ConeyLiu commented on issue #25470: [SPARK-28751][Core][WIP] Improve java serializer deserialization performance URL: https://github.com/apache/spark/pull/25470#issuecomment-543579149 Yeah, it can provide great performance improvement from end to end. The single record serialize/deserialize is most happens in RPC, and the overhead of RPC is much lower than other components.
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