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8204947: Port ShenandoahTaskTerminator to mainline and make it default

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Reviewed-by: tschatzl, rkennke
This commit is contained in:
Zhengyu Gu 2018-12-07 13:55:06 -05:00
parent df4b7015bf
commit b9769c732e
17 changed files with 418 additions and 52 deletions
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8
src/hotspot/share/gc/parallel/psParallelCompact.cpp
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@ -2100,7 +2100,7 @@ void PSParallelCompact::marking_phase(ParCompactionManager* cm,
uint parallel_gc_threads = heap->gc_task_manager()->workers();
uint active_gc_threads = heap->gc_task_manager()->active_workers();
TaskQueueSetSuper* qset = ParCompactionManager::stack_array();
ParallelTaskTerminator terminator(active_gc_threads, qset);
TaskTerminator terminator(active_gc_threads, qset);
PCMarkAndPushClosure mark_and_push_closure(cm);
ParCompactionManager::FollowStackClosure follow_stack_closure(cm);
@ -2129,7 +2129,7 @@ void PSParallelCompact::marking_phase(ParCompactionManager* cm,
if (active_gc_threads > 1) {
for (uint j = 0; j < active_gc_threads; j++) {
q->enqueue(new StealMarkingTask(&terminator));
q->enqueue(new StealMarkingTask(terminator.terminator()));
}
}
@ -2459,12 +2459,12 @@ void PSParallelCompact::compact() {
uint parallel_gc_threads = heap->gc_task_manager()->workers();
uint active_gc_threads = heap->gc_task_manager()->active_workers();
TaskQueueSetSuper* qset = ParCompactionManager::region_array();
ParallelTaskTerminator terminator(active_gc_threads, qset);
TaskTerminator terminator(active_gc_threads, qset);
GCTaskQueue* q = GCTaskQueue::create();
prepare_region_draining_tasks(q, active_gc_threads);
enqueue_dense_prefix_tasks(q, active_gc_threads);
enqueue_region_stealing_tasks(q, &terminator, active_gc_threads);
enqueue_region_stealing_tasks(q, terminator.terminator(), active_gc_threads);
{
GCTraceTime(Trace, gc, phases) tm("Par Compact", &_gc_timer);