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From "Dyre Tjeldvoll (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-3092) Use java.util.concurrent in TransactionTable and XactFactory to improve scalability
Date Fri, 28 Sep 2007 12:59:50 GMT
Use java.util.concurrent in TransactionTable and XactFactory to improve scalability
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                 Key: DERBY-3092
                 URL: https://issues.apache.org/jira/browse/DERBY-3092
             Project: Derby
          Issue Type: Improvement
          Components: Performance, Store
    Affects Versions: 10.3.1.4
            Reporter: Dyre Tjeldvoll


Running scalability tests with the client and buffer manager from DERBY-2911 shows that access
to the TransactionTable.trans (a Hashtable) and XactFactory.tranId (a shared long) are the
next major sources of contention. 

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