{
  "spec": {
    "rows": 10000000,
    "job": "sort_string",
    "engine": "spark",
    "mode": "compute",
    "repeat": 2,
    "cores": 1,
    "heap": "96g",
    "memory": "128g",
    "kind": "single_core_supplement",
    "image_id": "sha256:215b09f971f3ac8d72022ea6e3157d80d88835ceb62899aecd829be0705e12b1"
  },
  "run_id": "0016-a0",
  "campaign": "20261026-single-core-completion-supplement",
  "role": "single-core timing and resource supplement",
  "seconds": 65.816656494,
  "source_hash": "68ab7d2564bcb09b20271dfa49f88ce8023df6f097c74c06fba624cf5b2cf3b3",
  "reference_campaign": "20261025T130534Z-full",
  "reference_run": "0219-a0",
  "correctness_matches_original": true,
  "worker_valid": true,
  "quality": {
    "sample_counts": {
      "cpu_cores": 13162,
      "memory_used_gib": 13163,
      "read_mib_s": 13162,
      "write_mib_s": 13162
    },
    "rate_span_fraction": 0.9998228427182344,
    "median_interval_seconds": 0.00499995332211256,
    "max_interval_seconds": 0.006508693564683199,
    "collector_compute_one_core_fraction": 0.05292111656257612,
    "valid": true,
    "minimum_rate_samples": 4,
    "minimum_rate_span_fraction": 0.45,
    "duration_seconds": 65.81665649381466,
    "cpu_resolution_note": "Sampling faster does not remove Linux CPU tick quantization; tiny-window peaks are not precise CPU demand."
  },
  "valid": true,
  "result_sha256": "43aa7862d91c51b18f199cd2df1c55bf327eec677365601e71a1f9928a05aa5a"
}