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https://issues.apache.org/jira/browse/DRILL-6002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16271768#comment-16271768
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ASF GitHub Bot commented on DRILL-6002:
---------------------------------------
GitHub user vrozov opened a pull request:
https://github.com/apache/drill/pull/1058
DRILL-6002: Avoid memory copy from direct buffer to heap while spilling to
local disk
@paul-rogers Please review
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/vrozov/drill DRILL-6002
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/drill/pull/1058.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1058
----
commit 8e9124de681d3a8cd70bf0bb243460cb78dcb295
Author: Vlad Rozov <[email protected]>
Date: 2017-11-22T22:06:13Z
DRILL-6002: Avoid memory copy from direct buffer to heap while spilling to
local disk
----
> 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
>
> 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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