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Posted to issues@orc.apache.org by GitBox <gi...@apache.org> on 2022/08/01 09:40:43 UTC

[GitHub] [orc] XinyuZeng commented on pull request #1158: ORC-961: [C++] expose related metrics of the reader

XinyuZeng commented on PR #1158:
URL: https://github.com/apache/orc/pull/1158#issuecomment-1200964837

   @dongjoon-hyun I created jira-issue 1232 for this problem. Also, even the metrics is disabled by setting nullptr, there is still some cost of initing the AutoStopWatch object and destructing it. The following perf flamegraph shows the cost.
   ![image](https://user-images.githubusercontent.com/30414224/182120492-94f85aa2-90b2-4995-b9f5-b1e452684d40.png)


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