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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2017/07/20 21:13:01 UTC
[jira] [Commented] (SPARK-21491) Performance enhancement: eliminate
creation of intermediate collections
[ https://issues.apache.org/jira/browse/SPARK-21491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16095378#comment-16095378 ]
Apache Spark commented on SPARK-21491:
--------------------------------------
User 'SereneAnt' has created a pull request for this issue:
https://github.com/apache/spark/pull/18693
> 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: Trivial
>
> 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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