After merging your PR, Conbench analyzed the 5 benchmarking runs that have been run so far on merge-commit 0f56339.

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-t3-xlarge-us-east-2 at 2024-04-26 18:29:41Z
• Commit Run on test-mac-arm at 2024-04-26 16:48:37Z
• Commit Run on ec2-m5-4xlarge-us-east-2 at 2024-04-26 16:49:40Z
• Commit Run on arm64-t4g-linux-compute at 2024-04-26 18:25:22Z
• Commit Run on arm64-m6g-linux-compute at 2024-04-26 15:55:26Z

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 2024-04-26 18:25:22Z
  • MoveShortVector (C++) with params=<STATIC_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • CopyShortVector (C++) with params=<SMALL_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ShortVectorPushBack (C++) with params=<SMALL_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ConstructFromEmptyStdVector (C++) with params=<STD_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • CopyEmptyVector (C++) with params=<SMALL_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • CopyShortVector (C++) with params=<STATIC_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • MoveShortVector (C++) with params=<SMALL_VECTOR(std::string)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • MoveShortVector (C++) with params=<STD_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • MoveShortVector (C++) with params=<STD_VECTOR(std::string)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • MoveEmptyVector (C++) with params=<STATIC_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ExecuteScalarExpressionOverhead (C++) with params=ref_only_expression/rows_per_batch:1000/real_time/threads:1, source=cpp-micro, suite=arrow-acero-expression-benchmark
  • MoveEmptyVector (C++) with params=<STD_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ShortVectorInsert (C++) with params=<SMALL_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • CopyShortVector (C++) with params=<SMALL_VECTOR(std::string)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ExecuteScalarExpressionOverhead (C++) with params=ref_only_expression/rows_per_batch:1000/real_time/threads:8, source=cpp-micro, suite=arrow-acero-expression-benchmark
  • ConstructFromEmptyStdVector (C++) with params=<STD_VECTOR(std::string)>, 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
  • ShortVectorPushBack (C++) with params=<STATIC_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ConstructFromEmptyStdVector (C++) with params=<SMALL_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ShortVectorInsertAtEnd (C++) with params=<SMALL_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • MoveShortVector (C++) with params=<SMALL_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
  • CopyEmptyVector (C++) with params=<STATIC_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • MoveEmptyVector (C++) with params=<SMALL_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ConstructFromEmptyStdVector (C++) with params=<SMALL_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • CopyEmptyVector (C++) with params=<STD_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • BenchmarkTemporal (C++) with params=<IsLeapYear, non_zoned>/1048576/0, source=cpp-micro, suite=arrow-compute-scalar-temporal-benchmark
  • CopyEmptyVector (C++) with params=<STD_VECTOR(std::shared_ptr)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • ConstructFromShortStdVector (C++) with params=<SMALL_VECTOR(int)>, source=cpp-micro, suite=arrow-small-vector-benchmark
  • InlinedTrieLookupFound (C++) with source=cpp-micro, suite=arrow-trie-benchmark