After merging your PR, Conbench analyzed the 7 benchmarking runs that have been run so far on merge-commit c5f60a0.

Benchmarks with performance regressions

There were 0 possible performance regressions, according to the lookback z-score method.

All benchmark runs analyzed:

• Commit Run on test-mac-arm at 2024-02-28 01:16:09Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2024-02-27 19:54:00Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2024-02-27 20:10:27Z
• Commit Run on arm64-t4g-linux-compute at 2024-02-27 21:04:41Z
• Commit Run on ursa-i9-9960x at 2024-02-27 23:04:24Z
• Commit Run on ursa-thinkcentre-m75q at 2024-02-28 08:26:12Z
• Commit Run on arm64-m6g-linux-compute at 2024-02-28 11:21:20Z

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 test-mac-arm at 2024-02-28 01:16:09Z

  • ArrayScalarKernel (C++) with params=<Divide, Int8Type>/size:4194304/inverse_null_proportion:0, source=cpp-micro, suite=arrow-compute-scalar-arithmetic-benchmark

• Commit Run on ursa-thinkcentre-m75q at 2024-02-28 08:26:12Z

  • ValidateSmallAscii (C++) with source=cpp-micro, suite=arrow-utf8-util-benchmark
  • BM_BatchComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • BuildStringDictionaryArray (C++) with source=cpp-micro, suite=arrow-builder-benchmark
  • BM_ArrowBinaryPlain (C++) with params=DecodeArrow_Dense/1024, source=cpp-micro, suite=parquet-encoding-benchmark
  • BM_ComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • BM_ArrowBinaryDict (C++) with params=EncodeDictDirectInt8/1048576, source=cpp-micro, suite=parquet-encoding-benchmark
  • BM_ArrowBinaryDict (C++) with params=EncodeDictDirectInt64/1048576, source=cpp-micro, suite=parquet-encoding-benchmark
  • BM_ArrowBinaryDict (C++) with params=EncodeDictDirectInt32/1048576, source=cpp-micro, suite=parquet-encoding-benchmark
  • BM_ComputeHash (C++) with params=, source=cpp-micro, suite=parquet-bloom-filter-benchmark
  • copyFromBenchmark (Java) with source=java-micro, suite=arrow.vector.VarCharBenchmarks
  • BM_ArrowBinaryDict (C++) with params=EncodeDictDirectInt16/1048576, source=cpp-micro, suite=parquet-encoding-benchmark