[jbossts-issues] [JBoss JIRA] (JBTM-2105) TxStats.enable generates excessive GC overhead

Will Reichert created JBTM-2105: ----------------------------------- Summary: TxStats.enable generates excessive GC overhead Key: JBTM-2105 URL: https://issues.jboss.org/browse/JBTM-2105 Project: JBoss Transaction Manager Issue Type: Bug Security Level: Public (Everyone can see) Components: Transaction Core Affects Versions: 5.0.1.Final, 4.17.15 Reporter: Will Reichert Assignee: Tom Jenkinson Fix For: 4.17.18, 4.17.15 TxStats.enable() calls arjPropertyManager.getCoordinatorEnvironmentBean() with each invocation which results in String concatenation to generate a HashMap key. The String concatenation generated 1.61GB of GC overhead during a 20 minute performance test. Changing TxStats to use a private static reference to the Bean decreases the GC overhead to 20KB for the same 20 minute test -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira