alamb opened a new pull request, #7707:
URL: https://github.com/apache/arrow-rs/pull/7707

   # Which issue does this PR close?
   
   - Related to https://github.com/apache/arrow-rs/pull/7650
   
   # Rationale for this change
   
   I am exploring the hypothesis that the reuse of the input batches / 
allocations in the coalesce_kernel benchmark is skewing the results
   
   # What changes are included in this PR?
   
   Deep copy the batches passed to the benchmark to more accurately reflect 
real world use of data being produced in one source before being colesced
   
   # Are there any user-facing changes?
   No this is a benchmark only
   


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