After merging your PR, Conbench analyzed the 6 benchmarking runs that have been run so far on merge-commit 7b7bbdc.

Benchmarks with performance regressions

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

All benchmark runs analyzed:

• Commit Run on ursa-i9-9960x at 2023-10-13 14:35:16Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2023-10-13 00:24:08Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2023-10-13 00:24:19Z
• Commit Run on arm64-t4g-linux-compute at 2023-10-13 01:22:08Z
• Commit Run on arm64-m6g-linux-compute at 2023-10-14 18:48:07Z
• Commit Run on ursa-thinkcentre-m75q at 2023-10-17 01:41:28Z

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 ursa-thinkcentre-m75q at 2023-10-17 01:41:28Z
  • ArrayArrayKernel (C++) with params=<SubtractChecked, Int64Type>/size:524288/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • BM_ByteStreamSplitEncode_Float_Sse2 (C++) with params=32768, source=cpp-micro, suite=parquet-encoding-benchmark
  • ArrayArrayKernel (C++) with params=<MultiplyChecked, 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
  • 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=<SubtractChecked, UInt64Type>/size:524288/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark