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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2016/09/07 09:04:20 UTC

[jira] [Resolved] (SPARK-17359) Use +=(A) instead of append(A) in performance critical paths

     [ https://issues.apache.org/jira/browse/SPARK-17359?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-17359.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 2.1.0

Issue resolved by pull request 14914
[https://github.com/apache/spark/pull/14914]

> Use +=(A) instead of append(A) in performance critical paths
> ------------------------------------------------------------
>
>                 Key: SPARK-17359
>                 URL: https://issues.apache.org/jira/browse/SPARK-17359
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib, SQL
>    Affects Versions: 2.0.0
>            Reporter: Liwei Lin
>            Priority: Minor
>             Fix For: 2.1.0
>
>
> We should generally use ArrayBuffer.+=(A) rather than ArrayBuffer.append(A), because append(A) would involve extra boxing / unboxing.



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