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  1. Hive
  2. HIVE-7219

Improve performance of serialization utils in ORC

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.14.0
    • Fix Version/s: 0.14.0
    • Component/s: File Formats
    • Labels:
      None

      Description

      ORC uses serialization utils heavily for reading and writing data. The bitpacking and unpacking code in writeInts() and readInts() can be unrolled for better performance. Also double reader/writer performance can be improved by bulk reading/writing from/to byte array.

        Attachments

        1. HIVE-7219.4.patch
          161 kB
          Prasanth Jayachandran
        2. HIVE-7219.3.patch
          100 kB
          Prasanth Jayachandran
        3. HIVE-7219.2.patch
          100 kB
          Prasanth Jayachandran
        4. orc-read-perf-jmh-benchmark.png
          403 kB
          Prasanth Jayachandran
        5. HIVE-7219.1.patch
          79 kB
          Prasanth Jayachandran

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              • Assignee:
                prasanth_j Prasanth Jayachandran
                Reporter:
                prasanth_j Prasanth Jayachandran
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                Dates

                • Created:
                  Updated:
                  Resolved: