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https://issues.apache.org/jira/browse/ARTEMIS-2062?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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clebert suconic reopened ARTEMIS-2062:
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> AMQP: Reduce lock contention and allocations on message processing
> -------------------------------------------------------------------
>
> Key: ARTEMIS-2062
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2062
> Project: ActiveMQ Artemis
> Issue Type: Improvement
> Components: AMQP
> Affects Versions: 2.6.2
> Reporter: Timothy Bish
> Assignee: Timothy Bish
> Priority: Minor
> Fix For: 2.7.0
>
>
> On each inbound message the current AMQP handler attempts to top off credit
> for the receiver which results in a new runnable being created to hand off to
> the PagingManager or PagingStore and that code will result in a lock / unlock
> on the connection lock regardless of credit needing to be offered. The
> handler can tell if the credit is below the min credits threshold before ever
> needing to fire this action and can avoid that work for each message by only
> firing off the credit offering code when the credit is known to be low.
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