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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ARTEMIS-1807) File-based Large Message encoding should use read-only mmap
Date Thu, 19 Apr 2018 09:50:00 GMT

    [ https://issues.apache.org/jira/browse/ARTEMIS-1807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16443805#comment-16443805
] 

ASF GitHub Bot commented on ARTEMIS-1807:
-----------------------------------------

Github user mtaylor commented on the issue:

    https://github.com/apache/activemq-artemis/pull/2015
  
    @michaelandrepearce If you are using non large messages, and without paging, this should
have 0 impact.  @franz1981 can you confirm.


> File-based Large Message encoding should use read-only mmap
> -----------------------------------------------------------
>
>                 Key: ARTEMIS-1807
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-1807
>             Project: ActiveMQ Artemis
>          Issue Type: Improvement
>          Components: Broker
>    Affects Versions: 2.5.0
>            Reporter: Francesco Nigro
>            Assignee: Francesco Nigro
>            Priority: Major
>
> File-based LargeServerMessageImpl should use read-only memory mapping while reading the
file, in order to:
>  * reduce the number of copiesĀ 
>  * reduce the context switches



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