24
25 #include "precompiled.hpp"
26 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp"
27 #include "gc_implementation/parallelScavenge/psMarkSweep.hpp"
28 #include "gc_implementation/parallelScavenge/psScavenge.hpp"
29 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
30 #include "gc_implementation/parallelScavenge/vmPSOperations.hpp"
31 #include "memory/gcLocker.inline.hpp"
32 #include "utilities/dtrace.hpp"
33
34 // The following methods are used by the parallel scavenge collector
35 VM_ParallelGCFailedAllocation::VM_ParallelGCFailedAllocation(size_t word_size,
36 uint gc_count) :
37 VM_CollectForAllocation(word_size, gc_count, GCCause::_allocation_failure) {
38 assert(word_size != 0, "An allocation should always be requested with this operation.");
39 }
40
41 void VM_ParallelGCFailedAllocation::doit() {
42 SvcGCMarker sgcm(SvcGCMarker::MINOR);
43
44 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
45 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap");
46
47 GCCauseSetter gccs(heap, _gc_cause);
48 _result = heap->failed_mem_allocate(_word_size);
49
50 if (_result == NULL && GC_locker::is_active_and_needs_gc()) {
51 set_gc_locked();
52 }
53 }
54
55 // Only used for System.gc() calls
56 VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(uint gc_count,
57 uint full_gc_count,
58 GCCause::Cause gc_cause) :
59 VM_GC_Operation(gc_count, gc_cause, full_gc_count, true /* full */)
60 {
61 }
62
63 void VM_ParallelGCSystemGC::doit() {
64 SvcGCMarker sgcm(SvcGCMarker::FULL);
65
66 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
67 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap,
68 "must be a ParallelScavengeHeap");
69
70 GCCauseSetter gccs(heap, _gc_cause);
71 if (_gc_cause == GCCause::_gc_locker || _gc_cause == GCCause::_wb_young_gc
72 DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) {
73 // If (and only if) the scavenge fails, this will invoke a full gc.
74 heap->invoke_scavenge();
75 } else {
76 heap->do_full_collection(false);
77 }
78 }
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24
25 #include "precompiled.hpp"
26 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp"
27 #include "gc_implementation/parallelScavenge/psMarkSweep.hpp"
28 #include "gc_implementation/parallelScavenge/psScavenge.hpp"
29 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
30 #include "gc_implementation/parallelScavenge/vmPSOperations.hpp"
31 #include "memory/gcLocker.inline.hpp"
32 #include "utilities/dtrace.hpp"
33
34 // The following methods are used by the parallel scavenge collector
35 VM_ParallelGCFailedAllocation::VM_ParallelGCFailedAllocation(size_t word_size,
36 uint gc_count) :
37 VM_CollectForAllocation(word_size, gc_count, GCCause::_allocation_failure) {
38 assert(word_size != 0, "An allocation should always be requested with this operation.");
39 }
40
41 void VM_ParallelGCFailedAllocation::doit() {
42 SvcGCMarker sgcm(SvcGCMarker::MINOR);
43
44 ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
45
46 GCCauseSetter gccs(heap, _gc_cause);
47 _result = heap->failed_mem_allocate(_word_size);
48
49 if (_result == NULL && GC_locker::is_active_and_needs_gc()) {
50 set_gc_locked();
51 }
52 }
53
54 // Only used for System.gc() calls
55 VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(uint gc_count,
56 uint full_gc_count,
57 GCCause::Cause gc_cause) :
58 VM_GC_Operation(gc_count, gc_cause, full_gc_count, true /* full */)
59 {
60 }
61
62 void VM_ParallelGCSystemGC::doit() {
63 SvcGCMarker sgcm(SvcGCMarker::FULL);
64
65 ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();
66
67 GCCauseSetter gccs(heap, _gc_cause);
68 if (_gc_cause == GCCause::_gc_locker || _gc_cause == GCCause::_wb_young_gc
69 DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) {
70 // If (and only if) the scavenge fails, this will invoke a full gc.
71 heap->invoke_scavenge();
72 } else {
73 heap->do_full_collection(false);
74 }
75 }
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