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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, 06 Jan 2018 02:33:02 GMT

    [ https://issues.apache.org/jira/browse/ARTEMIS-1586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16314315#comment-16314315
] 

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

Github user franz1981 commented on the issue:

    https://github.com/apache/activemq-artemis/pull/1752
  
    @clebertsuconic you're right , all good points: I was trying to understand which parts
could benefit (if needed of course) such kind of optimizations too and @michaelandrepearce
is helping me a lot to understand common cases that I haven't covered properly or that are
breaking any of the assumptions I've made.
    Re the benefits the one I can anticipate with a standard JMS test is a reduction of >3X
of garbage productions without any perf regression, but as @michaelandrepearce pointed me
maybe other tests would invalidate such improvements...


> 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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