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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/01/26 18:25:54 UTC

[GitHub] [arrow] jorgecarleitao commented on pull request #9329: [Rust] [Experiment] Replace `Arc` by `ArrayData` in all arrays

jorgecarleitao commented on pull request #9329:
URL: https://github.com/apache/arrow/pull/9329#issuecomment-767737664


   > I wouldn't have expected > 20% changes for bigger arrays (512/1024 elements) in the kernels only based on removing / not creating or cloning the Arc. Any idea why that could be the case?
   
   I remember that we had a similar issue some time ago where we were using `data` instead of `data_ref`, and that was causing a significant performance difference.
   
   My general approach here is to write simpler code in the hope that it helps the compiler.
   
   In practice, I humbly make these offerings to the gods of LLVM and pray for a sign.


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