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https://issues.apache.org/jira/browse/CASSANDRA-9496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14563184#comment-14563184
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Brandon Williams commented on CASSANDRA-9496:
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We could also expose the window size as being tunable, I'm pretty sure 1k was
just randomly chosen.
> 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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