After merging your PR, Conbench analyzed the 6 benchmarking runs that have been run so far on merge-commit 7dd8624.

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-t3-xlarge-us-east-2 at 2023-09-05 07:05:42Z
• Commit Run on ursa-i9-9960x at 2023-09-05 04:22:25Z
• Commit Run on arm64-t4g-linux-compute at 2023-09-05 09:25:34Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2023-09-05 08:58:50Z
• Commit Run on arm64-m6g-linux-compute at 2023-09-05 13:51:14Z
• Commit Run on ursa-thinkcentre-m75q at 2023-09-06 11:17:00Z

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 2023-09-06 11:17:00Z
  • ShortVectorPushBack (C++) with params=<SMALL_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • CopyEmptyVector (C++) with params=<SMALL_VECTOR(std::string)>, source=cpp-micro, suite=arrow-small-vector-benchmark