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              "warmup": true,
              "rows": 262144,
              "seconds": 1.188061
            },
            {
              "engine": "native_enabled_fallback",
              "trial": 0,
              "warmup": true,
              "rows": 262144,
              "seconds": 1.123464
            },
            {
              "engine": "native_enabled_fallback",
              "trial": 1,
              "warmup": true,
              "rows": 262144,
              "seconds": 1.016131
            },
            {
              "engine": "stock",
              "trial": 1,
              "warmup": true,
              "rows": 262144,
              "seconds": 1.030555
            },
            {
              "engine": "stock",
              "trial": 2,
              "warmup": false,
              "rows": 262144,
              "seconds": 1.02285
            },
            {
              "engine": "native_enabled_fallback",
              "trial": 2,
              "warmup": false,
              "rows": 262144,
              "seconds": 1.021093
            },
            {
              "engine": "native_enabled_fallback",
              "trial": 3,
              "warmup": false,
              "rows": 262144,
              "seconds": 1.017885
            },
            {
              "engine": "stock",
              "trial": 3,
              "warmup": false,
              "rows": 262144,
              "seconds": 1.017737
            },
            {
              "engine": "stock",
              "trial": 4,
              "warmup": false,
              "rows": 262144,
              "seconds": 1.02453
            },
            {
              "engine": "native_enabled_fallback",
              "trial": 4,
              "warmup": false,
              "rows": 262144,
              "seconds": 1.025192
            },
            {
              "engine": "native_enabled_fallback",
              "trial": 5,
              "warmup": false,
              "rows": 262144,
              "seconds": 1.005476
            },
            {
              "engine": "stock",
              "trial": 5,
              "warmup": false,
              "rows": 262144,
              "seconds": 1.018084
            },
            {
              "engine": "stock",
              "trial": 6,
              "warmup": false,
              "rows": 262144,
              "seconds": 1.019907
            },
            {
              "engine": "native_enabled_fallback",
              "trial": 6,
              "warmup": false,
              "rows": 262144,
              "seconds": 1.034117
            }
          ]
        },
        {
          "case": "JVM_MIXED_PRIMITIVE_DOUBLE:map",
          "rows": 262144,
          "stock": {
            "samples_seconds": [
              0.228037909,
              0.222675457,
              0.220624178,
              0.229159941,
              0.221142898
            ],
            "median_seconds": 0.222675457,
            "minimum_seconds": 0.220624178,
            "maximum_seconds": 0.229159941
          },
          "native_enabled": {
            "samples_seconds": [
              0.224493137,
              0.223149618,
              0.222182666,
              0.221911808,
              0.21671584
            ],
            "median_seconds": 0.222182666,
            "minimum_seconds": 0.21671584,
            "maximum_seconds": 0.224493137
          },
          "trials": [
            {
              "engine": "stock",
              "trial": 0,
              "warmup": true,
              "rows": 262144,
              "seconds": 0.268253
            },
            {
              "engine": "native_enabled_fallback",
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              "rows": 262144,
              "seconds": 0.215648
            },
            {
              "engine": "native_enabled_fallback",
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              "rows": 262144,
              "seconds": 0.22874
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            {
              "engine": "stock",
              "trial": 1,
              "warmup": true,
              "rows": 262144,
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            {
              "engine": "stock",
              "trial": 2,
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              "rows": 262144,
              "seconds": 0.228038
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            {
              "engine": "native_enabled_fallback",
              "trial": 2,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.224493
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            {
              "engine": "native_enabled_fallback",
              "trial": 3,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.22315
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            {
              "engine": "stock",
              "trial": 3,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.222675
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            {
              "engine": "stock",
              "trial": 4,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.220624
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            {
              "engine": "native_enabled_fallback",
              "trial": 4,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.222183
            },
            {
              "engine": "native_enabled_fallback",
              "trial": 5,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.221912
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            {
              "engine": "stock",
              "trial": 5,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.22916
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            {
              "engine": "stock",
              "trial": 6,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.221143
            },
            {
              "engine": "native_enabled_fallback",
              "trial": 6,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.216716
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          ]
        },
        {
          "case": "JVM_MIXED_PRIMITIVE_FLOAT:row",
          "rows": 262144,
          "stock": {
            "samples_seconds": [
              0.147028774,
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              0.135599643,
              0.143178224
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            "median_seconds": 0.141320803,
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          "native_enabled": {
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            "median_seconds": 0.141168155,
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          "trials": [
            {
              "engine": "stock",
              "trial": 0,
              "warmup": true,
              "rows": 262144,
              "seconds": 0.156674
            },
            {
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              "rows": 262144,
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            {
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              "rows": 262144,
              "seconds": 0.13724
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            {
              "engine": "stock",
              "trial": 1,
              "warmup": true,
              "rows": 262144,
              "seconds": 0.133293
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            {
              "engine": "stock",
              "trial": 2,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.147029
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            {
              "engine": "native_enabled_fallback",
              "trial": 2,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.143439
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            {
              "engine": "native_enabled_fallback",
              "trial": 3,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.14251
            },
            {
              "engine": "stock",
              "trial": 3,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.141321
            },
            {
              "engine": "stock",
              "trial": 4,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.138837
            },
            {
              "engine": "native_enabled_fallback",
              "trial": 4,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.137594
            },
            {
              "engine": "native_enabled_fallback",
              "trial": 5,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.134735
            },
            {
              "engine": "stock",
              "trial": 5,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.1356
            },
            {
              "engine": "stock",
              "trial": 6,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.143178
            },
            {
              "engine": "native_enabled_fallback",
              "trial": 6,
              "warmup": false,
              "rows": 262144,
              "seconds": 0.141168
            }
          ]
        }
      ]
    }
  ],
  "limits": [
    "Short complete-job measurements include startup and JIT variability; they do not establish sustained throughput.",
    "Prior production runs in a separate JVM with its own stock controls; ranges and all trials remain visible.",
    "No builds or tests from this goal overlap timings. Other local Java activity was sampled once per second; this is not an exclusive CPU reservation.",
    "Slower verified UDF coverage follows the accepted maintainer performance exception."
  ],
  "bounded_profile": {
    "passes": 1,
    "optimization_changes": 0,
    "case": "INT:list",
    "flink_version": "2.2.1",
    "rows": 1048576,
    "warmup_pairs": 1,
    "measured_pairs": 1,
    "jfr_settings": "profile",
    "timings_excluded_from_main_comparison": true,
    "sampling": {
      "all_execution_native_samples": 2615,
      "table_operator_stack_samples": 41,
      "leaf": [
        [
          "tech.streamfusion.FlinkMixedPrimitiveTableFunctionSqlHarnessTest$BaseRows.emit",
          6
        ],
        [
          "tech.streamfusion.arrow.writers.IntWriter$IntWriterForRow.isNullAt",
          5
        ],
        [
          "tech.streamfusion.FlinkMixedPrimitiveTableFunctionSqlHarnessTest$IntRows.eval",
          4
        ],
        [
          "tech.streamfusion.arrow.writers.IntWriter.doWrite",
          3
        ],
        [
          "tech.streamfusion.arrow.writers.ArrowFieldWriter.write",
          3
        ],
        [
          "org.apache.arrow.vector.complex.ListVector.startNewValue",
          3
        ],
        [
          "java.util.Arrays$ArrayList.toArray",
          3
        ],
        [
          "ColumnarJvmTableFunction$12.processElement",
          2
        ],
        [
          "org.apache.flink.table.data.columnar.ColumnarRowData.getInt",
          1
        ],
        [
          "org.apache.arrow.vector.BaseFixedWidthVector.setValueCount",
          1
        ],
        [
          "java.util.stream.ReferencePipeline.collect",
          1
        ],
        [
          "org.apache.arrow.vector.complex.ListVector.setValueCount",
          1
        ],
        [
          "tech.streamfusion.operator.NativeColumnarTableFunctionOperator.flush",
          1
        ],
        [
          "tech.streamfusion.arrow.writers.ArrowFieldWriter.finish",
          1
        ],
        [
          "java.util.ArrayList.<init>",
          1
        ]
      ],
      "inclusive": [
        [
          "tech.streamfusion.operator.NativeColumnarTableFunctionOperator.processElement",
          22
        ],
        [
          "org.apache.flink.streaming.runtime.io.RecordProcessorUtils$$Lambda$3151+0x0000746d30da4b28.1214381452.accept",
          19
        ],
        [
          "tech.streamfusion.operator.NativeColumnarTableFunctionOperator.append",
          19
        ],
        [
          "ColumnarJvmTableFunction$12.processElement",
          18
        ],
        [
          "tech.streamfusion.arrow.writers.ArrowFieldWriter.write",
          14
        ],
        [
          "tech.streamfusion.arrow.ArrowWriter.write",
          14
        ],
        [
          "tech.streamfusion.FlinkMixedPrimitiveTableFunctionSqlHarnessTest$IntRows.eval",
          10
        ],
        [
          "org.apache.flink.streaming.runtime.tasks.ChainingOutput.pushToOperator",
          9
        ],
        [
          "tech.streamfusion.operator.NativeColumnarTableFunctionOperator$1.collect",
          9
        ],
        [
          "tech.streamfusion.arrow.writers.IntWriter.doWrite",
          8
        ],
        [
          "tech.streamfusion.operator.NativeColumnarTableFunctionOperator.flush",
          7
        ],
        [
          "tech.streamfusion.FlinkMixedPrimitiveTableFunctionSqlHarnessTest$BaseRows.emit",
          6
        ],
        [
          "tech.streamfusion.arrow.writers.IntWriter$IntWriterForRow.isNullAt",
          5
        ],
        [
          "org.apache.flink.table.data.conversion.ArrayListConverter.toExternal",
          5
        ],
        [
          "org.apache.flink.streaming.runtime.tasks.ChainingOutput.collect",
          4
        ],
        [
          "java.util.ArrayList.<init>",
          4
        ],
        [
          "tech.streamfusion.arrow.ArrowWriter.finish",
          3
        ],
        [
          "org.apache.arrow.vector.complex.ListVector.startNewValue",
          3
        ],
        [
          "tech.streamfusion.arrow.writers.ArrayWriter.doWrite",
          3
        ],
        [
          "java.util.Arrays$ArrayList.toArray",
          3
        ],
        [
          "tech.streamfusion.arrow.writers.ArrowFieldWriter.finish",
          2
        ],
        [
          "org.apache.arrow.vector.VectorSchemaRoot.setRowCount",
          2
        ],
        [
          "org.apache.flink.table.data.columnar.ColumnarRowData.getInt",
          1
        ],
        [
          "org.apache.arrow.vector.BaseFixedWidthVector.setValueCount",
          1
        ],
        [
          "java.util.stream.ReferencePipeline.collect",
          1
        ]
      ]
    },
    "finding": "41 sampled stacks contain the table-function operator, distributed among generated callbacks, released List conversion and owned Arrow writes; too sparse for precise attribution or an easy safe change. Stop after one pass."
  }
}