On Tue, 7 May 2024 22:50:18 GMT, Doug Lea <d...@openjdk.org> wrote:
> This set of changes address causes of poor utilization with small numbers of
> cores due to overly aggressive contention avoidance. A number of further
> adjustments were needed to still avoid most contention effects in deployments
> with large numbers of cores
src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java line 1830:
> 1828: phase = w.phase;
> 1829: if ((src = w.source) != DROPPED) {
> 1830: w.source = DROPPED; // else already dropped
@DougLea Would there be any gain in atomically swapping out `w.source` to
`DROPPED`?
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PR Review Comment: https://git.openjdk.org/jdk/pull/19131#discussion_r1596425162
