Clebert Suconic created ARTEMIS-4773: ----------------------------------------
Summary: Performance improvement on page.sync Key: ARTEMIS-4773 URL: https://issues.apache.org/jira/browse/ARTEMIS-4773 Project: ActiveMQ Artemis Issue Type: Improvement Reporter: Clebert Suconic PagingStoreImpl::ioSync is holding a readWriteLock while calling sync: https://github.com/apache/activemq-artemis/blob/c523458a9aa4f67ad0e9bdbc5c4733bc88bf55f6/artemis-server/src/main/java/org/apache/activemq/artemis/core/paging/impl/PagingStoreImpl.java#L516-L529 However that's causing a contention on adding new data: at jdk.internal.misc.Unsafe.park(java.base@17.0.11/Native Method) - parking to wait for <0x000000008087a170> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) at java.util.concurrent.locks.LockSupport.park(java.base@17.0.11/LockSupport.java:211) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(java.base@17.0.11/AbstractQueuedSynchronizer.java:715) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(java.base@17.0.11/AbstractQueuedSynchronizer.java:938) at java.util.concurrent.locks.ReentrantReadWriteLock$WriteLock.lock(java.base@17.0.11/ReentrantReadWriteLock.java:959) at org.apache.activemq.artemis.core.paging.impl.PagingStoreImpl.writePage(PagingStoreImpl.java:1249) at org.apache.activemq.artemis.core.paging.impl.PagingStoreImpl.page(PagingStoreImpl.java:1242) at org.apache.activemq.artemis.core.paging.impl.PagingStoreImpl.page(PagingStoreImpl.java:1173) at org.apache.activemq.artemis.core.persistence.impl.journal.AbstractJournalStorageManager.addToPage(AbstractJournalStorageManager.java:2256 To fix that I'm going to remove the sync from the readWriteLock. and Ignore an alreadyClosedException. I tested this, and also an user and the improvement was significant, especially with a slower device (that's actually more common on cloud providers these days). -- This message was sent by Atlassian Jira (v8.20.10#820010)