After merging your PR, Conbench analyzed the 4 benchmarking runs that have been run so far on merge-commit bbe59b3.

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 2024-02-13 08:00:27Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2024-02-13 07:30:44Z
• Commit Run on arm64-t4g-linux-compute at 2024-02-13 09:49:33Z
• Commit Run on ursa-thinkcentre-m75q at 2024-02-13 12:24:15Z

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 2024-02-13 12:24:15Z
  • copyFromBenchmark (Java) with source=java-micro, suite=arrow.vector.VarCharBenchmarks