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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HBASE-16703) Explore object pooling of SeekerState
Date Mon, 26 Sep 2016 06:53:21 GMT

     [ https://issues.apache.org/jira/browse/HBASE-16703?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

ramkrishna.s.vasudevan reassigned HBASE-16703:
----------------------------------------------

    Assignee: ramkrishna.s.vasudevan

> Explore object pooling of SeekerState
> -------------------------------------
>
>                 Key: HBASE-16703
>                 URL: https://issues.apache.org/jira/browse/HBASE-16703
>             Project: HBase
>          Issue Type: Task
>            Reporter: Andrew Purtell
>            Assignee: ramkrishna.s.vasudevan
>
> In read workloads 35% of the allocation pressure produced by servicing RPC requests,
when block encoding is enabled, comes from BufferedDataBlockEncoder$SeekerState.<init>,
where we allocate two byte arrays of INITIAL_KEY_BUFFER_SIZE in length. There's an opportunity
for object pooling of SeekerState here. Subsequent code checks if those byte arrays are sized
sufficiently to handle incoming data to copy. The arrays will be resized if needed. 



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