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src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp

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rev 8068 : imported patch parallelscavenge_cleanup

*** 57,67 **** elapsedTimer PSMarkSweep::_accumulated_time; jlong PSMarkSweep::_time_of_last_gc = 0; CollectorCounters* PSMarkSweep::_counters = NULL; void PSMarkSweep::initialize() { ! MemRegion mr = Universe::heap()->reserved_region(); _ref_processor = new ReferenceProcessor(mr); // a vanilla ref proc _counters = new CollectorCounters("PSMarkSweep", 1); } // This method contains all heap specific policy for invoking mark sweep. --- 57,67 ---- elapsedTimer PSMarkSweep::_accumulated_time; jlong PSMarkSweep::_time_of_last_gc = 0; CollectorCounters* PSMarkSweep::_counters = NULL; void PSMarkSweep::initialize() { ! MemRegion mr = ParallelScavengeHeap::heap()->reserved_region(); _ref_processor = new ReferenceProcessor(mr); // a vanilla ref proc _counters = new CollectorCounters("PSMarkSweep", 1); } // This method contains all heap specific policy for invoking mark sweep.
*** 79,91 **** // are being taken to free space. void PSMarkSweep::invoke(bool maximum_heap_compaction) { assert(SafepointSynchronize::is_at_safepoint(), "should be at safepoint"); assert(Thread::current() == (Thread*)VMThread::vm_thread(), "should be in vm thread"); ! assert(!Universe::heap()->is_gc_active(), "not reentrant"); ! ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); GCCause::Cause gc_cause = heap->gc_cause(); PSAdaptiveSizePolicy* policy = heap->size_policy(); IsGCActiveMark mark; if (ScavengeBeforeFullGC) { --- 79,91 ---- // are being taken to free space. void PSMarkSweep::invoke(bool maximum_heap_compaction) { assert(SafepointSynchronize::is_at_safepoint(), "should be at safepoint"); assert(Thread::current() == (Thread*)VMThread::vm_thread(), "should be in vm thread"); ! assert(!ParallelScavengeHeap::heap()->is_gc_active(), "not reentrant"); ! ParallelScavengeHeap* heap = ParallelScavengeHeap::heap(); GCCause::Cause gc_cause = heap->gc_cause(); PSAdaptiveSizePolicy* policy = heap->size_policy(); IsGCActiveMark mark; if (ScavengeBeforeFullGC) {
*** 108,119 **** if (GC_locker::check_active_before_gc()) { return false; } ! ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); ! assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity"); GCCause::Cause gc_cause = heap->gc_cause(); _gc_timer->register_gc_start(); _gc_tracer->report_gc_start(gc_cause, _gc_timer->gc_start()); --- 108,118 ---- if (GC_locker::check_active_before_gc()) { return false; } ! ParallelScavengeHeap* heap = ParallelScavengeHeap::heap(); GCCause::Cause gc_cause = heap->gc_cause(); _gc_timer->register_gc_start(); _gc_tracer->report_gc_start(gc_cause, _gc_timer->gc_start());
*** 485,497 **** size_policy->set_bytes_absorbed_from_eden(absorb_size); return true; } void PSMarkSweep::allocate_stacks() { ! ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); ! assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity"); ! PSYoungGen* young_gen = heap->young_gen(); MutableSpace* to_space = young_gen->to_space(); _preserved_marks = (PreservedMark*)to_space->top(); _preserved_count = 0; --- 484,494 ---- size_policy->set_bytes_absorbed_from_eden(absorb_size); return true; } void PSMarkSweep::allocate_stacks() { ! ParallelScavengeHeap* heap = ParallelScavengeHeap::heap(); PSYoungGen* young_gen = heap->young_gen(); MutableSpace* to_space = young_gen->to_space(); _preserved_marks = (PreservedMark*)to_space->top(); _preserved_count = 0;
*** 513,524 **** void PSMarkSweep::mark_sweep_phase1(bool clear_all_softrefs) { // Recursively traverse all live objects and mark them GCTraceTime tm("phase 1", PrintGCDetails && Verbose, true, _gc_timer, _gc_tracer->gc_id()); trace(" 1"); ! ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); ! assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity"); // Need to clear claim bits before the tracing starts. ClassLoaderDataGraph::clear_claimed_marks(); // General strong roots. --- 510,520 ---- void PSMarkSweep::mark_sweep_phase1(bool clear_all_softrefs) { // Recursively traverse all live objects and mark them GCTraceTime tm("phase 1", PrintGCDetails && Verbose, true, _gc_timer, _gc_tracer->gc_id()); trace(" 1"); ! ParallelScavengeHeap* heap = ParallelScavengeHeap::heap(); // Need to clear claim bits before the tracing starts. ClassLoaderDataGraph::clear_claimed_marks(); // General strong roots.
*** 580,592 **** // It is not required that we traverse spaces in the same order in // phase2, phase3 and phase4, but the ValidateMarkSweep live oops // tracking expects us to do so. See comment under phase4. ! ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); ! assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity"); ! PSOldGen* old_gen = heap->old_gen(); // Begin compacting into the old gen PSMarkSweepDecorator::set_destination_decorator_tenured(); --- 576,586 ---- // It is not required that we traverse spaces in the same order in // phase2, phase3 and phase4, but the ValidateMarkSweep live oops // tracking expects us to do so. See comment under phase4. ! ParallelScavengeHeap* heap = ParallelScavengeHeap::heap(); PSOldGen* old_gen = heap->old_gen(); // Begin compacting into the old gen PSMarkSweepDecorator::set_destination_decorator_tenured();
*** 604,616 **** void PSMarkSweep::mark_sweep_phase3() { // Adjust the pointers to reflect the new locations GCTraceTime tm("phase 3", PrintGCDetails && Verbose, true, _gc_timer, _gc_tracer->gc_id()); trace("3"); ! ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); ! assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity"); ! PSYoungGen* young_gen = heap->young_gen(); PSOldGen* old_gen = heap->old_gen(); // Need to clear claim bits before the tracing starts. ClassLoaderDataGraph::clear_claimed_marks(); --- 598,608 ---- void PSMarkSweep::mark_sweep_phase3() { // Adjust the pointers to reflect the new locations GCTraceTime tm("phase 3", PrintGCDetails && Verbose, true, _gc_timer, _gc_tracer->gc_id()); trace("3"); ! ParallelScavengeHeap* heap = ParallelScavengeHeap::heap(); PSYoungGen* young_gen = heap->young_gen(); PSOldGen* old_gen = heap->old_gen(); // Need to clear claim bits before the tracing starts. ClassLoaderDataGraph::clear_claimed_marks();
*** 649,661 **** GCTraceTime tm("phase 4", PrintGCDetails && Verbose, true, _gc_timer, _gc_tracer->gc_id()); trace("4"); // All pointers are now adjusted, move objects accordingly ! ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); ! assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity"); ! PSYoungGen* young_gen = heap->young_gen(); PSOldGen* old_gen = heap->old_gen(); old_gen->compact(); young_gen->compact(); --- 641,651 ---- GCTraceTime tm("phase 4", PrintGCDetails && Verbose, true, _gc_timer, _gc_tracer->gc_id()); trace("4"); // All pointers are now adjusted, move objects accordingly ! ParallelScavengeHeap* heap = ParallelScavengeHeap::heap(); PSYoungGen* young_gen = heap->young_gen(); PSOldGen* old_gen = heap->old_gen(); old_gen->compact(); young_gen->compact();
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