "--log-driver=none",
    "--network",
    "none",
    "--hostname",
    "localhost",
    "--user",
    "1001:1001",
    "-e",
    "HOME=/tmp",
    "-e",
    "JAVA_TOOL_OPTIONS=-Duser.home=/tmp",
    "-e",
    "SPARK_USER=benchmark",
    "-v",
    "/dev/shm/pb-ort0kmkq/passwd:/etc/passwd:ro",
    "-v",
    "/dev/shm/pb-ort0kmkq/group:/etc/group:ro",
    "--label",
    "pandas-spark-benchmark=worker-v1",
    "--cpuset-cpus",
    "0",
    "--memory",
    "128g",
    "--memory-swap",
    "128g",
    "-e",
    "OMP_NUM_THREADS=1",
    "-e",
    "OPENBLAS_NUM_THREADS=1",
    "-e",
    "MKL_NUM_THREADS=1",
    "-e",
    "SPARK_LOCAL_IP=127.0.0.1",
    "-v",
    "/data/pyspark-pandas-benchmark/data:/data:ro",
    "-v",
    "/dev/shm/pb-ort0kmkq:/control",
    "-v",
    "/data/pyspark-pandas-benchmark/results/20261026-single-core-completion-supplement/0006-a0/output:/output",
    "-v",
    "/data/pyspark-pandas-benchmark/results/20261026-single-core-completion-supplement/0006-a0/scratch:/scratch",
    "sha256:215b09f971f3ac8d72022ea6e3157d80d88835ceb62899aecd829be0705e12b1",
    "python",
    "-m",
    "benchlib.worker",
    "/control/spec.json"
  ],
  "exit_code": 0,
  "worker": {
    "compute_seconds": 4.985805992,
    "measurement_start": {
      "phase": "measurement_start",
      "utc_ns": 1793026599490868607,
      "monotonic_ns": 1655424147371726
    },
    "measurement_end": {
      "phase": "measurement_end",
      "utc_ns": 1793026604476674404,
      "monotonic_ns": 1655429133177718
    },
    "output_rows": 10000
  },
  "seconds": 4.985805992,
  "rows_per_second": 2005693.766673944,
  "clock_drift_seconds": -2.4210681193181927e-07,
  "measurement_utc": [
    1793026599.4908686,
    1793026604.4766743
  ],
  "metrics_quality": {
    "valid": true,
    "problems": [],
    "counter_resets": [],
    "minimum_measurement_samples": 5,
    "resolution_insufficient": true,
    "maximum_interval_seconds": 1.0
  },
  "valid": true,
  "signature": {
    "rows": 10000,
    "columns": [
      "id1",
      "id2"
    ],
    "unordered_hash_sums": [
      2132459463497951664,
      3667401444013289704
    ],
    "float_round_decimals": 6,
    "nulls": {
      "id1": 0,
      "id2": 0
    },
    "globally_ordered": true,
    "files": [
      {
        "path": "part-00000-6b821ec0-70f9-46f8-98dd-3616e32651f7-c000.snappy.parquet",
        "rows": 10000,
        "bytes": 19404,
        "sha256": "2ec2b46e78e8f9ef434cfe9546b06668abc3f4270255bf5839ff718880315b90"
      }
    ],
    "verification": "streaming probabilistic signature; small fixtures checked by full equality"
  }
}