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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/11/03 02:27:58 UTC

[GitHub] [arrow] cyb70289 edited a comment on pull request #11588: ARROW-14548: [C++] Add madvise random support for memory mapped file

cyb70289 edited a comment on pull request #11588:
URL: https://github.com/apache/arrow/pull/11588#issuecomment-958605062


   Thanks for the PR.
   I'm not sure if exposing madvise options is beneficial. If we expose `RANDOM`, then why not `SEQUENTIAL`?
   I prefer don't expose these access pattern related options, just let OS do the job.
   `WILLNEED` is a useful option IMO, I suppose OS won't invent a reading without hints.
   @pitrou 


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