After merging your PR, Conbench analyzed the 4 benchmarking runs that have been run so far on merge-commit 32d785f.

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 2024-01-10 09:04:01Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2024-01-10 11:03:50Z
• Commit Run on ursa-i9-9960x at 2024-01-10 09:06:00Z
• Commit Run on ursa-thinkcentre-m75q at 2024-01-11 05:55:33Z

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 2024-01-11 05:55:33Z
  • getNullCountBenchmark (Java) with source=java-micro, suite=arrow.vector.BitVectorHelperBenchmarks