{
  "title": "Experimental compiler: program execution benchmark snapshot",
  "date": "2026-08-08",
  "metric": "Clang C-reference execution time divided by Numaro program execution time; higher is faster. Compilation time is not measured.",
  "comparison": "Equivalent benchmark computations written for a custom source language and as C reference programs; all compared checksums match. This is not a drop-in C or Rust compiler comparison.",
  "baseline": "Clang 21 -O2; secondary baseline Clang -O3 -march=native",
  "platform": "x86-64 CPU; pinned to core 7. The timing artifact does not record a CPU model.",
  "timing": "One warmup, then the minimum of five process executions measured with a wall clock. Includes process startup.",
  "scope": "One historical benchmark suite. Geometric means include large algorithmic gains and short-running cases. The distribution and the subset excluding Numaro runtimes below 1 ms are reported separately. This snapshot is not a new benchmark run.",
  "source": {
    "repository": "unnir/autoresearch",
    "revision": "5cb13aa3258d5d711b61283c94a3deb014fc785e",
    "input_git_blob": "14030648acb27f83a72769b1018752b3fa3c2e2c",
    "input_sha256": "b277eab4bce1733e36c4082a73e049876ebabd3fae6c01cb6738c1c691fe9f8b"
  },
  "summary": {
    "benchmarks": 80,
    "geometric_mean_execution_speedup_vs_clang_o2": 2.9298043903822637,
    "geometric_mean_execution_speedup_vs_clang_o3_native": 2.4818116662903225,
    "median_runtime_ratio_vs_clang_o2": 0.9733024640254533,
    "wins": 41,
    "ties_within_2_percent": 7,
    "losses": 32,
    "numaro_runtime_at_least_1ms": {
      "benchmarks": 66,
      "geometric_mean_execution_speedup_vs_clang_o2": 1.1662888926341457
    }
  },
  "cases": [
    {
      "benchmark": "affine_two_phase",
      "category": "A-numeric",
      "input_size": 800000000,
      "numaro_runtime_ms": 0.7011820562183857,
      "clang_o2_runtime_ms": 2161.285006906837,
      "clang_o3_native_runtime_ms": 1766.1127040628344,
      "speedup_vs_clang_o2": 3082.3450026132687,
      "checksums_match": true
    },
    {
      "benchmark": "bf_vm",
      "category": "A-vm",
      "input_size": 2000000,
      "numaro_runtime_ms": 158.93065091222525,
      "clang_o2_runtime_ms": 174.94471394456923,
      "clang_o3_native_runtime_ms": 126.21160806156695,
      "speedup_vs_clang_o2": 1.1007613253983857,
      "checksums_match": true
    },
    {
      "benchmark": "bfs",
      "category": "A-graph",
      "input_size": 2000000,
      "numaro_runtime_ms": 110.18720897845924,
      "clang_o2_runtime_ms": 88.80484593100846,
      "clang_o3_native_runtime_ms": 87.501450907439,
      "speedup_vs_clang_o2": 0.805945143309412,
      "checksums_match": true
    },
    {
      "benchmark": "bignum",
      "category": "A-numeric",
      "input_size": 1600,
      "numaro_runtime_ms": 2.0813511218875647,
      "clang_o2_runtime_ms": 2.6594579685479403,
      "clang_o3_native_runtime_ms": 2.615211997181177,
      "speedup_vs_clang_o2": 1.2777555601171675,
      "checksums_match": true
    },
    {
      "benchmark": "branch_random",
      "category": "C-perf",
      "input_size": 20,
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      "clang_o2_runtime_ms": 52.10178787820041,
      "clang_o3_native_runtime_ms": 48.3231320977211,
      "speedup_vs_clang_o2": 0.7212467824935884,
      "checksums_match": true
    },
    {
      "benchmark": "branch_sorted",
      "category": "C-perf",
      "input_size": 20,
      "numaro_runtime_ms": 69.20449412427843,
      "clang_o2_runtime_ms": 48.44897100701928,
      "clang_o3_native_runtime_ms": 48.44896984286606,
      "speedup_vs_clang_o2": 0.7000841725685317,
      "checksums_match": true
    },
    {
      "benchmark": "bsearch",
      "category": "A-hash",
      "input_size": 4000000,
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      "clang_o2_runtime_ms": 341.53004502877593,
      "clang_o3_native_runtime_ms": 329.0472161024809,
      "speedup_vs_clang_o2": 1.7327329626868302,
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    {
      "benchmark": "bulk_free",
      "category": "B-mem",
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      "clang_o3_native_runtime_ms": 105.50130298361182,
      "speedup_vs_clang_o2": 4.7914909736064715,
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    {
      "benchmark": "calcvm",
      "category": "A-vm",
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      "clang_o3_native_runtime_ms": 73.17054201848805,
      "speedup_vs_clang_o2": 4.987890302913035,
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      "benchmark": "chain_add",
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    {
      "benchmark": "chain_mul",
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      "benchmark": "chase_dram",
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      "benchmark": "churn_fifo",
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      "benchmark": "churn_lifo",
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      "benchmark": "churn_random",
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      "speedup_vs_clang_o2": 3.6886605559200287,
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      "benchmark": "churn_small",
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    {
      "benchmark": "coins",
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      "benchmark": "concomp",
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      "benchmark": "crc",
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