conbench-apache-arrow[bot] commented on PR #45317:
URL: https://github.com/apache/arrow/pull/45317#issuecomment-2609677072

   After merging your PR, Conbench analyzed the 4 benchmarking runs that have 
been run so far on merge-commit dc581f09f8670ee44e15a801742d574ac93541d1.
   
   There were 14 benchmark results indicating a performance regression:
   
   - Commit Run on `test-mac-arm` at [2025-01-23 
07:05:40Z](https://conbench.ursa.dev/compare/runs/dea9fa3e473b4f429ce43f00d4a2d1b6...bd7d24dff1e14d70ab09baf506e912dd/)
     - [`tpch` (R) with engine=arrow, format=parquet, language=R, 
memory_map=False, query_id=TPCH-17, 
scale_factor=1](https://conbench.ursa.dev/compare/benchmarks/067913c4d45675958000648cddbbfe78...06791f43c44b70a38000f95ce3530724)
     - [`tpch` (R) with engine=arrow, format=native, language=R, 
memory_map=False, query_id=TPCH-10, 
scale_factor=1](https://conbench.ursa.dev/compare/benchmarks/067913b9f8967d898000eba7fabcc1e8...06791f380c5e721680004de8284211b4)
   - and 12 more (see the report linked below)
   
   The [full Conbench report](https://github.com/apache/arrow/runs/36057771609) 
has more details. It also includes information about 10 possible false 
positives for unstable benchmarks that are known to sometimes produce them.


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