After merging your PR, Conbench analyzed the 6 benchmarking runs that have been run so far on merge-commit 6d551aa.

Benchmarks with performance regressions

There was 1 possible performance regression, according to the lookback z-score method.

Benchmarks with regressions:

• Commit Run on ursa-i9-9960x at 2023-10-06 10:54:54Z
  • dataframe-to-table (Python) with dataset=type_floats

All benchmark runs analyzed:

• Commit Run on arm64-t4g-linux-compute at 2023-10-06 03:56:08Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2023-10-06 03:20:25Z
• Commit Run on ursa-i9-9960x at 2023-10-06 10:54:54Z
• Commit Run on arm64-m6g-linux-compute at 2023-10-06 12:24:03Z
• Commit Run on ursa-thinkcentre-m75q at 2023-10-06 22:14:56Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2023-10-05 23:02:31Z

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 2023-10-06 22:14:56Z
  • ArrayArrayKernel (C++) with params=<Add, UInt32Type>/size:524288/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark
  • ArrayArrayKernel (C++) with params=<Add, UInt32Type>/size:524288/inverse_null_proportion:100, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark