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https://issues.apache.org/jira/browse/HBASE-5945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13269128#comment-13269128
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stack commented on HBASE-5945:
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Looks great Todd.
Could we keep this DataOutputBuffer for reuse?
{code}
+ DataOutputBuffer buf = new DataOutputBuffer(size);
{code}
> 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
> Affects Versions: 0.96.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Critical
> Attachments: buffer-copies.txt, even-fewer-copies.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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