Francesco Nigro created ARTEMIS-1999:
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Summary: 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
Fix For: 2.6.3
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%.
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