ARTEMIS-3848 High CPU usage on ReadWriteLocks #4098
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franz1981
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May 25, 2022
franz1981
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...org/apache/activemq/artemis/core/persistence/impl/journal/AbstractJournalStorageManager.java
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clebertsuconic
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@franz1981 it might be an option: however I don't want to break anything else now. I may do that as a major separate task. |
clebertsuconic
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| localListenersPool.set(null); | ||
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| // We are reusing a previously created ArrayList for this localArray | ||
| ArrayList<ReadyListener> localArrayList = readyListenersPool.get(); |
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@franz1981 I'm changing this code you wrote here. This was also introducing many entires on the ThreadLocal.
clebertsuconic
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...ient/src/main/java/org/apache/activemq/artemis/core/remoting/impl/netty/NettyConnection.java
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gemmellr
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...org/apache/activemq/artemis/core/persistence/impl/journal/AbstractJournalStorageManager.java
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...c/main/java/org/apache/activemq/artemis/core/persistence/impl/nullpm/NullStorageManager.java
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JMSTestCase is deprecated anyway. in its older form many many years ago a server would be reused over between tests. what forced us to make such verification to avoid messages from one test leaking into the next. This was because a server startup was expensive many years ago (less efficient code and the hardware available 10 years ago) with the current state of things this is not needed as the server will be started from scratch on every test
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This is caused by too many entries on the HashMap for ThreadLocals. Also: I'm reviewing some readlock usage on the StorageManager to simplify things a little bit.
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This is caused by too many entires on the HashMap for ThreadLocals.
Also: I'm reviewing some readlock usage on the StorageManager to simplify things a little bit.