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

Eric Liang created SPARK-14724:
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             Summary: 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
            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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