After merging your PR, Conbench analyzed the 4 benchmarking runs that have been run so far on merge-commit deee9ac.

Benchmarks with performance regressions

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

All benchmark runs analyzed:

• Commit Run on amd64-c6a-4xlarge-linux at 2024-10-11 02:11:15Z
• Commit Run on arm64-t4g-2xlarge-linux at 2024-10-11 02:28:36Z
• Commit Run on amd64-m5-4xlarge-linux at 2024-10-11 02:23:42Z
• Commit Run on test-mac-arm at 2024-10-11 04:32:14Z

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 amd64-c6a-4xlarge-linux at 2024-10-11 02:11:15Z

  • ConstructFromShortStdVector (C++) with params=<STATIC_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ShortVectorPushBack (C++) with params=<STATIC_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ConstructFromShortStdVector (C++) with params=<SMALL_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ShortVectorInsertAtEnd (C++) with params=<SMALL_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ShortVectorInsertAtEnd (C++) with params=<STATIC_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • AllocateTouchDeallocate (C++) with params=/size:1048576/real_time/threads:8, source=cpp-micro, suite=arrow-memory-pool-benchmark

• Commit Run on test-mac-arm at 2024-10-11 04:32:14Z

  • FilterFixedSizeBinaryFilterWithNulls (C++) with params=4194304/13/8, source=cpp-micro, suite=arrow-compute-vector-selection-benchmark
  • BenchmarkTemporal (C++) with params=<Minute, non_zoned>/4194304/100, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark
  • FilterFixedSizeBinaryFilterWithNulls (C++) with params=4194304/7/8, source=cpp-micro, suite=arrow-compute-vector-selection-benchmark
  • FilterFixedSizeBinaryFilterWithNulls (C++) with params=4194304/7/9, source=cpp-micro, suite=arrow-compute-vector-selection-benchmark