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https://issues.apache.org/jira/browse/QPID-8013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16237773#comment-16237773
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Keith Wall commented on QPID-8013:
----------------------------------

In addition, the choice of {{AtomicLong}} for the replacement statistics on 
AbstractAMQPConnection may have been a poor choice (see 
http://normanmaurer.me/blog/2013/10/28/Lesser-known-concurrent-classes-Part-1/)

> [Broker-J] Reduce footprint of AMQP 1.0 protocol objects
> --------------------------------------------------------
>
>                 Key: QPID-8013
>                 URL: https://issues.apache.org/jira/browse/QPID-8013
>             Project: Qpid
>          Issue Type: Improvement
>          Components: Java Broker
>            Reporter: Keith Wall
>            Priority: Normal
>             Fix For: Future
>
>
> Comparing the footprints of AMQP 1.0 protocol objects with the older 
> protocols shows that the 1.0 counterparts are larger.  Some tuning would be 
> beneficial.  For instance, the {{_sendingSessions}} and 
> {{_receivingSessions}} arrays are channel max sized, even if the client never 
> uses that many sessions.



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