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Posted to issues@spark.apache.org by "Iurii Antykhovych (JIRA)" <ji...@apache.org> on 2017/07/20 20:57:00 UTC

[jira] [Created] (SPARK-21491) Performance enhancement: eliminate creation of intermediate collections

Iurii Antykhovych created SPARK-21491:
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             Summary: Performance enhancement: eliminate creation of intermediate collections
                 Key: SPARK-21491
                 URL: https://issues.apache.org/jira/browse/SPARK-21491
             Project: Spark
          Issue Type: Improvement
          Components: GraphX
    Affects Versions: 2.2.0
            Reporter: Iurii Antykhovych
            Priority: Minor


Simple performance optimization in a few places of GraphX:
{{Traversable.toMap}} can be replaced with {{collection.breakout}}.
This would eliminate creation of an intermediate collection of tuples, see
[Stack Overflow article|https://stackoverflow.com/questions/1715681/scala-2-8-breakout]



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