1 /* 2 * Copyright (c) 2007, 2011, 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 _gc_cause = GCCause::_allocation_failure; 43 } 44 45 void VM_ParallelGCFailedAllocation::doit() { 46 SvcGCMarker sgcm(SvcGCMarker::MINOR); 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 59 VM_ParallelGCFailedPermanentAllocation::VM_ParallelGCFailedPermanentAllocation(size_t size, 60 unsigned int gc_count, unsigned int full_gc_count) : 61 VM_GC_Operation(gc_count, full_gc_count, true /* full */), 62 _size(size), 63 _result(NULL) 64 { 65 _gc_cause = GCCause::_allocation_failure; 66 } 67 68 void VM_ParallelGCFailedPermanentAllocation::doit() { 69 SvcGCMarker sgcm(SvcGCMarker::FULL); 70 71 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); 72 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap"); 73 74 GCCauseSetter gccs(heap, _gc_cause); 75 _result = heap->failed_permanent_mem_allocate(_size); 76 if (_result == NULL && GC_locker::is_active_and_needs_gc()) { 77 set_gc_locked(); 78 } 79 } 80 81 // Only used for System.gc() calls 82 VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(unsigned int gc_count, 83 unsigned int full_gc_count, 84 GCCause::Cause gc_cause) : 85 VM_GC_Operation(gc_count, full_gc_count, true /* full */) 86 { 87 _gc_cause = gc_cause; 88 } 89 90 void VM_ParallelGCSystemGC::doit() { 91 SvcGCMarker sgcm(SvcGCMarker::FULL); 92 93 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); 94 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, 95 "must be a ParallelScavengeHeap"); 96 97 GCCauseSetter gccs(heap, _gc_cause); 98 if (_gc_cause == GCCause::_gc_locker 99 DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) { 100 // If (and only if) the scavenge fails, this will invoke a full gc. 101 heap->invoke_scavenge(); 102 } else { 103 heap->invoke_full_gc(false); 104 } 105 }