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https://issues.apache.org/jira/browse/ARTEMIS-1273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16081352#comment-16081352
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ASF GitHub Bot commented on ARTEMIS-1273:
-----------------------------------------
Github user clebertsuconic commented on the issue:
https://github.com/apache/activemq-artemis/pull/1390
so, if you could make a change to #1395 after merged? (if you agree with
that PR), in such way that ProcessorBase would take the Queue type that you
want.
> Bounded OrderedExecutor
> -----------------------
>
> Key: ARTEMIS-1273
> URL: https://issues.apache.org/jira/browse/ARTEMIS-1273
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker
> Reporter: Francesco Nigro
> Assignee: Francesco Nigro
>
> The default OrderedExecutor is limited by:
> # scattered allocations of linked list nodes
> # no OOM protection
> # always garbage producing
> # uses a not scalable (ie false sharing + CAS based) handmade spin lock
> # cost of monitoring pending tasks list size O(n)
> # doesn't allow optimized version of task submission (ie single producer)
> The BoundedOrderedExecutor (enabled by default) solves them:
> # uses Array based lock/wait-free queues to have contiguos allocations
> # OOM protected limiting the allowed max size of the queue
> # produce garbage only if the consumer can't keep up with the producer by a
> configurable amount
> # uses a scalable handmade spin lock (XADD based)
> # cost of monitoring pending tasks list size O(1)
> # allow optimized versions of task submission using different specialized
> concurrent queues
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