On Thu, 7 Aug 2025 14:03:40 GMT, Doug Lea <d...@openjdk.org> wrote:
>> This set of updates reduces contention-based performance loss under heavy
>> over-subscription, while also improving perfomance more generally.
>
> Doug Lea has updated the pull request incrementally with one additional
> commit since the last revision:
>
> Avoid underutilization on resize
src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java line 1894:
> 1892: if (a != null && k < a.length && k >= 0 && a[k] == null)
> 1893: break;
> 1894: if (c == (c = ctl) && c == (c = compareAndExchangeCtl(c,
> nc))) {
CCAE to reduce cache traffic contention on `ctl` is good. 👍
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PR Review Comment: https://git.openjdk.org/jdk/pull/26479#discussion_r2272690784
