1 /* 2 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 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 size, 36 bool is_tlab, unsigned int gc_count) : 37 VM_GC_Operation(gc_count), 38 _size(size), 39 _is_tlab(is_tlab), 40 _result(NULL) 41 { 42 } 43 44 void VM_ParallelGCFailedAllocation::doit() { 45 JvmtiGCForAllocationMarker jgcm; 46 notify_gc_begin(false); 47 48 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); 49 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap"); 50 51 GCCauseSetter gccs(heap, _gc_cause); 52 _result = heap->failed_mem_allocate(_size, _is_tlab); 53 54 if (_result == NULL && GC_locker::is_active_and_needs_gc()) { 55 set_gc_locked(); 56 } 57 58 notify_gc_end(); 59 } 60 61 VM_ParallelGCFailedPermanentAllocation::VM_ParallelGCFailedPermanentAllocation(size_t size, 62 unsigned int gc_count, unsigned int full_gc_count) : 63 VM_GC_Operation(gc_count, full_gc_count, true /* full */), 64 _size(size), 65 _result(NULL) 66 { 67 } 68 69 void VM_ParallelGCFailedPermanentAllocation::doit() { 70 JvmtiGCFullMarker jgcm; 71 notify_gc_begin(true); 72 73 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); 74 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap"); 75 76 GCCauseSetter gccs(heap, _gc_cause); 77 _result = heap->failed_permanent_mem_allocate(_size); 78 if (_result == NULL && GC_locker::is_active_and_needs_gc()) { 79 set_gc_locked(); 80 } 81 notify_gc_end(); 82 } 83 84 // Only used for System.gc() calls 85 VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(unsigned int gc_count, 86 unsigned int full_gc_count, 87 GCCause::Cause gc_cause) : 88 VM_GC_Operation(gc_count, full_gc_count, true /* full */) 89 { 90 _gc_cause = gc_cause; 91 } 92 93 void VM_ParallelGCSystemGC::doit() { 94 JvmtiGCFullMarker jgcm; 95 notify_gc_begin(true); 96 97 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); 98 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, 99 "must be a ParallelScavengeHeap"); 100 101 GCCauseSetter gccs(heap, _gc_cause); 102 if (_gc_cause == GCCause::_gc_locker 103 DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) { 104 // If (and only if) the scavenge fails, this will invoke a full gc. 105 heap->invoke_scavenge(); 106 } else { 107 heap->invoke_full_gc(false); 108 } 109 notify_gc_end(); 110 }