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Posted to issues@flink.apache.org by StephanEwen <gi...@git.apache.org> on 2017/08/01 13:13:03 UTC

[GitHub] flink issue #4445: [FLINK-7310][core] always use the HybridMemorySegment

Github user StephanEwen commented on the issue:

    https://github.com/apache/flink/pull/4445
  
    These changes look good to me!
    
    There is in fact a potential performance impact of this change. It would be cool to get an understanding of the potential performance impact of only using the HybridMemorySegment now.
    We could run something like a Hash Join Performance test with key/value pairs of String keys (which are the most performance sensitive to serialize / deserialize with individual byte operations) and see if this has a measurable impact there.


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