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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-7411) minor performance improvements in NettyMessage
Date Mon, 04 Sep 2017 14:17:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-7411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16152653#comment-16152653
] 

ASF GitHub Bot commented on FLINK-7411:
---------------------------------------

Github user pnowojski commented on a diff in the pull request:

    https://github.com/apache/flink/pull/4517#discussion_r136831169
  
    --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/io/network/netty/NettyMessage.java
---
    @@ -439,20 +437,23 @@ ByteBuf write(ByteBufAllocator allocator) throws IOException {
     			}
     		}
     
    -		@Override
    -		public void readFrom(ByteBuf buffer) throws IOException {
    +		static TaskEventRequest readFrom(ByteBuf buffer, ClassLoader classLoader) throws IOException
{
    +			TaskEventRequest result = new TaskEventRequest();
    --- End diff --
    
    ditto


> 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
>
> {{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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