471 return young_gen()->eden_space()->tlab_capacity(thr);
472 }
473
474 size_t ParallelScavengeHeap::tlab_used(Thread* thr) const {
475 return young_gen()->eden_space()->tlab_used(thr);
476 }
477
478 size_t ParallelScavengeHeap::unsafe_max_tlab_alloc(Thread* thr) const {
479 return young_gen()->eden_space()->unsafe_max_tlab_alloc(thr);
480 }
481
482 HeapWord* ParallelScavengeHeap::allocate_new_tlab(size_t min_size, size_t requested_size, size_t* actual_size) {
483 HeapWord* result = young_gen()->allocate(requested_size);
484 if (result != NULL) {
485 *actual_size = requested_size;
486 }
487
488 return result;
489 }
490
491 void ParallelScavengeHeap::accumulate_statistics_all_tlabs() {
492 CollectedHeap::accumulate_statistics_all_tlabs();
493 }
494
495 void ParallelScavengeHeap::resize_all_tlabs() {
496 CollectedHeap::resize_all_tlabs();
497 }
498
499 // This method is used by System.gc() and JVMTI.
500 void ParallelScavengeHeap::collect(GCCause::Cause cause) {
501 assert(!Heap_lock->owned_by_self(),
502 "this thread should not own the Heap_lock");
503
504 uint gc_count = 0;
505 uint full_gc_count = 0;
506 {
507 MutexLocker ml(Heap_lock);
508 // This value is guarded by the Heap_lock
509 gc_count = total_collections();
510 full_gc_count = total_full_collections();
511 }
512
513 VM_ParallelGCSystemGC op(gc_count, full_gc_count, cause);
514 VMThread::execute(&op);
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471 return young_gen()->eden_space()->tlab_capacity(thr);
472 }
473
474 size_t ParallelScavengeHeap::tlab_used(Thread* thr) const {
475 return young_gen()->eden_space()->tlab_used(thr);
476 }
477
478 size_t ParallelScavengeHeap::unsafe_max_tlab_alloc(Thread* thr) const {
479 return young_gen()->eden_space()->unsafe_max_tlab_alloc(thr);
480 }
481
482 HeapWord* ParallelScavengeHeap::allocate_new_tlab(size_t min_size, size_t requested_size, size_t* actual_size) {
483 HeapWord* result = young_gen()->allocate(requested_size);
484 if (result != NULL) {
485 *actual_size = requested_size;
486 }
487
488 return result;
489 }
490
491 void ParallelScavengeHeap::resize_all_tlabs() {
492 CollectedHeap::resize_all_tlabs();
493 }
494
495 // This method is used by System.gc() and JVMTI.
496 void ParallelScavengeHeap::collect(GCCause::Cause cause) {
497 assert(!Heap_lock->owned_by_self(),
498 "this thread should not own the Heap_lock");
499
500 uint gc_count = 0;
501 uint full_gc_count = 0;
502 {
503 MutexLocker ml(Heap_lock);
504 // This value is guarded by the Heap_lock
505 gc_count = total_collections();
506 full_gc_count = total_full_collections();
507 }
508
509 VM_ParallelGCSystemGC op(gc_count, full_gc_count, cause);
510 VMThread::execute(&op);
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