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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-5945) Reduce buffer copies in IPC server response path
Date Thu, 17 May 2012 06:07:02 GMT

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

Todd Lipcon updated HBASE-5945:
-------------------------------

    Status: Patch Available  (was: Open)
    
> 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, 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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