[jira] [Closed] (SPARK-9399) Assorted micro-optimizations in PythonRDD

["Josh Rosen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-9399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Josh Rosen closed SPARK-9399.
-----------------------------
    Resolution: Won't Fix

> Assorted micro-optimizations in PythonRDD
> -----------------------------------------
>
>                 Key: SPARK-9399
>                 URL: https://issues.apache.org/jira/browse/SPARK-9399
>             Project: Spark
>          Issue Type: Improvement
>          Components: PySpark
>            Reporter: Josh Rosen
>            Assignee: Josh Rosen
>            Priority: Minor
>
> There are a few minor optimizations in PythonRDD which may avoid garbage creation or Scala overheads:
> - Replace a foreach() loop with a while() loop.
> - Returns nulls instead of Options to avoid calling `Option.apply()` and `Option.isDefined` once per read() call.
> - Call .size() instead of .length(), thereby avoiding an implicit Java -> Scala collections conversion.



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