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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/05/16 13:53:52 UTC

[GitHub] [arrow] jackylee-ch commented on pull request #13161: ARROW-16568: [Java] Enable skip BOUNDS_CHECKING with setBytes and getBytes of ArrowBuf

jackylee-ch commented on PR #13161:
URL: https://github.com/apache/arrow/pull/13161#issuecomment-1127705653

   <img width="1418" alt="image" src="https://user-images.githubusercontent.com/10897625/168606455-d63f82c5-3e41-4f03-ac76-2a737f2ec73f.png">
   This is the perf image for this problem, we set about billiions of String values into StringVector. As showing in image, we have 14% cpu time cost with checkIndex, which is actually unneccesary and no reallocat found. With this pr, we have 14% speed up in our environment.
   BTW, We have chagned setSafe to set to remove the handleSafe costs.


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