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  1. JDK
  2. JDK-8086045

Improve the java.lang.invoke first initialization costs

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    Description

      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.

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          duplicates

          Bug - A problem which impairs or prevents the functions of the product. JDK-8150717 Bootstrapping invokedynamic call sites can significantly increase time spent in the VM

          • P3 - Major loss of function.
          • Closed
          is blocked by

          Bug - A problem which impairs or prevents the functions of the product. JDK-8163373 Rewrite GenerateJLIClassesPlugin to avoid reflective calls into java.lang.invoke

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

          Enhancement - null JDK-8251851 InvokerBytecodeGenerator::lookupPregenerated does not support all cases

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

          Enhancement - null JDK-8247536 Support for pre-generated java.lang.invoke classes in CDS static archive

          • P3 - Major loss of function.
          • Resolved

          Enhancement - null JDK-8152641 Plugin to generate BMH$Species classes ahead-of-time

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

          JEP - Java Enhancement Proposal JDK-8085796 JEP 280: Indify String Concatenation

          • P3 - Major loss of function.
          • Closed

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              redestad Claes Redestad
              shade Aleksey Shipilev
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