[jira] [Commented] (ARTEMIS-1999) Broker is using 100% core's CPU time if message grouping is used

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARTEMIS-1999?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16564612#comment-16564612 ] 

ASF GitHub Bot commented on ARTEMIS-1999:
-----------------------------------------

Github user clebertsuconic commented on the issue:

    https://github.com/apache/activemq-artemis/pull/2203
  
    @franz1981 please watch the examples. On my private CI an example failed on your branch.


> Broker is using 100% core's CPU time if message grouping is used
> ----------------------------------------------------------------
>
>                 Key: ARTEMIS-1999
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-1999
>             Project: ActiveMQ Artemis
>          Issue Type: Improvement
>          Components: Broker
>    Affects Versions: 2.6.2
>            Reporter: Francesco Nigro
>            Assignee: Francesco Nigro
>            Priority: Major
>             Fix For: 2.6.3
>
>         Attachments: cpu.svg
>
>
> When consuming messages with message grouping set on the broker seem to consume excessive amount of CPU time. On 12 core CPU it can be observed that one core goes 100% and stays that way as long as there is more than one consumer attached to a queue. Once the number of consumers is reduced to 1 the CPU usage goes to normal. But moment another consumer is attached another CPU core goes 100%.
>  



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)