After merging your PR, Conbench analyzed the 4 benchmarking runs that have been run so far on merge-commit 6269317.

Benchmarks with performance regressions

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

All benchmark runs analyzed:

• Commit Run on ec2-m5-4xlarge-us-east-2 at 2024-04-11 15:28:24Z
• Commit Run on ec2-t3-xlarge-us-east-2 at 2024-04-11 16:16:57Z
• Commit Run on arm64-t4g-linux-compute at 2024-04-11 17:38:30Z
• Commit Run on arm64-m6g-linux-compute at 2024-04-11 16:37:48Z

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 2024-04-11 17:38:30Z
  • InlinedTrieLookupNotFound (C++) with source=cpp-micro, suite=arrow-trie-benchmark
  • ConstructFromEmptyStdVector (C++) with params=<STD_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ReferenceWorkloadCost (C++) with params=task_cost:10000/real_time, source=cpp-micro, suite=arrow-thread-pool-benchmark
  • MoveShortVector (C++) with params=<STD_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • CopyShortVector (C++) with params=<SMALL_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • CopyEmptyVector (C++) with params=<STD_VECTOR(std::string)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ConstructFromShortStdVector (C++) with params=<STATIC_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ConstructFromEmptyStdVector (C++) with params=<STATIC_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • MoveShortVector (C++) with params=<STATIC_VECTOR(std::string)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ConstructFromEmptyStdVector (C++) with params=<STD_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • CopyEmptyVector (C++) with params=<STD_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ReferenceWorkloadCost (C++) with params=task_cost:1000/real_time, source=cpp-micro, suite=arrow-thread-pool-benchmark
  • ReferenceWorkloadCost (C++) with params=task_cost:100000/real_time, source=cpp-micro, suite=arrow-thread-pool-benchmark
  • InlinedTrieLookupFound (C++) with source=cpp-micro, suite=arrow-trie-benchmark
  • MoveEmptyVector (C++) with params=<STATIC_VECTOR(std::string)>, source=cpp-micro, suite=arrow-small-vector-benchmark