Jeff Zhou created TUBEMQ-233:
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Summary: Performance Improvement on FileSegmentList
Key: TUBEMQ-233
URL: https://issues.apache.org/jira/browse/TUBEMQ-233
Project: Apache TubeMQ
Issue Type: Improvement
Components: Broker
Reporter: Jeff Zhou
Assignee: Jeff Zhou
Current implementation of FileSegmentList is based on native compact array
(Object[]), so:
1. it lacks flexibility on add/remove;
2. it would suffer a great performance impact while applying CAS performing an
operation;
3. it may cause phantom read as multiple temporary copy of candidates may fail
to announce its update due to unintended currentView change;
4. less space efficiency, as there might be multiple temporary copies in system
in order to do an update.
So this issue is raised to optimize the storage list, and it's to exploit
RoundQueue structure to achieve a better performance while make use of weak CAS
to better adapt multi-threaded runtime.
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