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Posted to issues@flink.apache.org by NicoK <gi...@git.apache.org> on 2018/07/10 21:58:30 UTC

[GitHub] flink issue #6115: [FLINK-9435][java] Remove per-key selection Tuple instant...

Github user NicoK commented on the issue:

    https://github.com/apache/flink/pull/6115
  
    alright - tried that change which also has the advantage of not using up memory for the `templateKey` - these are the results from the same Benchmark (same hardware, new software though, so I also re-did the old benchmark and ran them twice):
    ```
    old:
    
    Benchmark                    Mode  Cnt     Score    Error   Units
    KeyByBenchmarks.arrayKeyBy  thrpt   30  1151.305 ± 21.096  ops/ms
    KeyByBenchmarks.arrayKeyBy  thrpt   30  1117.486 ± 43.508  ops/ms
    KeyByBenchmarks.tupleKeyBy  thrpt   30  1659.634 ± 28.627  ops/ms
    KeyByBenchmarks.tupleKeyBy  thrpt   30  1554.265 ± 82.604  ops/ms
    
    new:
    
    KeyByBenchmarks.arrayKeyBy  thrpt   30  1150.552 ± 51.185  ops/ms
    KeyByBenchmarks.arrayKeyBy  thrpt   30  1195.777 ± 10.621  ops/ms
    KeyByBenchmarks.tupleKeyBy  thrpt   30  1743.633 ± 27.109  ops/ms
    KeyByBenchmarks.tupleKeyBy  thrpt   30  1697.885 ± 22.101  ops/ms
    ```


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