RFR: JDK-8319662 ForkJoinPool trims worker threads too slowly [v6]

[Viktor Klang]

On Sun, 3 Dec 2023 17:13:49 GMT, Doug Lea <dl at openjdk.org> wrote:

>> This update cascades timeouts to trim subsequent workers after the first  keepAlive inactive period.
>
> Doug Lea has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Reduce oversignalling and contention; add test

src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java line 2096:

> 2094:      * Tries to inactivate, and if successful, awaits signal or termination.
> 2095:      *
> 2096:      * @param w the worker (may be null if already terminated)

Technically `w` is `WorkQueue` not `ForkJoinWorkerThread` so perhaps s/worker/work queue?

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PR Review Comment: https://git.openjdk.org/jdk/pull/16725#discussion_r1415905526