After merging your PR, Conbench analyzed the 3 benchmarking runs that have been run so far on merge-commit d7e982c.

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 2024-11-11 21:26:49Z
• Commit Run on arm64-t4g-2xlarge-linux at 2024-11-11 21:46:03Z
• Commit Run on amd64-m5-4xlarge-linux at 2024-11-11 21:41:44Z

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 2024-11-11 21:26:49Z
  • ArraySortIndicesInt64Narrow (C++) with params=8388608/100, source=cpp-micro, suite=arrow-compute-vector-sort-benchmark
  • ArrayRankInt64Narrow (C++) with params=32768/10/tiebreaker:0, source=cpp-micro, suite=arrow-compute-vector-sort-benchmark
  • AllocateTouchDeallocate (C++) with params=/size:1048576/real_time/threads:8, source=cpp-micro, suite=arrow-memory-pool-benchmark
  • ArraySortIndicesInt64Narrow (C++) with params=1048576/100, source=cpp-micro, suite=arrow-compute-vector-sort-benchmark