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  1. Spark
  2. SPARK-28751

Imporve java serializer deserialization performance

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Won't Fix
    • Affects Version/s: 3.0.0
    • Fix Version/s: None
    • Component/s: Spark Core
    • Labels:
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      Description

      Improve the performance of java serializer deserialization by caching the resolved class. Java serializer is used in many places: closure, RPC and others. This change could improve the performance of deserialization 1.3X ~ 1.5X. Especially for java primitive instances.

      And also, add new UT tests and benchmarks case.

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              • Assignee:
                Unassigned
                Reporter:
                coneyliu Xianyang Liu
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                • Created:
                  Updated:
                  Resolved: