Yingjie Cao created FLINK-19323:
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Summary: Small optimization of network layer record serialization
Key: FLINK-19323
URL: https://issues.apache.org/jira/browse/FLINK-19323
Project: Flink
Issue Type: Sub-task
Components: Runtime / Network
Reporter: Yingjie Cao
Fix For: 1.12.0
Currently, when serializing a record, the SpanningRecordSerializer will first
skip 4 bytes for length and serialize the record. Then it gets the serialized
record length and skip back to position 0 and write the length field. After
that, it skip again to the tail of the serialized data. In fact, the last two
skip can be avoid by writing length field to position 0 directly.
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