After merging your PR, Conbench analyzed the 5 benchmarking runs that have been run so far on merge-commit a394a39.

Benchmarks with performance regressions

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

All benchmark runs analyzed:

• Commit Run on arm64-m6g-linux-compute at 2023-11-18 03:37:02Z
• Commit Run on ursa-thinkcentre-m75q at 2023-11-18 05:15:38Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2023-11-18 03:24:44Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2023-11-18 03:05:55Z
• Commit Run on arm64-t4g-linux-compute at 2023-11-18 03:42:23Z

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 arm64-m6g-linux-compute at 2023-11-18 03:37:02Z

  • HexParsing (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark
  • IntegerParsing (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark
  • HexParsing (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark
  • HexParsing (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark
  • HexParsing (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark
  • HexParsing (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark
  • HexParsing (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark
  • HexParsing (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark
  • IntegerParsing (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark
  • IntegerParsing (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark

• Commit Run on ursa-thinkcentre-m75q at 2023-11-18 05:15:38Z

  • ArrayArrayKernel (C++) with params=<AddChecked, Int64Type>/size:524288/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayArrayKernel (C++) with params=<AddChecked, UInt64Type>/size:524288/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • BM_ArrowBinaryPlain (C++) with params=DecodeArrow_Dense/32768, source=cpp-micro, suite=parquet-encoding-benchmark
  • CopyEmptyVector (C++) with params=<SMALL_VECTOR(std::string)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ArrayArrayKernel (C++) with params=<SubtractChecked, UInt64Type>/size:524288/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayArrayKernel (C++) with params=<SubtractChecked, Int64Type>/size:524288/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayArrayKernel (C++) with params=<MultiplyChecked, UInt64Type>/size:524288/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayArrayKernel (C++) with params=<MultiplyChecked, Int64Type>/size:524288/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark