After merging your PR, Conbench analyzed the 6 benchmarking runs that have been run so far on merge-commit 2a4e0db.

Benchmarks with performance regressions

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

All benchmark runs analyzed:

• Commit Run on ec2-m5-4xlarge-us-east-2 at 2023-10-25 06:12:44Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2023-10-25 05:44:58Z
• Commit Run on ursa-i9-9960x at 2023-10-25 05:52:06Z
• Commit Run on arm64-t4g-linux-compute at 2023-10-25 06:52:43Z
• Commit Run on arm64-m6g-linux-compute at 2023-10-25 18:07:41Z
• Commit Run on ursa-thinkcentre-m75q at 2023-10-26 11:38:07Z

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 2023-10-25 18:07:41Z

  • FromString (C++) with source=cpp-micro, suite=arrow-decimal-benchmark

• Commit Run on ursa-thinkcentre-m75q at 2023-10-26 11:38:07Z

  • BitmapReaderSum (C++) with params=4096, source=cpp-micro, suite=arrow-bit-block-counter-benchmark