On Fri, 29 Mar 2024 19:35:45 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. This pull request has now been integrated. Changeset: 83eba863 Author: Vladimir Kozlov <k...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/83eba863fec5ee7e30c4f9b11122ad1deed3d2ec Stats: 3941 lines in 119 files changed: 1287 ins; 1753 del; 901 mod 8329332: Remove CompiledMethod and CodeBlobLayout classes Reviewed-by: vlivanov, stefank ------------- PR: https://git.openjdk.org/jdk/pull/18554
