RFR: 8339162: [REDO] JDK-8338440 Parallel: Improve fragmentation mitigation in Full GC

[Guoxiong Li]

On Wed, 6 Nov 2024 03:51:55 GMT, Guoxiong Li <gli at openjdk.org> wrote:

> The `region_align_up` is not the `next_region_start_address`.

Even an experienced developer would misuse the function `region_align_up`, it may be good to add comment (in another PR?) to `region_align_up` to clarify its usage.

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PR Comment: https://git.openjdk.org/jdk/pull/21872#issuecomment-2458679167