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  1. OpenJPA
  2. OPENJPA-2292

Reduce object allocations

        Details

        • Type: Improvement
        • Status: Closed
        • Priority: Major
        • Resolution: Fixed
        • Affects Version/s: 2.2.1, 2.2.1.1, 2.3.0
        • Fix Version/s: 2.2.2, 2.2.1.1, 2.3.0
        • Component/s: jdbc, performance
        • Labels:
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          Description

          While doing some performance analysis we have found that we can reduce object allocations a number of places in the code base.

          • In JDBCStoreManager we can create a simple pool(list) of CancelPreparedStatement/CancelStatement.
          • BrokerImpl.initializeOperatingSet, use a java.util.IdentityHashMap rather than org.apache.commons.collections.map.IdentityMap.IdentityMap.

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            curtisr7 Rick Curtis added a comment - - edited

            Committed code to trunk, 2.2.x, and 2.2.1.x for the JDBCStoreManager change.

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            curtisr7 Rick Curtis added a comment - - edited Committed code to trunk, 2.2.x, and 2.2.1.x for the JDBCStoreManager change.
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            curtisr7 Rick Curtis added a comment -

            Committed change to use java.util.IdentityHashMap in BrokerImpl.initializeOperatingSet to reduce object allocations to trunk, 2.2.x, and 2.2.1.x

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            curtisr7 Rick Curtis added a comment - Committed change to use java.util.IdentityHashMap in BrokerImpl.initializeOperatingSet to reduce object allocations to trunk, 2.2.x, and 2.2.1.x

              People

              • Assignee:
                curtisr7 Rick Curtis
                Reporter:
                curtisr7 Rick Curtis
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                Dates

                • Created:
                  Updated:
                  Resolved:

                  Development