{
  "generated_utc": "2026-10-02T22:06:16.420957+00:00",
  "hardware": {
    "arch": "arm64",
    "cpu_threads": 12,
    "gpu": "Apple M4 Pro (MPS)",
    "machine": "Apple M4 Pro",
    "os": "macOS-26.6.2-arm64-arm-64bit"
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  "inputs": {
    "native_library": {
      "sha256": "6084e1f6a79ce8e85e97d988ff27502e8d0e0a5af43e9ee87cf6a2f833c0bbd5",
      "source": "build/libsemq.1.0.0.dylib"
    }
  },
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    "config": "semq_quant4",
    "dim": 768,
    "method": {
      "candidate": "1 row in 100 moved by 0.5 x a random unit row, renormalized",
      "concat_parts": 10,
      "ids": "u64, 0..rows-1; empty manifest",
      "inputs": "random unit rows, numpy default_rng([20260928, dim, chunk]), generated in chunks of 100,000 rows",
      "nulls": "3 rebuilds; null k moves rows with id % 1000 == k by 0.01 x a random unit row, renormalized",
      "process": "one fresh Python subprocess per operation; peak_rss_bytes is that process's ru_maxrss after the operation, peak_rss_before_bytes the same just before it (after setup); the encode peak includes one float32 input chunk",
      "timing": "single wall-clock run per operation"
    },
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          "semq_bytes": 29600096,
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            "unchanged_rows": 99000
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            "peak_rss_bytes": 402358272,
            "seconds": 0.13182862498797476,
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          },
          "floor": {
            "floor_changed_rows": 100,
            "floor_hamming": 18,
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              100,
              100
            ],
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            "peak_rss_bytes": 185516032,
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            "timed": "Floor.measure over 3 null diffs (diffs built untimed)"
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          "gate": {
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            "peak_rss_before_bytes": 37355520,
            "peak_rss_bytes": 185761792,
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            "timed": "Encoding.load from a path (file in the OS page cache)"
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            "peak_rss_bytes": 96288768,
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            "timed": "Encoding.save to a path (atomic write with fsync)"
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            "seconds": 0.04888045787811279,
            "timed": "Encoding.diff against a copy with 1 row in 100 changed",
            "unchanged_rows": 990000
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            "peak_rss_bytes": 685424640,
            "seconds": 1.4705870833713561,
            "timed": "Codec.encode per chunk plus one Encoding.concat; vector generation excluded"
          },
          "floor": {
            "floor_changed_rows": 1000,
            "floor_hamming": 21,
            "null_changed_rows": [
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              1000,
              1000
            ],
            "nulls": 3,
            "peak_rss_before_bytes": 1296056320,
            "peak_rss_bytes": 1296629760,
            "seconds": 0.01469450001604855,
            "timed": "Floor.measure over 3 null diffs (diffs built untimed)"
          },
          "gate": {
            "candidate_changed_rows": 10000,
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            "peak_rss_before_bytes": 37519360,
            "peak_rss_bytes": 1527693312,
            "seconds": 1.081432375125587,
            "timed": "load reference, three nulls and candidate; diff nulls; Floor.measure; diff candidate; Diff.within",
            "within_floor": false
          },
          "load": {
            "peak_rss_before_bytes": 32686080,
            "peak_rss_bytes": 629374976,
            "seconds": 0.23981666704639792,
            "timed": "Encoding.load from a path (file in the OS page cache)"
          },
          "save": {
            "peak_rss_before_bytes": 629243904,
            "peak_rss_bytes": 629276672,
            "seconds": 0.1858544999267906,
            "timed": "Encoding.save to a path (atomic write with fsync)"
          }
        }
      }
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  },
  "schema": "semq-bench/scale/1",
  "sdk_commit": "c755a7754198fa1d4d0d70e459effec4e7795b17",
  "working_tree_dirty": false
}