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 1970:

> 1968:                 Thread t = v.owner;
> 1969:                 v.phase = sp;
> 1970:                 if (v.parking != 0&& t != null) {

`if (v.parking != 0 && t != null) {`

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/16725#discussion_r1415894444