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  1. JDK
  2. JDK-6684579

SoftReference processing can be made more efficient

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Details

    • Enhancement
    • Resolution: Fixed
    • P2
    • hs14
    • hs10
    • hotspot
    • None
    • gc
    • 1.1
    • 1.1
    • b09
    • x86
    • linux

    Backports

      Description

        There are two ways in which the performance problem encountered by the
        customer (see display 1 in "Comments" section) can be ameliorated
        via changes/improvements to SoftReference processing within
        the GC subsystem, one of which is specific to concurrent collectors.

        The customer's application has, meanwhile, taken steps at the application
        level to avoid (workaround) this performance problem.

        A simple test case will be attached to this bug, illustrating the problem,
        and will serve to highlight the performance improvement as a result of
        the "Suggested Fix".

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          Issue Links

            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-2172863 SoftReference processing can be made more efficient

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-2170550 SoftReference processing can be made more efficient

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-4214755 (ref) JDK1.2 handling of nested refs seems to go against API spec

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Closed

            Bug - A problem which impairs or prevents the functions of the product. JDK-6687570 64-bit server compiler crashed in Parse::merge_exception

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Closed

            Enhancement - null JDK-6990442 (ref) Regression to clearing of a softly reachable object

            • P3 - Major loss of function.
            • Open

            Bug - A problem which impairs or prevents the functions of the product. JDK-6778647 snap{,_policy}() should be renamed setup{,_policy}()

            • P5 - Cosmetic problem like misspelt words or misaligned text.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-6684596 +ParallelRefProcEnabled hangs in Reference processing phase

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

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              People

                ysr Y. Ramakrishna
                ysr Y. Ramakrishna
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                Dates

                  Created:
                  Updated:
                  Resolved:
                  Imported:
                  Indexed: