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https://issues.apache.org/jira/browse/HBASE-5945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13551632#comment-13551632
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stack commented on HBASE-5945:
------------------------------
[~devaraj] I'd say let this issue be about reducing buffer copies. hbase-7533
should be spec., yeah. New issue for implementation? Or, just leave that over
in hbase-7533. Trying to implement the spec. will probably bring on a spec
edit or two I'd say.
> 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.2.1.patch, 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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