1 /*
2 * Copyright (c) 2001, 2013, 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/g1/concurrentMarkThread.inline.hpp"
27 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
28 #include "gc_implementation/g1/g1CollectorPolicy.hpp"
29 #include "gc_implementation/g1/g1Log.hpp"
30 #include "gc_implementation/g1/vm_operations_g1.hpp"
31 #include "gc_implementation/shared/gcTimer.hpp"
32 #include "gc_implementation/shared/gcTraceTime.hpp"
33 #include "gc_implementation/shared/isGCActiveMark.hpp"
34 #include "gc_implementation/g1/vm_operations_g1.hpp"
35 #include "runtime/interfaceSupport.hpp"
36
37 VM_G1CollectForAllocation::VM_G1CollectForAllocation(
38 unsigned int gc_count_before,
39 size_t word_size)
40 : VM_G1OperationWithAllocRequest(gc_count_before, word_size,
41 GCCause::_allocation_failure) {
42 guarantee(word_size > 0, "an allocation should always be requested");
43 }
44
45 void VM_G1CollectForAllocation::doit() {
46 G1CollectedHeap* g1h = G1CollectedHeap::heap();
47 GCCauseSetter x(g1h, _gc_cause);
48
49 _result = g1h->satisfy_failed_allocation(_word_size, allocation_context(), &_pause_succeeded);
50 assert(_result == NULL || _pause_succeeded,
51 "if we get back a result, the pause should have succeeded");
52 }
53
54 void VM_G1CollectFull::doit() {
55 G1CollectedHeap* g1h = G1CollectedHeap::heap();
56 GCCauseSetter x(g1h, _gc_cause);
57 g1h->do_full_collection(false /* clear_all_soft_refs */);
58 }
59
60 VM_G1IncCollectionPause::VM_G1IncCollectionPause(
61 unsigned int gc_count_before,
62 size_t word_size,
63 bool should_initiate_conc_mark,
64 double target_pause_time_ms,
65 GCCause::Cause gc_cause)
66 : VM_G1OperationWithAllocRequest(gc_count_before, word_size, gc_cause),
67 _should_initiate_conc_mark(should_initiate_conc_mark),
68 _target_pause_time_ms(target_pause_time_ms),
69 _should_retry_gc(false),
70 _old_marking_cycles_completed_before(0) {
71 guarantee(target_pause_time_ms > 0.0,
72 err_msg("target_pause_time_ms = %1.6lf should be positive",
73 target_pause_time_ms));
74 _gc_cause = gc_cause;
75 }
76
77 bool VM_G1IncCollectionPause::doit_prologue() {
78 bool res = VM_GC_Operation::doit_prologue();
79 if (!res) {
80 if (_should_initiate_conc_mark) {
81 // The prologue can fail for a couple of reasons. The first is that another GC
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1 /*
2 * Copyright (c) 2001, 2015, 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/g1/concurrentMarkThread.inline.hpp"
27 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
28 #include "gc_implementation/g1/g1CollectorPolicy.hpp"
29 #include "gc_implementation/g1/g1Log.hpp"
30 #include "gc_implementation/g1/vm_operations_g1.hpp"
31 #include "gc_implementation/shared/gcTimer.hpp"
32 #include "gc_implementation/shared/gcTraceTime.hpp"
33 #include "gc_implementation/shared/isGCActiveMark.hpp"
34 #include "gc_implementation/g1/vm_operations_g1.hpp"
35 #include "runtime/interfaceSupport.hpp"
36
37 VM_G1CollectForAllocation::VM_G1CollectForAllocation(uint gc_count_before,
38 size_t word_size)
39 : VM_G1OperationWithAllocRequest(gc_count_before, word_size,
40 GCCause::_allocation_failure) {
41 guarantee(word_size > 0, "an allocation should always be requested");
42 }
43
44 void VM_G1CollectForAllocation::doit() {
45 G1CollectedHeap* g1h = G1CollectedHeap::heap();
46 GCCauseSetter x(g1h, _gc_cause);
47
48 _result = g1h->satisfy_failed_allocation(_word_size, allocation_context(), &_pause_succeeded);
49 assert(_result == NULL || _pause_succeeded,
50 "if we get back a result, the pause should have succeeded");
51 }
52
53 void VM_G1CollectFull::doit() {
54 G1CollectedHeap* g1h = G1CollectedHeap::heap();
55 GCCauseSetter x(g1h, _gc_cause);
56 g1h->do_full_collection(false /* clear_all_soft_refs */);
57 }
58
59 VM_G1IncCollectionPause::VM_G1IncCollectionPause(uint gc_count_before,
60 size_t word_size,
61 bool should_initiate_conc_mark,
62 double target_pause_time_ms,
63 GCCause::Cause gc_cause)
64 : VM_G1OperationWithAllocRequest(gc_count_before, word_size, gc_cause),
65 _should_initiate_conc_mark(should_initiate_conc_mark),
66 _target_pause_time_ms(target_pause_time_ms),
67 _should_retry_gc(false),
68 _old_marking_cycles_completed_before(0) {
69 guarantee(target_pause_time_ms > 0.0,
70 err_msg("target_pause_time_ms = %1.6lf should be positive",
71 target_pause_time_ms));
72 _gc_cause = gc_cause;
73 }
74
75 bool VM_G1IncCollectionPause::doit_prologue() {
76 bool res = VM_GC_Operation::doit_prologue();
77 if (!res) {
78 if (_should_initiate_conc_mark) {
79 // The prologue can fail for a couple of reasons. The first is that another GC
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