Dian Fu created FLINK-8227: ------------------------------ 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}}. -- This message was sent by Atlassian JIRA (v6.4.14#64029)