{
  "cell": "dotnet-native/kernel/single",
  "source_report": "native-slot-single-kernel-scan-20260910.json",
  "analysis": "Read-only distribution analysis of the existing completed run; no new benchmark, discarded samples or changed gates",
  "raw_path": "/tmp/libhft-native-vma-slot-scan-20260910-emb5X9/native-single-kernel/single/dotnet-native/kernel/attempt-hmbaof0u/run/raw/single_dotnet-native_kernel_1.hftbrw",
  "raw_sha256": "899c4d5ad7d41dedf7ff2ee7fedfc682302d2b7b29ca20b34fd56415ac28d013",
  "method": "pacing_v4_audit.raw_capture validates the three 20000-sample service series and their bound raw hash; unweighted arithmetic mean, sample standard deviation and nearest-rank quantiles; histogram bin is floor(service_ns/1000)",
  "runs": [
    {
      "run": 1, "samples": 20000, "mean_ns": 24279.21305,
      "p45_p49_p50_p51_p55_ns": [24558,24797,24862,24933,25225],
      "quarter_medians_ns": [25172,24704,24780,24814],
      "below_23us_count": 8254, "bin_21_to_22us_count": 6293, "bin_26_to_27us_count": 4659
    },
    {
      "run": 2, "samples": 20000, "mean_ns": 23579.3589,
      "p45_p49_p50_p51_p55_ns": [21820,21994,22050,22114,23326],
      "quarter_medians_ns": [24388,22056,21828,21857],
      "below_23us_count": 10945, "bin_21_to_22us_count": 8817, "bin_26_to_27us_count": 3719
    },
    {
      "run": 3, "samples": 20000, "mean_ns": 23766.82205,
      "p45_p49_p50_p51_p55_ns": [22017,22265,22368,22520,24504],
      "quarter_medians_ns": [22337,22312,22152,23364],
      "below_23us_count": 10402, "bin_21_to_22us_count": 8393, "bin_26_to_27us_count": 3820
    }
  ],
  "sample_cv_percent": {"mean": 1.5173967312445384, "p50": 6.668334403140796},
  "interpretation": "The service distribution has concentrations near 21 and 26 microseconds. The share below 23 microseconds changes from 41.27 percent to 54.725 and 52.01 percent, crossing the median rank. Median variability is larger than mean variability; the gate is not evidence that every request or the whole engine slowed by 6.67 percent.",
  "limitations": [
    "This describes measured distribution shape, not the runtime cause of the two concentrations.",
    "The mean is not substituted for p50 in any matrix or stability gate.",
    "The median warning remains; neither statistical significance nor harmlessness is claimed."
  ]
}