Dian Fu created FLINK-8227:
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Summary: Optimize the performance of SharedBufferSerializer
Key: FLINK-8227
URL: https://issues.apache.org/jira/browse/FLINK-8227
Project: Flink
Issue Type: Bug
Components: CEP
Reporter: Dian Fu
Assignee: Dian Fu
Currently {{SharedBufferSerializer.serialize()}} will create a HashMap and put
all the {{SharedBufferEntry}} into it. Usually this is not a problem. But we
obverse that in some cases the calculation of hashCode may become the
bottleneck. The performance will decrease as the number of {{SharedBufferEdge}}
increases. For looping pattern {{A*}}, if the number of {{SharedBufferEntry}}
is {{N}}, the number of {{SharedBufferEdge}} is about {{N * N}}.
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