Francesco Nigro created ARTEMIS-1185:
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Summary: Inter-Process Journal Sampler Profiler + CLI command
Key: ARTEMIS-1185
URL: https://issues.apache.org/jira/browse/ARTEMIS-1185
Project: ActiveMQ Artemis
Issue Type: New Feature
Components: Broker
Reporter: Francesco Nigro
Assignee: Francesco Nigro
Priority: Minor
It provides a sampling profiler on buffered ASYNCIO/NIO based journals.
The profiling has a minimal cost in term of CPU time for each sample (the
dominant costs are System.nanoTime() and a single cache line invalidation) and
total memory footprint (~OS page size in bytes).
A proper CLI command activates a sampler to collect (ie CSV) the profiled data,
showing the precision of the sampling: data loss is not considered a failure
condition.
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