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  1. Derby
  2. DERBY-3092

Use java.util.concurrent in TransactionTable to improve scalability

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 10.3.1.4
    • 10.6.1.0
    • Store
    • None
    • Performance

    Description

      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.

      Attachments

        1. derby-3092-1a-map.diff
          11 kB
          Knut Anders Hatlen
        2. derby-3092-1b-map.diff
          11 kB
          Knut Anders Hatlen
        3. derby-3092-2a-count.diff
          1.0 kB
          Knut Anders Hatlen
        4. derby-3092-3a-xa-visitor.diff
          5 kB
          Knut Anders Hatlen
        5. derby-3092-4a-more-visitors.diff
          16 kB
          Knut Anders Hatlen
        6. derby-3092-5a-dynamic-loading.diff
          16 kB
          Knut Anders Hatlen
        7. derby-3092-5a-dynamic-loading.stat
          0.5 kB
          Knut Anders Hatlen
        8. xact-concept.diff
          7 kB
          Dyre Tjeldvoll
        9. xact-concept.png
          7 kB
          Knut Anders Hatlen

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            knutanders Knut Anders Hatlen
            dyret Dyre Tjeldvoll
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            Dates

              Created:
              Updated:
              Resolved:

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