{
  "spec": {
    "rows": 10000000,
    "job": "group_multi",
    "engine": "pandas",
    "mode": "compute",
    "repeat": 1,
    "cores": 1,
    "heap": "96g",
    "memory": "128g",
    "kind": "single_core_supplement",
    "image_id": "sha256:215b09f971f3ac8d72022ea6e3157d80d88835ceb62899aecd829be0705e12b1"
  },
  "run_id": "0000-a0",
  "campaign": "20261026-single-core-completion-supplement",
  "role": "single-core timing and resource supplement",
  "seconds": 2.04379662,
  "source_hash": "68ab7d2564bcb09b20271dfa49f88ce8023df6f097c74c06fba624cf5b2cf3b3",
  "reference_campaign": "20261025T130534Z-full",
  "reference_run": "0161-a0",
  "correctness_matches_original": true,
  "worker_valid": true,
  "quality": {
    "sample_counts": {
      "cpu_cores": 408,
      "memory_used_gib": 409,
      "read_mib_s": 408,
      "write_mib_s": 408
    },
    "rate_span_fraction": 0.9956926021597371,
    "median_interval_seconds": 0.004999950644560158,
    "max_interval_seconds": 0.00501416705083102,
    "collector_compute_one_core_fraction": 0.0527927966216987,
    "valid": true,
    "minimum_rate_samples": 4,
    "minimum_rate_span_fraction": 0.45,
    "duration_seconds": 2.043796620098874,
    "cpu_resolution_note": "Sampling faster does not remove Linux CPU tick quantization; tiny-window peaks are not precise CPU demand."
  },
  "valid": true,
  "result_sha256": "41379ddd6de3fe7f7172823b11e1c1ec656d6fe84c03f0ef481b8b2e8e9791be"
}