After merging your PR, Conbench analyzed the 7 benchmarking runs that have been run so far on merge-commit 80258fe.

Benchmarks with performance regressions

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

All benchmark runs analyzed:

• Commit Run on ursa-i9-9960x at 2024-04-16 05:15:20Z
• Commit Run on test-mac-arm at 2024-04-15 21:18:19Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2024-04-15 16:31:01Z
• Commit Run on ursa-thinkcentre-m75q at 2024-04-15 19:02:29Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2024-04-15 18:47:07Z
• Commit Run on arm64-t4g-linux-compute at 2024-04-15 20:35:00Z
• Commit Run on arm64-m6g-linux-compute at 2024-04-15 22:54:29Z

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 2024-04-15 21:18:19Z

  • BenchmarkTemporal (C++) with params=<Microsecond, non_zoned>/4194304/0, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark

• Commit Run on ursa-thinkcentre-m75q at 2024-04-15 19:02:29Z

  • CheckIndexBoundsInt32 (C++) with params=524288/0, source=cpp-micro, suite=arrow-int-util-benchmark
  • ShortVectorPushBack (C++) with params=<STATIC_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ConstructFromEmptyStdVector (C++) with params=<SMALL_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark

• Commit Run on arm64-t4g-linux-compute at 2024-04-15 20:35:00Z

  • ColumnReaderSkipInt32 (C++) with params=Repetition:2/BatchSize:1000, source=cpp-micro, suite=parquet-column-reader-benchmark

• Commit Run on arm64-m6g-linux-compute at 2024-04-15 22:54:29Z

  • IntegerFormatting (C++) with params=, source=cpp-micro, suite=arrow-value-parsing-benchmark