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  1. JDK
  2. JDK-8086045

Improve the java.lang.invoke first initialization costs

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      It is known from Indify String Concat, Lambdas, and probably Jigsaw that initialization costs for java.lang.invoke infra take a significant time on first access to the infrastructure.

      See a simple experiment here:
        http://cr.openjdk.java.net/~shade/8086045/indy-startup.txt

      The goal for this task is to investigate if we can improve this, or should we conclude the first initialization overheads can be justifiably ignored.

        1. jdk9-dev-lambdatest-10deep.svg
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          Staffan Friberg
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          Staffan Friberg
        3. jdk9-dev-lambdatest-6deep.svg
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          Staffan Friberg
        4. lambdatest_timeline.svg
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          Staffan Friberg
        5. lambdatest.svg
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          Staffan Friberg
        1.
        		 Enable generating DMH classes at link time Sub-task Resolved Claes Redestad  
        2.
        		 Reduce number of classes loaded by common usage of java.lang.invoke Sub-task Resolved Claes Redestad  
        3.
        		 Enable tracing which JLI classes can be pre-generated Sub-task Resolved Claes Redestad  
        4.
        		 Remove unnecessary bridge methods, allocations in java.lang.invoke Sub-task Resolved Claes Redestad  
        5.
        		 Generate corresponding simple DelegatingMethodHandles when generating a DirectMethodHandle at link time Sub-task Resolved Claes Redestad  
        6.
        		 Generate all zero and identity forms at link time Sub-task Resolved Claes Redestad  
        7.
        		 Generate field lambda forms at link time Sub-task Resolved Claes Redestad  
        8.
        		 Re-examine zero form link time pre-generation Sub-task Resolved Claes Redestad  
        9.
        		 Generate non-customized invoker forms at link time Sub-task Resolved Claes Redestad  
        10.
        		 Remove computation of predefined interpreter forms Sub-task Resolved Claes Redestad  
        11.
        		 Enable build-time use of java.lang.invoke resolve tracing Sub-task Resolved Claes Redestad  

            redestad Claes Redestad
            shade Aleksey Shipilev
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              Created:
              Updated:
              Resolved: