RFR: 8342818: Implement CPU Time Profiling for JFR [v4]

[Johannes Bechberger]

On Wed, 30 Oct 2024 19:34:23 GMT, Johannes Bechberger <jbechberger at openjdk.org> wrote:

>> This is the code for the [JEP draft: CPU Time based profiling for JFR].
>
> Johannes Bechberger has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove min_valid_free_size_bytes

I see a pattern in the last two segfaults, it seems to conform to what I wrote before. So I probably need a test case that unloads a lot of classes.
Do you share my intuition?

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PR Comment: https://git.openjdk.org/jdk/pull/20752#issuecomment-2450578772