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https://issues.apache.org/jira/browse/QPID-7559?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lorenz Quack updated QPID-7559:
-------------------------------
Description:
In {{org.apache.qpid.server.queue.AbstractQueue#deliverSingleMessage}} we
currently call {{_queueConsumerManager.setNotified()}} twice to guard against a
race condition (a message becoming available just before a consumer is moved
from notified to interested). We could potentially optimise this by merging the
Notified and Interested lists.
was:
In no particular order
* In {{org.apache.qpid.server.queue.AbstractQueue#deliverSingleMessage}} we
currently call {{_queueConsumerManager.setNotified()}} twice to guard against a
race condition (a message becoming available just before a consumer is moved
from notified to interested). We could potentially optimise this by merging the
Notified and Interested lists.
* Currently, when the broker receives a AMQP command the response is handled
synchronously in the same IO thread. We could try to separate those steps into
three distinct asynchronous tasks: receive message, process, send response.
This could help us making more efficient use of the IO bandwidth by pipe-lining
the IO workload.
> [Java Broker] Potentially improve performance by refactoring
> QueueConsumerManager
> ---------------------------------------------------------------------------------
>
> Key: QPID-7559
> URL: https://issues.apache.org/jira/browse/QPID-7559
> Project: Qpid
> Issue Type: Improvement
> Components: Java Broker
> Reporter: Lorenz Quack
>
> In {{org.apache.qpid.server.queue.AbstractQueue#deliverSingleMessage}} we
> currently call {{_queueConsumerManager.setNotified()}} twice to guard against
> a race condition (a message becoming available just before a consumer is
> moved from notified to interested). We could potentially optimise this by
> merging the Notified and Interested lists.
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