[ https://issues.apache.org/jira/browse/FLINK-2653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Stephan Ewen closed FLINK-2653. ------------------------------- > Enable object reuse in MergeIterator > ------------------------------------ > > Key: FLINK-2653 > URL: https://issues.apache.org/jira/browse/FLINK-2653 > Project: Flink > Issue Type: Improvement > Components: Distributed Runtime > Affects Versions: master > Reporter: Greg Hogan > Assignee: Greg Hogan > Fix For: 0.10 > > > MergeIterator currently discards given reusable objects and simply returns a > new object from the JVM heap. This inefficiency has a noticeable impact on > garbage collection and runtime overhead (~5% overall performance by my > measure). -- This message was sent by Atlassian JIRA (v6.3.4#6332)