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From NicoK <...@git.apache.org>
Subject [GitHub] flink issue #4445: [FLINK-7310][core] always use the HybridMemorySegment
Date Fri, 04 Aug 2017 12:49:14 GMT
Github user NicoK commented on the issue:

    https://github.com/apache/flink/pull/4445
  
    in a non-exhaustive mini benchmark, I ran `HashVsSortMiniBenchmark` and got the following
results:
    
    # Best out of 5 (in ms)
    
    Test | `master` | `Flink-7310`
    ---- | ------ | ----------
    Hash Build First | 5541 | 5629
    Sort-Merge | 6194 | 6816
    Hash Build | 3587 | 3629
    
    # All results
    
    ## `master`
    
    Test | 1 | 2 | 3 | 4 | 5
    ---- | - | - | - | - | -
    Hash Build First | 5772.0 | 5541.0 | 5707.0 | 5733.0 | 5751.0
    Sort-Merge | 6704.0 | 7146.0 | 6194.0 | 6915.0 | 6445.0
    Hash Build Second | 3834.0 | 3805.0 | 3811.0 | 3587.0 | 3563.0
    
    ## `FLINK-7310`
    
    Test | 1 | 2 | 3 | 4 | 5
    ---- | - | - | - | - | -
    Hash Build First | 5816.0 | 5770.0 | 5629.0 | 5656.0 | 5745.0
    Sort-Merge | 7284.0 | 7233.0 | 6816.0 | 6861.0 | 7218.0
    Hash Build Second | 3802.0 | 3836.0 | 3629.0 | 3782.0 | 3804.0


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