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Posted to commits@cassandra.apache.org by "sankalp kohli (JIRA)" <ji...@apache.org> on 2015/05/28 03:15:17 UTC

[jira] [Assigned] (CASSANDRA-9496) ArrivalWindow should use primitives

     [ https://issues.apache.org/jira/browse/CASSANDRA-9496?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

sankalp kohli reassigned CASSANDRA-9496:
----------------------------------------

    Assignee: sankalp kohli

> ArrivalWindow should use primitives 
> ------------------------------------
>
>                 Key: CASSANDRA-9496
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9496
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: sankalp kohli
>            Assignee: sankalp kohli
>            Priority: Minor
>
> While doing a heap analysis of a large cluster(1000+), I found that majority of the strongly referenced objects on heap are coming from ArrivalWindow. 
> Currently ArrivalWindow uses BoundedStatsDeque which uses LinkedBlockingDeque<Long> deque. 
> For a cluster of size 1000, it will translate into 2 million objects. 
> We can use primitives and use an array of long(long[]). This will cut down on the number of objects and the change is not that big. 
>   



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