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  1. Spark
  2. SPARK-26780

Improve shuffle read using ReadAheadInputStream

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    Details

    • Type: Improvement
    • Status: In Progress
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 3.0.0
    • Fix Version/s: None
    • Component/s: Shuffle
    • Labels:
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      Description

      Using ReadAheadInputStream  to improve  shuffle read  performance.
       ReadAheadInputStream can save cpu utilization and almost no performance regression

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              • Assignee:
                Unassigned
                Reporter:
                10110346 liuxian
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                • Created:
                  Updated: