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From "Dejan Bosanac (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AMQ-4758) Improve performance of pull consumers
Date Tue, 01 Oct 2013 10:25:23 GMT

     [ https://issues.apache.org/jira/browse/AMQ-4758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dejan Bosanac resolved AMQ-4758.
--------------------------------

    Resolution: Fixed

Fixed with http://git-wip-us.apache.org/repos/asf/activemq/commit/2a5ad365

> Improve performance of pull consumers
> -------------------------------------
>
>                 Key: AMQ-4758
>                 URL: https://issues.apache.org/jira/browse/AMQ-4758
>             Project: ActiveMQ
>          Issue Type: Improvement
>    Affects Versions: 5.8.0
>            Reporter: Dejan Bosanac
>            Assignee: Dejan Bosanac
>             Fix For: 5.9.0
>
>
> When we have a queue with only pull consumers (prefetch 0), there are a lot of necessary
work being done trying to dispatch every paged message to every consumer. The problem is that
most of consumers are full all the time and we lose a lot of cpu time trying to traverse all
messages. The problem is more apparent with large number of paged messages.



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