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Posted to issues@spark.apache.org by "Eric Liang (JIRA)" <ji...@apache.org> on 2016/04/19 05:29:25 UTC

[jira] [Updated] (SPARK-14724) Improve performance of sorting by using radix sort when possible

     [ https://issues.apache.org/jira/browse/SPARK-14724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Liang updated SPARK-14724:
-------------------------------
    Component/s: Spark Core

> Improve performance of sorting by using radix sort when possible
> ----------------------------------------------------------------
>
>                 Key: SPARK-14724
>                 URL: https://issues.apache.org/jira/browse/SPARK-14724
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>            Reporter: Eric Liang
>
> Spark currently uses TimSort for all in-memory sorts, including sorts done for shuffle. One low-hanging fruit is to use radix sort when possible (e.g. sorting by integer keys).



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