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Posted to reviews@spark.apache.org by dbtsai <gi...@git.apache.org> on 2014/07/01 19:08:50 UTC

[GitHub] spark pull request: [WIP][SPARK-2174][MLLIB] treeReduce and treeAg...

Github user dbtsai commented on the pull request:

    https://github.com/apache/spark/pull/1110#issuecomment-47683286
  
    We benchmarked treeReduce in our random forest implementation, and since the trees generated from each partition are fairly large (more than 100MB), we found that treeReduce can significantly reduce the shuffle time from 6mins to 2mins. Nice work! 


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