nevi-me commented on pull request #6898:
URL: https://github.com/apache/arrow/pull/6898#issuecomment-619797480


   > > I am using this code in various places, but if it is against the spec or 
not useful for the improvements we can drop it off.
   > 
   > As @pitrou says:
   > 
   > > It's a recommendation, not an obligation. If you decide that specific 
architectures deserve a specific alignment value, then IMHO it's not a problem.
   > 
   > I'm all for the changes if they improve performance but this is at the 
limit of my understanding. @andygrove @nevi-me thoughts?
   
   I don't know much about alignment, but I'm happy to claw back performance 
(esp after we remove packed_simd). I'll rebase this against the PR to drop 
packed_simd, then check the performance difference.


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