[jbossts-issues] [JBoss JIRA] (JBTM-1907) com.arjuna.ats.internal.arjuna.utils.UuidProcessId.getpid is slow

[Stuart Douglas (JIRA)]

Stuart Douglas created JBTM-1907:
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             Summary: com.arjuna.ats.internal.arjuna.utils.UuidProcessId.getpid is slow
                 Key: JBTM-1907
                 URL: https://issues.jboss.org/browse/JBTM-1907
             Project: JBoss Transaction Manager
          Issue Type: Bug
      Security Level: Public (Everyone can see)
    Affects Versions: 5.0.0.M4
            Reporter: Stuart Douglas
            Assignee: Tom Jenkinson


the getPid() method uses a synchronized block that is hit on every call, which can causes a lot of unnecessary contention. I'm not sure why the pid cannot just be initialized in the constructor? Or failing that a volatile var + double checked locking would be faster.


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