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  1. Parquet
  2. PARQUET-585

Slowly ramp up sizes of int[]s in IntList to keep sizes small when data sets are small

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.9.0, 1.8.2
    • Component/s: None
    • Labels:
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      Description

      One of the items that I listed in jira: https://issues.apache.org/jira/browse/PARQUET-580 was to ensure that we slowly ramp up the size of the int[] we create in IntList instead of 64K arrays directly. This ensures that we don't allocate large 64K arrays at the start(which is potentially wasteful if there are only a few hundred bytes).

      So rather than create arrays of size 64K at a time, we could create say a 4K int[], then when it fills up an 8K[] and so on till we reach 64K (at which point the behavior is the same as the current implementation).

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              • Assignee:
                pnarang Piyush Narang
                Reporter:
                pnarang Piyush Narang
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                • Created:
                  Updated:
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