{
  "date": "2026-11-09",
  "base_revision": "4e3a20ce3688d056e4d8c3006e668f90edf0e4cf",
  "local_changes": true,
  "flink": "2.2.1",
  "jdk": "17.0.17",
  "datafusion": "54.0.0",
  "arrow": "58.4.1",
  "cpu": "Apple M4",
  "cpus": 10,
  "physical_memory_bytes": 17179869184,
  "jvm_max_heap": "8g",
  "parallelism": 1,
  "taskmanager_task_off_heap_authority": "48g",
  "native_profile": "release; codegen-units=1; mimalloc; no optional RocksDB backend",
  "boundary": "Complete INSERT into rowwise blackhole, deterministic rowwise datagen, planning/startup/JNI/transposes/transport/completion included.",
  "previous_behavior": "Stock batch Flink; same as native.enabled=false control.",
  "limitations": [
    "No peak RSS measurement.",
    "Batch-size experiment has substantially slower stock controls and does not establish before/after effects.",
    "JFR diagnostic is separate from unprofiled timings.",
    "Unrestricted candidate timings predate the final performance admission rule."
  ],
  "source_sha256": {
    "src/main/java/tech/streamfusion/planner/BatchPhysicalNativeCalc.java": "ef1542a1b6fcfecaf5d258d1afc518127f246ec0902398906efcc54a4370556c",
    "src/main/java/tech/streamfusion/planner/BatchPhysicalRowDataToArrow.java": "4cb76f49592bd7dff7cbac46ae39b390d417d4a4f68a72fc2a81f13f92f13aee",
    "src/main/java/tech/streamfusion/planner/BatchPhysicalNativeSingleRel.java": "128efb51daaf44e6b57e43ab7117c559e2d9292597f180fcacdf4627af3973c2",
    "src/main/java/tech/streamfusion/planner/BatchPhysicalArrowToRowData.java": "0f0942faaacd2669db8f40ba7db6b4eca6caf8ad4ee9b705e8103ab3f9623f93",
    "src/main/java/tech/streamfusion/planner/BatchPlanScan.java": "12ff13793f6c12a2e30fb951a97310947cde5f13869db578da4737c1d8d63725",
    "src/main/java/tech/streamfusion/planner/BatchPhysicalNativeUnion.java": "e0a860de6a965ba10cc28b1f10e2b2e3de362cae2868f4fa0bd9a5d07c80d628",
    "src/main/java/tech/streamfusion/planner/BatchNativeExecNode.java": "e50a5f6294219103361e562333157cefda533122e4c7fc83563de2cf28165c93",
    "src/main/java/tech/streamfusion/planner/NativeBatchPlanner.java": "75cd5cf03cd4a6016575acf62a7a70b4f79e8f8cbde876d8610506b70983d333",
    "src/main/java/tech/streamfusion/operator/RowDataToArrowOperator.java": "89712bf4f18e1e2e860d0300afa56b225d11e21f478286adead8f4306453a004",
    "src/test/java/tech/streamfusion/BatchSqlBenchmark.java": "5699688bfe6ad8540bb304ba7f43de97b560a233f8c0b5a00ed426e8ca6e1362",
    "src/main/java/tech/streamfusion/planner/RexExpression.java": "68d9b37b480c6aa725b74eb1b049f1426e67c841c682488d4bc80e175437f927",
    "native/Cargo.lock": "12b294570b2bb3104dff9045c46f891c8462e7eb0db7799c2a86a7b26bb28a11",
    "native/engine/src/calc.rs": "70742a836c388aac9072d23e345544eda05082c5e372e45224028975cb8e1adb",
    "native/engine/src/memory.rs": "c3965ef42321312d808d7df8afcdaeb65740235ce9494940ba5b116fd1859c0b"
  },
  "runs": [
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      "description": "initial unrestricted candidate",
      "query": "arithmetic",
      "rows": 262144,
      "batch_rows": 1024,
      "warmups": 2,
      "profiled": false,
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      "description": "initial unrestricted candidate",
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      "rows": 2000000,
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      "warmups": 2,
      "profiled": false,
      "route": "unrestricted_candidate",
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      "description": "initial unrestricted candidate",
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      "warmups": 2,
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      "route": "unrestricted_candidate",
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      "stock_median_ms": 1277.97375,
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    {
      "description": "initial unrestricted candidate",
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      "description": "batch-size experiment; stock controls also slowed",
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      "route": "unrestricted_candidate",
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      "batch_rows": 8192,
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      "route": "unrestricted_candidate",
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    {
      "description": "bounded timer change; JFR diagnostic",
      "query": "arithmetic",
      "rows": 2000000,
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      "warmups": 2,
      "profiled": true,
      "route": "unrestricted_candidate",
      "stock_ns": [
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      "enabled_ns": [
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      "description": "bounded timer change; unrestricted arithmetic candidate",
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      "description": "final admission policy",
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      "route": "stock_fallback",
      "stock_ns": [
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      "description": "final admission policy",
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      "profiled": false,
      "route": "native",
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      "enabled_runtime_ms": [
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    {
      "description": "final admission policy",
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      "rows": 2000000,
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      "warmups": 2,
      "profiled": false,
      "route": "stock_fallback",
      "stock_ns": [
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      "enabled_runtime_ms": [
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    {
      "description": "UDF performance exception",
      "query": "udf",
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      "stock_ns": [
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      "enabled_runtime_ms": [
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    },
    {
      "description": "Final-source SHA-256 repeat; controls show host variability",
      "query": "hash",
      "rows": 2000000,
      "batch_rows": 1024,
      "warmups": 2,
      "profiled": false,
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      "stock_ns": [
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  ],
  "fingerprint_scope": "Source files at checkpoint evidence capture; timing cohorts are labelled separately and do not isolate each intervening change."
}