You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@arrow.apache.org by "Yibo Cai (Jira)" <ji...@apache.org> on 2020/04/21 02:56:00 UTC

[jira] [Created] (ARROW-8537) [C++] Performance regression from ARROW-8523

Yibo Cai created ARROW-8537:
-------------------------------

             Summary: [C++] Performance regression from ARROW-8523
                 Key: ARROW-8537
                 URL: https://issues.apache.org/jira/browse/ARROW-8537
             Project: Apache Arrow
          Issue Type: Bug
            Reporter: Yibo Cai


I optimized BitmapReader in [this PR|https://github.com/apache/arrow/pull/6986] 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|https://github.com/apache/arrow/pull/6986#issuecomment-616915079].
I also compared performance of code using BitmapReader, no obvious changes found. Looks we should revert that PR.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)