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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2013/08/15 21:26:35 UTC

[jira] [Updated] (HBASE-5945) Reduce buffer copies in IPC server response path

     [ https://issues.apache.org/jira/browse/HBASE-5945?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack updated HBASE-5945:
-------------------------

    Fix Version/s:     (was: 0.95.2)
                   0.96.0
    
> 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: 0.95.2
>            Reporter: Todd Lipcon
>            Assignee: stack
>             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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