RFR: JDK-8264987: G1: Fill BOTs for Survivor-turned-to-Old regions in full gc [v4]

[Hamlin Li]

On Thu, 15 Apr 2021 15:32:20 GMT, Stefan Johansson <sjohanss at openjdk.org> wrote:

>> Hamlin Li has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains four commits:
>> 
>>  - Merge branch 'master' into fill-bots-in-full-gc
>>  - refine comments, names.
>>  - refine the code.
>>  - JDK-8264987: G1: Fill BOTs for Survivor-turned-to-Old regions in full gc
>
> Looks good.

Thanks @kstefanj @tschatzl for review, I think I'm good to integrate this patch now, would you mind to help double confirm?

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PR: https://git.openjdk.java.net/jdk/pull/3459