[ https://issues.apache.org/jira/browse/FLINK-4422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15874757#comment-15874757 ]
Stephan Ewen commented on FLINK-4422: ------------------------------------- [~jinmingjian] I assigned the issue to you. I would suggest to open many small individual pull requests (like one per maven project). That way we can review/merge them easier. > Convert all time interval measurements to System.nanoTime() > ----------------------------------------------------------- > > Key: FLINK-4422 > URL: https://issues.apache.org/jira/browse/FLINK-4422 > Project: Flink > Issue Type: Sub-task > Components: Core > Reporter: Stephan Ewen > Assignee: Jin Mingjian > Priority: Minor > > In contrast to {{System.currentTimeMillis()}}, {{System.nanoTime()}} is > monotonous. To measure delays and time intervals, {{System.nanoTime()}} is > hence reliable, while {{System.currentTimeMillis()}} is not. -- This message was sent by Atlassian JIRA (v6.3.15#6346)