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From "Martin Chan Shu Ching (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMQ-3933) TransportConnection.dispatchQueue synchronized LinkedList to ConcurrentLinkedQueue
Date Wed, 18 Jul 2012 10:07:34 GMT

     [ https://issues.apache.org/jira/browse/AMQ-3933?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Martin Chan Shu Ching updated AMQ-3933:
---------------------------------------

    Attachment: TestQueue.java
    
> TransportConnection.dispatchQueue synchronized LinkedList to ConcurrentLinkedQueue
> ----------------------------------------------------------------------------------
>
>                 Key: AMQ-3933
>                 URL: https://issues.apache.org/jira/browse/AMQ-3933
>             Project: ActiveMQ
>          Issue Type: Improvement
>    Affects Versions: 5.6.0
>         Environment: Linux 
>            Reporter: Martin Chan Shu Ching
>            Priority: Minor
>              Labels: newbie
>         Attachments: TestQueue.java
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> TransportConnection.dispatchQueue currently uses a synchronized LinkedList to pass all
objects between the broker and the transport connection to the client. This isn't very efficient
as the whole list is locked whenever an item is added or removed. ConcurrentLinkedQueue is
about 20% faster in my tests.

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