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  1. Apache Arrow
  2. ARROW-8537

[C++] Performance regression from ARROW-8523

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 1.0.0
    • C++

    Description

      I optimized BitmapReader in this PR and see performance uplift of BitmapReader test case. I didn't check other test cases as this change looks trivial.
      I reviewed all test cases just now and see big performance drop of 4 cases, details at PR link.
      I also compared performance of code using BitmapReader, no obvious changes found. Looks we should revert that PR.

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            yibocai Yibo Cai
            yibocai Yibo Cai
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              Created:
              Updated:
              Resolved: