RFR: 8137022: Concurrent refinement thread adjustment and (de-)activation suboptimal [v3]

[Kim Barrett]

On Wed, 5 Oct 2022 13:24:19 GMT, Stefan Johansson <sjohanss at openjdk.org> wrote:

>> Kim Barrett has updated the pull request incrementally with three additional commits since the last revision:
>> 
>>  - wanted vs needed nomenclature
>>  - remove several spurious "scan"
>>  - delay => wait_time_ms
>
> Marked as reviewed by sjohanss (Reviewer).

Thanks @kstefanj , @tschatzl , @albertnetymk , @walulyai for reviews and additional performance testing.

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PR: https://git.openjdk.org/jdk/pull/10256