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https://issues.apache.org/jira/browse/FLINK-7411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann resolved FLINK-7411.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.4.0

Fixed via 278989c7f3ebaa095838a32b031b5fb8335ee228

> minor performance improvements in NettyMessage
> ----------------------------------------------
>
>                 Key: FLINK-7411
>                 URL: https://issues.apache.org/jira/browse/FLINK-7411
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Network
>    Affects Versions: 1.4.0
>            Reporter: Nico Kruber
>            Assignee: Nico Kruber
>            Priority: Minor
>             Fix For: 1.4.0
>
>
> {{NettyMessage}} may be improved slightly performance-wise in these regards:
> - in {{NettyMessage.NettyMessageDecoder#decode()}}: instead of having 
> multiple if-elseif-... use a switch to cycle through the message ID
> - use a static {{NettyMessage}} subtype {{readFrom(ByteBuf buffer)}} - we do 
> not really need to have a virtual function here



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