Mon, 10 Jan 2011 17:14:53 -0500
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
Summary: Make JvmtiGCMark safe to run non-safepoint and instrument CMS
Reviewed-by: ysr, dcubed
duke@435 | 1 | /* |
stefank@2314 | 2 | * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp" |
stefank@2314 | 27 | #include "gc_implementation/parallelScavenge/psMarkSweep.hpp" |
stefank@2314 | 28 | #include "gc_implementation/parallelScavenge/psScavenge.hpp" |
stefank@2314 | 29 | #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" |
stefank@2314 | 30 | #include "gc_implementation/parallelScavenge/vmPSOperations.hpp" |
stefank@2314 | 31 | #include "memory/gcLocker.inline.hpp" |
stefank@2314 | 32 | #include "utilities/dtrace.hpp" |
duke@435 | 33 | |
duke@435 | 34 | // The following methods are used by the parallel scavenge collector |
duke@435 | 35 | VM_ParallelGCFailedAllocation::VM_ParallelGCFailedAllocation(size_t size, |
duke@435 | 36 | bool is_tlab, unsigned int gc_count) : |
duke@435 | 37 | VM_GC_Operation(gc_count), |
duke@435 | 38 | _size(size), |
duke@435 | 39 | _is_tlab(is_tlab), |
duke@435 | 40 | _result(NULL) |
duke@435 | 41 | { |
duke@435 | 42 | } |
duke@435 | 43 | |
duke@435 | 44 | void VM_ParallelGCFailedAllocation::doit() { |
kamg@2445 | 45 | SvcGCMarker sgcm(SvcGCMarker::MINOR); |
duke@435 | 46 | |
duke@435 | 47 | ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); |
duke@435 | 48 | assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap"); |
duke@435 | 49 | |
duke@435 | 50 | GCCauseSetter gccs(heap, _gc_cause); |
duke@435 | 51 | _result = heap->failed_mem_allocate(_size, _is_tlab); |
duke@435 | 52 | |
duke@435 | 53 | if (_result == NULL && GC_locker::is_active_and_needs_gc()) { |
duke@435 | 54 | set_gc_locked(); |
duke@435 | 55 | } |
duke@435 | 56 | } |
duke@435 | 57 | |
duke@435 | 58 | VM_ParallelGCFailedPermanentAllocation::VM_ParallelGCFailedPermanentAllocation(size_t size, |
duke@435 | 59 | unsigned int gc_count, unsigned int full_gc_count) : |
duke@435 | 60 | VM_GC_Operation(gc_count, full_gc_count, true /* full */), |
duke@435 | 61 | _size(size), |
duke@435 | 62 | _result(NULL) |
duke@435 | 63 | { |
duke@435 | 64 | } |
duke@435 | 65 | |
duke@435 | 66 | void VM_ParallelGCFailedPermanentAllocation::doit() { |
kamg@2445 | 67 | SvcGCMarker sgcm(SvcGCMarker::FULL); |
duke@435 | 68 | |
duke@435 | 69 | ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); |
duke@435 | 70 | assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap"); |
duke@435 | 71 | |
duke@435 | 72 | GCCauseSetter gccs(heap, _gc_cause); |
duke@435 | 73 | _result = heap->failed_permanent_mem_allocate(_size); |
apetrusenko@574 | 74 | if (_result == NULL && GC_locker::is_active_and_needs_gc()) { |
apetrusenko@574 | 75 | set_gc_locked(); |
apetrusenko@574 | 76 | } |
duke@435 | 77 | } |
duke@435 | 78 | |
duke@435 | 79 | // Only used for System.gc() calls |
duke@435 | 80 | VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(unsigned int gc_count, |
duke@435 | 81 | unsigned int full_gc_count, |
duke@435 | 82 | GCCause::Cause gc_cause) : |
duke@435 | 83 | VM_GC_Operation(gc_count, full_gc_count, true /* full */) |
duke@435 | 84 | { |
duke@435 | 85 | _gc_cause = gc_cause; |
duke@435 | 86 | } |
duke@435 | 87 | |
duke@435 | 88 | void VM_ParallelGCSystemGC::doit() { |
kamg@2445 | 89 | SvcGCMarker sgcm(SvcGCMarker::FULL); |
duke@435 | 90 | |
duke@435 | 91 | ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); |
duke@435 | 92 | assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, |
duke@435 | 93 | "must be a ParallelScavengeHeap"); |
duke@435 | 94 | |
duke@435 | 95 | GCCauseSetter gccs(heap, _gc_cause); |
duke@435 | 96 | if (_gc_cause == GCCause::_gc_locker |
duke@435 | 97 | DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) { |
duke@435 | 98 | // If (and only if) the scavenge fails, this will invoke a full gc. |
duke@435 | 99 | heap->invoke_scavenge(); |
duke@435 | 100 | } else { |
duke@435 | 101 | heap->invoke_full_gc(false); |
duke@435 | 102 | } |
duke@435 | 103 | } |