After merging your PR, Conbench analyzed the 5 benchmarking runs that have been run so far on merge-commit 71329ce.

Benchmarks with performance regressions

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

All benchmark runs analyzed:

• Commit Run on arm64-t4g-linux-compute at 2023-08-07 21:18:39Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2023-08-07 20:14:41Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2023-08-07 20:34:52Z
• Commit Run on ursa-thinkcentre-m75q at 2023-08-07 21:11:05Z
• Commit Run on arm64-m6g-linux-compute at 2023-08-07 21:12:21Z

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-t4g-linux-compute at 2023-08-07 21:18:39Z

  • SelectKInt64 (C++) with params=65536/0/min_time:1.000, source=cpp-micro, suite=arrow-compute-vector-topk-benchmark

• Commit Run on arm64-m6g-linux-compute at 2023-08-07 21:12:21Z

  • MoveEmptyVector (C++) with params=<SMALL_VECTOR(std::string)>, source=cpp-micro, suite=arrow-small-vector-benchmark