[jira] [Created] (FLINK-8172) Remove unnecessary synchronisation in RecordSerializer

[Shang Yuanchun (Jira)]

Piotr Nowojski created FLINK-8172:
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             Summary: Remove unnecessary synchronisation in RecordSerializer
                 Key: FLINK-8172
                 URL: https://issues.apache.org/jira/browse/FLINK-8172
             Project: Flink
          Issue Type: Improvement
          Components: Network
    Affects Versions: 1.3.2, 1.4.0
            Reporter: Piotr Nowojski
            Assignee: Piotr Nowojski
             Fix For: 1.5.0


While writing the records, RecordSerializer is the only owner of the `Buffer` into which data are written. Yet we are synchronisation twice per record while accessing MemorySegment. Removing this synchronisation speeds up the Network throughput in point to point benchmark by a factor of two (from ~12500records/ms up to 23000 records/ms).



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