conbench-apache-arrow[bot] commented on PR #47014:
URL: https://github.com/apache/arrow/pull/47014#issuecomment-3047039767

   After merging your PR, Conbench analyzed the 4 benchmarking runs that have 
been run so far on merge-commit c4e201329e7ba78f8ca4a4d63e8c26ebc061b12e.
   
   There were 3 benchmark results indicating a performance regression:
   
   - Commit Run on `test-mac-arm` at [2025-07-07 
21:09:46Z](https://conbench.ursa.dev/compare/runs/a8218fb9e2024d43b9acdbf756c76624...6a94feddbe47474994c220dbf5a72809/)
     - [`tpch` (R) with engine=arrow, format=parquet, language=R, 
memory_map=False, query_id=TPCH-11, 
scale_factor=1](https://conbench.ursa.dev/compare/benchmarks/0686c0014c5c7cc180000659b465f88a...0686c43927d276cc8000788e1bb3ac7e)
     - [`tpch` (R) with engine=arrow, format=parquet, language=R, 
memory_map=False, query_id=TPCH-16, 
scale_factor=1](https://conbench.ursa.dev/compare/benchmarks/0686c00a26eb7a3480003daee3486e0e...0686c44281cd7fc48000d171d48c2148)
   - and 1 more (see the report linked below)
   
   The [full Conbench report](https://github.com/apache/arrow/runs/45519925547) 
has more details. It also includes information about 29 possible false 
positives for unstable benchmarks that are known to sometimes produce them.


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