After merging your PR, Conbench analyzed the 6 benchmarking runs that have been run so far on merge-commit 3c66491.

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 2023-12-21 01:09:49Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2023-12-21 01:13:12Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2023-12-21 01:24:12Z
• Commit Run on arm64-t4g-linux-compute at 2023-12-21 02:02:48Z
• Commit Run on arm64-m6g-linux-compute at 2023-12-21 01:58:50Z
• Commit Run on ursa-thinkcentre-m75q at 2023-12-21 14:20:58Z

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 arm64-m6g-linux-compute at 2023-12-21 01:58:50Z
  • NthToIndicesInt64 (C++) with params=65536/10, source=cpp-micro, suite=arrow-compute-vector-partition-benchmark
  • NthToIndicesInt64 (C++) with params=1048576/100, source=cpp-micro, suite=arrow-compute-vector-partition-benchmark
  • NthToIndicesInt64 (C++) with params=65536/100, source=cpp-micro, suite=arrow-compute-vector-partition-benchmark
  • NthToIndicesInt64 (C++) with params=65536/10000, source=cpp-micro, suite=arrow-compute-vector-partition-benchmark