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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-19786) Facilitate loop optimizations in a JIT compiler regarding range()
Date Wed, 01 Mar 2017 14:32:45 GMT

     [ https://issues.apache.org/jira/browse/SPARK-19786?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Apache Spark reassigned SPARK-19786:
------------------------------------

    Assignee: Apache Spark

> Facilitate loop optimizations in a JIT compiler regarding range()
> -----------------------------------------------------------------
>
>                 Key: SPARK-19786
>                 URL: https://issues.apache.org/jira/browse/SPARK-19786
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: Kazuaki Ishizaki
>            Assignee: Apache Spark
>
> [This article|https://databricks.com/blog/2017/02/16/processing-trillion-rows-per-second-single-machine-can-nested-loop-joins-fast.html]
suggests that better generated code can improve performance by facilitating compiler optimizations.
> This JIRA changes the generated code for {{range()}} to facilitate loop optimizations
in a JIT compiler for achieving better performance.



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