GitHub user maropu opened a pull request:
https://github.com/apache/spark/pull/3507
[SPARK-4646] Replace Scala.util.Sorting.quickSort with Sorter(TimSort) in
Spark
This patch just replaces a native quick sorter with Sorter(TimSort) in
Spark.
It could get performance gains by ~8% in my quick experiments.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/maropu/spark
TimSortInEdgePartitionBuilderSpike
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/3507.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3507
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commit 3527e00be4ed232e805d27e238b9a23a754068c6
Author: Takeshi Yamamuro <[email protected]>
Date: 2014-11-26T11:43:16Z
Replace Scala.util.Sorting.quickSort with Sorter(TimSort) in Spark
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