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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ARTEMIS-1586) Reduce GC pressure due to String allocations on Core protocol
Date Sat, 13 Jan 2018 18:04:02 GMT

    [ https://issues.apache.org/jira/browse/ARTEMIS-1586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16325271#comment-16325271
] 

ASF GitHub Bot commented on ARTEMIS-1586:
-----------------------------------------

Github user michaelandrepearce commented on the issue:

    https://github.com/apache/activemq-artemis/pull/1757
  
    Here is more evidence we really want bits like routing type not as a typed property but
as a top level header, really dont want to be creating typed properties if we can not (it
creates hashmap and everything ->
    
    <img width="972" alt="screen shot 2018-01-13 at 18 02 09" src="https://user-images.githubusercontent.com/1387822/34908711-ee6ee63a-f88b-11e7-8b80-0bf26767ad80.png">



> Reduce GC pressure due to String allocations on Core protocol
> -------------------------------------------------------------
>
>                 Key: ARTEMIS-1586
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-1586
>             Project: ActiveMQ Artemis
>          Issue Type: Improvement
>            Reporter: Francesco Nigro
>            Assignee: Francesco Nigro
>
> The core protocol produce a huge amount of StringValue/SimpleString instances during
CoreMessage decoding of SessionSendMessages.
> Often these instances are the same during the lifetime of a client/server connection:
providing efficient interners would help to reduce the GC pressure, increasing the broker
capacity/scalability.



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