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  1. Derby
  2. DERBY-698

Use Java 5 concurrent collections for better concurrency (rather than synchronized collections)

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
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    Description

      The new Java 5 concurrency utilities includes a set of concurrent collections that allow for greater concurrency than the current synchronized collections we are using. This could provide performance improvements for Derby, particularly in CMT (chip multi-threading) architectures.

      See http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/package-summary.html

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          incorporates

          Improvement - An improvement or enhancement to an existing feature or task. DERBY-3092 Use java.util.concurrent in TransactionTable to improve scalability

          • Major - Major loss of function.
          • Closed
          is related to

          Sub-task - The sub-task of the issue DERBY-2327 Reduce monitor contention in LockSet

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. DERBY-2911 Implement a buffer manager using java.util.concurrent classes

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

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              Unassigned Unassigned
              davidvc David Van Couvering
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                Created:
                Updated:
                Resolved: