RFR: JDK-8262068: Improve G1 Full GC by skipping compaction for regions with high survival ratio [v13]

[Hamlin Li]

On Tue, 6 Apr 2021 14:01:15 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

>> Hamlin Li has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   minor code improvement.
>
> This change should go in after PR#3356 which fixes this issue. I think it is a change that is worth pointing out and discussing separately - as you might see from the long description.

@tschatzl Hi Thomas, I'm not sure if I'm ready to integrate this patch, would you mind to help confirm, or give some further comments? Thanks

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PR: https://git.openjdk.java.net/jdk/pull/2760