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From "Vlad Rozov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-6002) Avoid memory copy from direct buffer to heap while spilling to local disk
Date Mon, 22 Jan 2018 19:47:00 GMT

     [ https://issues.apache.org/jira/browse/DRILL-6002?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vlad Rozov updated DRILL-6002:
------------------------------
    Labels: ready-to-commit  (was: )

> Avoid memory copy from direct buffer to heap while spilling to local disk
> -------------------------------------------------------------------------
>
>                 Key: DRILL-6002
>                 URL: https://issues.apache.org/jira/browse/DRILL-6002
>             Project: Apache Drill
>          Issue Type: Improvement
>            Reporter: Vlad Rozov
>            Assignee: Vlad Rozov
>            Priority: Major
>              Labels: ready-to-commit
>
> When spilling to a local disk or to any file system that supports WritableByteChannel
it is preferable to avoid copy from off-heap to java heap as WritableByteChannel can work
directly with the off-heap memory.  



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