After merging your PR, Conbench analyzed the 5 benchmarking runs that have been run so far on merge-commit 46c226e.

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 2023-11-19 02:55:43Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2023-11-19 02:54:02Z
• Commit Run on ursa-thinkcentre-m75q at 2023-11-19 04:57:54Z
• Commit Run on arm64-m6g-linux-compute at 2023-11-19 03:27:51Z
• Commit Run on arm64-t4g-linux-compute at 2023-11-19 04:31:10Z

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 2023-11-19 04:57:54Z
  • BM_ArrowBinaryPlain (C++) with params=DecodeArrow_Dense/65536, source=cpp-micro, suite=parquet-encoding-benchmark
  • BM_ArrowBinaryPlain (C++) with params=DecodeArrowNonNull_Dense/1024, source=cpp-micro, suite=parquet-encoding-benchmark
  • RoundArrayBenchmark (C++) with params=<Round, Int32Type, RoundMode::DOWN>/size:524288/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-round-benchmark
  • setWithWriter (Java) with source=java-micro, suite=arrow.vector.IntBenchmarks