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  1. JDK
  2. JDK-8080588 VarHandles development
  3. JDK-8153870

Result-boxed and result-less VarHandles are significantly penalized

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    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: P2
    • Resolution: Fixed
    • Affects Version/s: 9
    • Fix Version/s: None
    • Component/s: core-libs
    • Labels:

      Description

      This might be generic to VarHandles to begin with, but best demonstrated with this CompareAndExchangeTest:
       http://cr.openjdk.java.net/~shade/8153870/BadCAE.java
       http://cr.openjdk.java.net/~shade/8153870/bad-cae.txt

      The problem is that we hit slow-path if we don't match the signature exactly.

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          New Feature - A new feature of the product, which has yet to be developed. JDK-8080588 VarHandles development

          • P3 - Major loss of function.
          • Resolved
          relates to

          Enhancement - null JDK-8160821 VarHandle accesses are penalized when argument conversion is required

          • P3 - Major loss of function.
          • Open

          Sub-task - The sub-task of the issue JDK-8155258 VarHandle implementation improvements

          • P3 - Major loss of function.
          • Resolved

            Activity

              People

              Assignee:
              psandoz Paul Sandoz
              Reporter:
              shade Aleksey Shipilev
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                Dates

                Created:
                Updated:
                Resolved: