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https://issues.apache.org/jira/browse/ARROW-3694?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe L. Korn reassigned ARROW-3694:
----------------------------------
Assignee: Zhenyuan Zhao
> [Java] Avoid superfluous string creation when logging level is disabled
> ------------------------------------------------------------------------
>
> Key: ARROW-3694
> URL: https://issues.apache.org/jira/browse/ARROW-3694
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Java
> Affects Versions: 0.11.1
> Reporter: Zhenyuan Zhao
> Assignee: Zhenyuan Zhao
> Priority: Minor
> Labels: pull-request-available
> Fix For: 0.12.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> There are a few places where strings were unnecessarily created for logging
> purpose.
> [https://github.com/apache/arrow/blob/ed70f051bb0636d994f285c38503b992d08efa00/java/vector/src/main/java/org/apache/arrow/vector/ipc/message/ArrowRecordBatch.java#L75]
> For the above scenario in ArrowRecordBatch, roughly 2/3 of the total CPU was
> spent in string.format()
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