Mercurial > hg > graal-compiler
annotate src/share/vm/services/memRecorder.cpp @ 7971:4102b59539ce
8005012: Add WB APIs to better support NMT testing
Summary: Add WB API functions to enable better NMT testing
Reviewed-by: dholmes, zgu
| author | ctornqvi |
|---|---|
| date | Fri, 01 Feb 2013 23:48:08 +0100 |
| parents | ecd24264898b |
| children | 1f4355cee9a2 |
| rev | line source |
|---|---|
| 6197 | 1 /* |
| 2 * Copyright (c) 2012, 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 | |
| 27 #include "runtime/atomic.hpp" | |
| 28 #include "services/memBaseline.hpp" | |
| 29 #include "services/memRecorder.hpp" | |
| 30 #include "services/memPtr.hpp" | |
| 31 #include "services/memTracker.hpp" | |
| 32 | |
| 33 MemPointer* SequencedRecordIterator::next_record() { | |
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34 MemPointerRecord* itr_cur = (MemPointerRecord*)_itr.current(); |
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35 if (itr_cur == NULL) { |
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36 return itr_cur; |
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37 } |
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38 |
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39 MemPointerRecord* itr_next = (MemPointerRecord*)_itr.next(); |
| 6197 | 40 |
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41 // don't collapse virtual memory records |
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42 while (itr_next != NULL && !itr_cur->is_vm_pointer() && |
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43 !itr_next->is_vm_pointer() && |
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44 same_kind(itr_cur, itr_next)) { |
| 6197 | 45 itr_cur = itr_next; |
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46 itr_next = (MemPointerRecord*)_itr.next(); |
| 6197 | 47 } |
| 48 | |
| 49 return itr_cur; | |
| 50 } | |
| 51 | |
| 52 | |
| 6231 | 53 volatile jint MemRecorder::_instance_count = 0; |
| 6197 | 54 |
| 55 MemRecorder::MemRecorder() { | |
| 56 assert(MemTracker::is_on(), "Native memory tracking is off"); | |
| 6231 | 57 Atomic::inc(&_instance_count); |
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58 set_generation(); |
| 6197 | 59 |
| 60 if (MemTracker::track_callsite()) { | |
| 61 _pointer_records = new (std::nothrow)FixedSizeMemPointerArray<SeqMemPointerRecordEx, | |
| 62 DEFAULT_RECORDER_PTR_ARRAY_SIZE>(); | |
| 63 } else { | |
| 64 _pointer_records = new (std::nothrow)FixedSizeMemPointerArray<SeqMemPointerRecord, | |
| 65 DEFAULT_RECORDER_PTR_ARRAY_SIZE>(); | |
| 66 } | |
| 67 _next = NULL; | |
| 68 | |
| 69 | |
| 70 if (_pointer_records != NULL) { | |
| 71 // recode itself | |
| 72 record((address)this, (MemPointerRecord::malloc_tag()|mtNMT|otNMTRecorder), | |
| 73 sizeof(MemRecorder), CALLER_PC); | |
| 74 record((address)_pointer_records, (MemPointerRecord::malloc_tag()|mtNMT|otNMTRecorder), | |
| 75 _pointer_records->instance_size(),CURRENT_PC); | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 MemRecorder::~MemRecorder() { | |
| 80 if (_pointer_records != NULL) { | |
| 81 if (MemTracker::is_on()) { | |
| 82 MemTracker::record_free((address)_pointer_records, mtNMT); | |
| 83 MemTracker::record_free((address)this, mtNMT); | |
| 84 } | |
| 85 delete _pointer_records; | |
| 86 } | |
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87 // delete all linked recorders |
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88 while (_next != NULL) { |
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89 MemRecorder* tmp = _next; |
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90 _next = _next->next(); |
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91 tmp->set_next(NULL); |
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92 delete tmp; |
| 6197 | 93 } |
| 94 Atomic::dec(&_instance_count); | |
| 95 } | |
| 96 | |
| 97 // Sorting order: | |
| 98 // 1. memory block address | |
| 99 // 2. mem pointer record tags | |
| 100 // 3. sequence number | |
| 101 int MemRecorder::sort_record_fn(const void* e1, const void* e2) { | |
| 102 const MemPointerRecord* p1 = (const MemPointerRecord*)e1; | |
| 103 const MemPointerRecord* p2 = (const MemPointerRecord*)e2; | |
| 104 int delta = UNSIGNED_COMPARE(p1->addr(), p2->addr()); | |
| 105 if (delta == 0) { | |
| 106 int df = UNSIGNED_COMPARE((p1->flags() & MemPointerRecord::tag_masks), | |
| 107 (p2->flags() & MemPointerRecord::tag_masks)); | |
| 108 if (df == 0) { | |
| 109 assert(p1->seq() != p2->seq(), "dup seq"); | |
| 110 return p1->seq() - p2->seq(); | |
| 111 } else { | |
| 112 return df; | |
| 113 } | |
| 114 } else { | |
| 115 return delta; | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 bool MemRecorder::record(address p, MEMFLAGS flags, size_t size, address pc) { | |
| 120 #ifdef ASSERT | |
| 121 if (MemPointerRecord::is_virtual_memory_record(flags)) { | |
| 122 assert((flags & MemPointerRecord::tag_masks) != 0, "bad virtual memory record"); | |
| 123 } else { | |
| 124 assert((flags & MemPointerRecord::tag_masks) == MemPointerRecord::malloc_tag() || | |
| 125 (flags & MemPointerRecord::tag_masks) == MemPointerRecord::free_tag() || | |
| 126 IS_ARENA_OBJ(flags), | |
| 127 "bad malloc record"); | |
| 128 } | |
| 129 // a recorder should only hold records within the same generation | |
| 130 unsigned long cur_generation = SequenceGenerator::current_generation(); | |
| 131 assert(cur_generation == _generation, | |
| 132 "this thread did not enter sync point"); | |
| 133 #endif | |
| 134 | |
| 135 if (MemTracker::track_callsite()) { | |
| 136 SeqMemPointerRecordEx ap(p, flags, size, pc); | |
| 137 debug_only(check_dup_seq(ap.seq());) | |
| 138 return _pointer_records->append(&ap); | |
| 139 } else { | |
| 140 SeqMemPointerRecord ap(p, flags, size); | |
| 141 debug_only(check_dup_seq(ap.seq());) | |
| 142 return _pointer_records->append(&ap); | |
| 143 } | |
| 144 } | |
| 145 | |
| 146 // iterator for alloc pointers | |
| 147 SequencedRecordIterator MemRecorder::pointer_itr() { | |
| 148 assert(_pointer_records != NULL, "just check"); | |
| 149 _pointer_records->sort((FN_SORT)sort_record_fn); | |
| 150 return SequencedRecordIterator(_pointer_records); | |
| 151 } | |
| 152 | |
| 153 | |
| 154 void MemRecorder::set_generation() { | |
| 155 _generation = SequenceGenerator::current_generation(); | |
| 156 } | |
| 157 | |
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7971
4102b59539ce
8005012: Add WB APIs to better support NMT testing
ctornqvi
parents:
7464
diff
changeset
|
158 #ifdef ASSERT |
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8005012: Add WB APIs to better support NMT testing
ctornqvi
parents:
7464
diff
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159 |
| 6197 | 160 void MemRecorder::check_dup_seq(jint seq) const { |
| 161 MemPointerArrayIteratorImpl itr(_pointer_records); | |
| 162 MemPointerRecord* rc = (MemPointerRecord*)itr.current(); | |
| 163 while (rc != NULL) { | |
| 164 assert(rc->seq() != seq, "dup seq"); | |
| 165 rc = (MemPointerRecord*)itr.next(); | |
| 166 } | |
| 167 } | |
| 168 | |
| 169 #endif |