RFR: 8343789: Move mutable nmethod data out of CodeCache [v6]

[Vladimir Kozlov]

On Tue, 28 Jan 2025 12:28:08 GMT, Boris Ulasevich <bulasevich at openjdk.org> wrote:

>> Looks like this also triggers with `compiler/escapeAnalysis/TestFindInstMemRecursion.java` on Linux x64 and `-XX:-TieredCompilation -XX:+StressReflectiveCode -XX:-ReduceInitialCardMarks -XX:-ReduceBulkZeroing -XX:-ReduceFieldZeroing`. This change needs more testing before integration.
>
> @TobiHartmann 
> 
>> I see this failure in our testing with an internal test
> 
> Thanks for catching that issue! I've addressed it.
> 
>> This change needs more testing before integration.
> 
> Thank you for pointing that out. Here is my test plan for additional validation. Please let me know if you have any suggestions or if adjustments are needed:
> 
> Functional Testing:
> - Platforms: x86 and AArch64
> - Build Configurations: Release, Fastdebug, and Slowdebug
> - Java Options: Default and -XX:+UseShenandoahGC
> - Tests: jtreg tests covering Hotspot and JDK, tiers 1–3
> 
> Performance Testing:
> - Benchmarks: DaCapo and Renaissance
> - Modes: Default and -XX:+UseShenandoahGC

@bulasevich, please wait my review before integration.

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PR Comment: https://git.openjdk.org/jdk/pull/21276#issuecomment-2628101640