conbench-apache-arrow[bot] commented on PR #43871:
URL: https://github.com/apache/arrow/pull/43871#issuecomment-2317340394

   Thanks for your patience. Conbench analyzed the 4 benchmarking runs that 
have been run so far on PR commit d156d2d5ebd6abb41e5cf7f587b8f5ba4aa4a8a0.
   
   There were 10 benchmark results indicating a performance regression:
   
   - Pull Request Run on `arm64-t4g-2xlarge-linux` at [2024-08-29 
04:28:44Z](https://conbench.ursa.dev/compare/runs/697e6e15eeef49bcb6c806f597e0d62c...05f573e4fafd48feae649ec6a45fe5f6/)
     - [`ConstructFromShortStdVector` (C++) with params=<STATIC_VECTOR(int)>, 
source=cpp-micro, 
suite=arrow-small-vector-benchmark](https://conbench.ursa.dev/compare/benchmarks/066a543bda6972ca8000e7919f76ba36...066cff9f403577418000832e17834163)
   
   - Pull Request Run on `amd64-c6a-4xlarge-linux` at [2024-08-29 
04:09:37Z](https://conbench.ursa.dev/compare/runs/22d7cb280fd84c70a5d3b4a0055c19c8...759f0b41c1a24eb8ba67ce2cf042334d/)
     - [`IntegerFormatting` (C++) with params=<UInt8Type>, source=cpp-micro, 
suite=arrow-value-parsing-benchmark](https://conbench.ursa.dev/compare/benchmarks/066a53d63f517d778000c6cf235c646d...066cff5a222b7b6680007d238fe44c69)
   - and 8 more (see the report linked below)
   
   The [full Conbench report](https://github.com/apache/arrow/runs/29418559273) 
has more details.


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