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https://issues.apache.org/jira/browse/SPARK-42685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17697036#comment-17697036
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Apache Spark commented on SPARK-42685:
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User 'alkis' has created a pull request for this issue:
https://github.com/apache/spark/pull/40301
> optimize byteToString routines
> ------------------------------
>
> Key: SPARK-42685
> URL: https://issues.apache.org/jira/browse/SPARK-42685
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 3.3.2
> Reporter: Alkis Evlogimenos
> Priority: Major
>
> {{Utils.byteToString routines are slow because they use BigInt and
> BigDecimal. This is causing visible CPU usage (1-2% in scan benchmarks).}}
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