After merging your PR, Conbench analyzed the 5 benchmarking runs that have been run so far on merge-commit 0c329cd.

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 2023-11-02 18:31:10Z
• Commit Run on arm64-t4g-linux-compute at 2023-11-02 19:18:45Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2023-11-02 18:37:07Z
• Commit Run on arm64-m6g-linux-compute at 2023-11-02 19:05:12Z
• Commit Run on ursa-thinkcentre-m75q at 2023-11-02 23:37:16Z

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 2023-11-02 23:37:16Z
  • BenchmarkBitmapVisitUInt8And (C++) with params=32768/1, source=cpp-micro, suite=arrow-bit-util-benchmark
  • BenchmarkBitmapVisitUInt8And (C++) with params=131072/2, source=cpp-micro, suite=arrow-bit-util-benchmark
  • getNullCountBenchmark (Java) with source=java-micro, suite=arrow.vector.BitVectorHelperBenchmarks
  • BenchmarkBitmapVisitUInt8And (C++) with params=131072/1, source=cpp-micro, suite=arrow-bit-util-benchmark