alamb commented on PR #6808:
URL: https://github.com/apache/arrow-rs/pull/6808#issuecomment-2599289085

   > I believe the penalty introduced by this PR would be mitigated for 
interleave's case if we also merge 
https://github.com/apache/arrow-rs/pull/6779, for other cases it feels like the 
read / transfer over the wire improvements might outweigh the cost. Happy to 
hear your thoughts
   
   I have merged https://github.com/apache/arrow-rs/pull/6779 now
   
   I think one of the potential performance concerns is that 
`MutableBuffer::extend` is used not just for `interleave` but many other 
operations too (such as `filter` I think) where the improvements in 
https://github.com/apache/arrow-rs/pull/6779 will not help I don't think


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