On Mon, 1 Apr 2024 21:07:31 GMT, Vladimir Kozlov <k...@openjdk.org> wrote:
>> Revert [JDK-8152664](https://bugs.openjdk.org/browse/JDK-8152664) RFE >> [changes](https://github.com/openjdk/jdk/commit/b853eb7f5ca24eeeda18acbb14287f706499c365) >> which was used for AOT [JEP 295](https://openjdk.org/jeps/295) >> implementation in JDK 9. The code was left in HotSpot assuming it will help >> in a future. But during work on Leyden we decided to not use it. In Leyden >> cached compiled code will be restored in CodeCache as normal nmethods: no >> need to change VM's runtime and GC code to process them. >> >> I may work on optimizing `CodeBlob` and `nmethod` fields layout to reduce >> header size in separate changes. In these changes I did simple fields >> reordering to keep small (1 byte) fields together. >> >> I do not see (and not expected) performance difference with these changes. >> >> Tested tier1-5, xcomp, stress. Running performance testing. >> >> I need help with testing on platforms which Oracle does not support. > > Vladimir Kozlov has updated the pull request incrementally with one > additional commit since the last revision: > > Removed not_used state of nmethod I filed RFEs: [JDK-8329628](https://bugs.openjdk.org/browse/JDK-8329628): Additional changes after JDK-8329332 [JDK-8329629](https://bugs.openjdk.org/browse/JDK-8329629): GC interfaces should work directly against nmethod instead of CodeBlob ------------- PR Comment: https://git.openjdk.org/jdk/pull/18554#issuecomment-2035421134
