On Fri, 6 Sep 2024 10:01:39 GMT, Claes Redestad <redes...@openjdk.org> wrote:
> - A small portion (~5%) of the instrumented overhead when spinning MH/LF > classes in `InvokeBytecodeGenerator` comes from creating the exact same > `RuntimeVisibleAnnotationsAttribute` for every method. Introducing a couple > of constants has a small but measurable impact. > - `classDesc(MemberName.class)` is called ~8000 times during an OpenJDK > build, `classDesc(MethodType.class)` ~900 - special casing looks profitable > - Class name validation narrowed down, use ReferenceClassDescImpl.ofValidated > - Various minor optimizations helping reduce bytecode size and speed up > interpreter execution (This is part of a series of mitigations for regressions caused by the migration to the classfile API, see https://bugs.openjdk.org/browse/JDK-8338542) ------------- PR Comment: https://git.openjdk.org/jdk/pull/20887#issuecomment-2333866592
