Mercurial > hg > graal-compiler
annotate src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.cpp @ 1091:6aa7255741f3
6906727: UseCompressedOops: some card-marking fixes related to object arrays
Summary: Introduced a new write_ref_array(HeapWords* start, size_t count) method that does the requisite MemRegion range calculation so (some of the) clients of the erstwhile write_ref_array(MemRegion mr) do not need to worry. This removed all external uses of array_size(), which was also simplified and made private. Asserts were added to catch other possible issues. Further, less essential, fixes stemming from this investigation are deferred to CR 6904516 (to follow shortly in hs17).
Reviewed-by: kvn, coleenp, jmasa
| author | ysr |
|---|---|
| date | Thu, 03 Dec 2009 15:01:57 -0800 |
| parents | c0492d52d55b |
| children | c18cbe5936b8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * Copyright (c) 2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 # include "incls/_precompiled.incl" | |
| 26 # include "incls/_vmPSOperations.cpp.incl" | |
| 27 | |
| 28 // The following methods are used by the parallel scavenge collector | |
| 29 VM_ParallelGCFailedAllocation::VM_ParallelGCFailedAllocation(size_t size, | |
| 30 bool is_tlab, unsigned int gc_count) : | |
| 31 VM_GC_Operation(gc_count), | |
| 32 _size(size), | |
| 33 _is_tlab(is_tlab), | |
| 34 _result(NULL) | |
| 35 { | |
| 36 } | |
| 37 | |
| 38 void VM_ParallelGCFailedAllocation::doit() { | |
| 39 JvmtiGCForAllocationMarker jgcm; | |
| 40 notify_gc_begin(false); | |
| 41 | |
| 42 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); | |
| 43 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap"); | |
| 44 | |
| 45 GCCauseSetter gccs(heap, _gc_cause); | |
| 46 _result = heap->failed_mem_allocate(_size, _is_tlab); | |
| 47 | |
| 48 if (_result == NULL && GC_locker::is_active_and_needs_gc()) { | |
| 49 set_gc_locked(); | |
| 50 } | |
| 51 | |
| 52 notify_gc_end(); | |
| 53 } | |
| 54 | |
| 55 VM_ParallelGCFailedPermanentAllocation::VM_ParallelGCFailedPermanentAllocation(size_t size, | |
| 56 unsigned int gc_count, unsigned int full_gc_count) : | |
| 57 VM_GC_Operation(gc_count, full_gc_count, true /* full */), | |
| 58 _size(size), | |
| 59 _result(NULL) | |
| 60 { | |
| 61 } | |
| 62 | |
| 63 void VM_ParallelGCFailedPermanentAllocation::doit() { | |
| 64 JvmtiGCFullMarker jgcm; | |
| 65 notify_gc_begin(true); | |
| 66 | |
| 67 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); | |
| 68 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap"); | |
| 69 | |
| 70 GCCauseSetter gccs(heap, _gc_cause); | |
| 71 _result = heap->failed_permanent_mem_allocate(_size); | |
|
139
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
0
diff
changeset
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72 if (_result == NULL && GC_locker::is_active_and_needs_gc()) { |
|
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
0
diff
changeset
|
73 set_gc_locked(); |
|
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
0
diff
changeset
|
74 } |
| 0 | 75 notify_gc_end(); |
| 76 } | |
| 77 | |
| 78 // Only used for System.gc() calls | |
| 79 VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(unsigned int gc_count, | |
| 80 unsigned int full_gc_count, | |
| 81 GCCause::Cause gc_cause) : | |
| 82 VM_GC_Operation(gc_count, full_gc_count, true /* full */) | |
| 83 { | |
| 84 _gc_cause = gc_cause; | |
| 85 } | |
| 86 | |
| 87 void VM_ParallelGCSystemGC::doit() { | |
| 88 JvmtiGCFullMarker jgcm; | |
| 89 notify_gc_begin(true); | |
| 90 | |
| 91 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); | |
| 92 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, | |
| 93 "must be a ParallelScavengeHeap"); | |
| 94 | |
| 95 GCCauseSetter gccs(heap, _gc_cause); | |
| 96 if (_gc_cause == GCCause::_gc_locker | |
| 97 DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) { | |
| 98 // If (and only if) the scavenge fails, this will invoke a full gc. | |
| 99 heap->invoke_scavenge(); | |
| 100 } else { | |
| 101 heap->invoke_full_gc(false); | |
| 102 } | |
| 103 notify_gc_end(); | |
| 104 } |