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https://issues.apache.org/jira/browse/HBASE-5945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13547049#comment-13547049
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Devaraj Das commented on HBASE-5945:
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I swear that I had generated the patch correctly but it seems like I uploaded
the incorrect one again.. I'll update the patch shortly with the comments.
Thanks for looking, [~stack].
> Reduce buffer copies in IPC server response path
> ------------------------------------------------
>
> Key: HBASE-5945
> URL: https://issues.apache.org/jira/browse/HBASE-5945
> Project: HBase
> Issue Type: Improvement
> Components: IPC/RPC
> Affects Versions: 0.96.0
> Reporter: Todd Lipcon
> Assignee: stack
> Priority: Blocker
> Fix For: 0.96.0
>
> Attachments: 5945-in-progress.2.patch, 5945-in-progress.patch,
> buffer-copies.txt, even-fewer-copies.txt, hbase-5495.txt
>
>
> The new PB code is sloppy with buffers and makes several needless copies.
> This increases GC time a lot. A few simple changes can cut this back down.
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