After merging your PR, Conbench analyzed the 4 benchmarking runs that have been run so far on merge-commit ab0a40e.

Benchmarks with performance regressions

There were 0 possible performance regressions, according to the lookback z-score method.

All benchmark runs analyzed:

• Commit Run on test-mac-arm at 2024-09-06 14:57:39Z
• Commit Run on amd64-c6a-4xlarge-linux at 2024-09-06 14:40:29Z
• Commit Run on arm64-t4g-2xlarge-linux at 2024-09-06 15:00:32Z
• Commit Run on amd64-m5-4xlarge-linux at 2024-09-06 19:01:56Z

Unstable benchmarks with performance regressions

The following benchmark results indicate a possible performance regression, but are known to sometimes produce false positives when applying the lookback z-score analysis.

• Commit Run on test-mac-arm at 2024-09-06 14:57:39Z
  • ArrayScalarKernel (C++) with params=<SubtractChecked, UInt16Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<Add, Int64Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<Divide, Int64Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<AddChecked, UInt64Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<Subtract, Int64Type>/size:4194304/inverse_null_proportion:100, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<DivideChecked, UInt64Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<MultiplyChecked, UInt64Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<DivideChecked, UInt32Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<Divide, UInt32Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<AddChecked, UInt16Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<MultiplyChecked, Int64Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<Subtract, UInt64Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<Divide, Int32Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<Add, UInt64Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<AddChecked, Int64Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<Add, Int64Type>/size:4194304/inverse_null_proportion:100, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayScalarKernel (C++) with params=<Subtract, Int64Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark