On Sun, 17 Nov 2024 15:33:02 GMT, Doug Lea <d...@openjdk.org> 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), > > Doug Lea has updated the pull request incrementally with one additional > commit since the last revision: > > Ensure InnocuousForkJoinWorkerThread usable with or without SecurityManager
src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java line 2053: > 2051: if (((phase = deactivate(w, phase)) & IDLE) != 0) > 2052: break; > 2053: src = -1; @DougLea So if I understand this correctly, the setting of `src` to -1 is to differ from `j` on the next loop step (since `j` is bound by bitmask to be positive)? ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/21507#discussion_r1848650671
