On Mon, 14 Oct 2024 20:58:43 GMT, Doug Lea <[email protected]> wrote:
> This addresses tendencies in previous update to increase fencing, scanning,
> and signalling that can increase contention, and slow down performance
> especially on ARM platforms. It also uses more ARM-friendly constructions to
> reduce overhead (leading to several changes that all of the same form),
src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java line 1969:
> 1967: int phase = w.phase, r = w.stackPred; // seed from
> registerWorker
> 1968: int cfg = w.config, nsteals = 0, src = -1;
> 1969: for (;;) {
Could the non-labeled version introduce different GC safepoints which could
have adverse impacts? 🤔
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PR Review Comment: https://git.openjdk.org/jdk/pull/21507#discussion_r1803461156
