Mercurial > hg > truffle
annotate src/share/vm/runtime/aprofiler.cpp @ 7212:291ffc492eb6
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Fri, 14 Dec 2012 14:35:13 +0100 |
| parents | da91efe96a93 |
| children | 203f64878aab |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "gc_interface/collectedHeap.inline.hpp" | |
| 28 #include "memory/resourceArea.hpp" | |
| 29 #include "memory/space.hpp" | |
| 30 #include "oops/oop.inline.hpp" | |
| 31 #include "oops/oop.inline2.hpp" | |
| 32 #include "runtime/aprofiler.hpp" | |
| 0 | 33 |
| 34 | |
| 35 bool AllocationProfiler::_active = false; | |
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36 GrowableArray<Klass*>* AllocationProfiler::_print_array = NULL; |
| 0 | 37 |
| 38 | |
| 39 class AllocProfClosure : public ObjectClosure { | |
| 40 public: | |
| 41 void do_object(oop obj) { | |
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42 Klass* k = obj->klass(); |
| 0 | 43 k->set_alloc_count(k->alloc_count() + 1); |
| 44 k->set_alloc_size(k->alloc_size() + obj->size()); | |
| 45 } | |
| 46 }; | |
| 47 | |
| 48 | |
| 49 void AllocationProfiler::iterate_since_last_gc() { | |
| 50 if (is_active()) { | |
| 51 AllocProfClosure blk; | |
| 52 GenCollectedHeap* heap = GenCollectedHeap::heap(); | |
| 53 heap->object_iterate_since_last_GC(&blk); | |
| 54 } | |
| 55 } | |
| 56 | |
| 57 | |
| 58 void AllocationProfiler::engage() { | |
| 59 _active = true; | |
| 60 } | |
| 61 | |
| 62 | |
| 63 void AllocationProfiler::disengage() { | |
| 64 _active = false; | |
| 65 } | |
| 66 | |
| 67 | |
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68 void AllocationProfiler::add_class_to_array(Klass* k) { |
| 0 | 69 _print_array->append(k); |
| 70 } | |
| 71 | |
| 72 | |
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73 void AllocationProfiler::add_classes_to_array(Klass* k) { |
| 0 | 74 // Iterate over klass and all array klasses for klass |
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75 k->with_array_klasses_do(&AllocationProfiler::add_class_to_array); |
| 0 | 76 } |
| 77 | |
| 78 | |
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79 int AllocationProfiler::compare_classes(Klass** k1, Klass** k2) { |
| 0 | 80 // Sort by total allocation size |
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81 return (*k2)->alloc_size() - (*k1)->alloc_size(); |
| 0 | 82 } |
| 83 | |
| 84 | |
| 85 int AllocationProfiler::average(size_t alloc_size, int alloc_count) { | |
| 86 return (int) ((double) (alloc_size * BytesPerWord) / MAX2(alloc_count, 1) + 0.5); | |
| 87 } | |
| 88 | |
| 89 | |
| 90 void AllocationProfiler::sort_and_print_array(size_t cutoff) { | |
| 91 _print_array->sort(&AllocationProfiler::compare_classes); | |
| 92 tty->print_cr("________________Size" | |
| 93 "__Instances" | |
| 94 "__Average" | |
| 95 "__Class________________"); | |
| 96 size_t total_alloc_size = 0; | |
| 97 int total_alloc_count = 0; | |
| 98 for (int index = 0; index < _print_array->length(); index++) { | |
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99 Klass* k = _print_array->at(index); |
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100 size_t alloc_size = k->alloc_size(); |
| 0 | 101 if (alloc_size > cutoff) { |
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102 int alloc_count = k->alloc_count(); |
| 0 | 103 #ifdef PRODUCT |
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104 const char* name = k->external_name(); |
| 0 | 105 #else |
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106 const char* name = k->internal_name(); |
| 0 | 107 #endif |
| 108 tty->print_cr("%20u %10u %8u %s", | |
| 109 alloc_size * BytesPerWord, | |
| 110 alloc_count, | |
| 111 average(alloc_size, alloc_count), | |
| 112 name); | |
| 113 total_alloc_size += alloc_size; | |
| 114 total_alloc_count += alloc_count; | |
| 115 } | |
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116 k->set_alloc_count(0); |
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117 k->set_alloc_size(0); |
| 0 | 118 } |
| 119 tty->print_cr("%20u %10u %8u --total--", | |
| 120 total_alloc_size * BytesPerWord, | |
| 121 total_alloc_count, | |
| 122 average(total_alloc_size, total_alloc_count)); | |
| 123 tty->cr(); | |
| 124 } | |
| 125 | |
| 126 | |
| 127 void AllocationProfiler::print(size_t cutoff) { | |
| 128 ResourceMark rm; | |
| 129 assert(!is_active(), "AllocationProfiler cannot be active while printing profile"); | |
| 130 | |
| 131 tty->cr(); | |
| 132 tty->print_cr("Allocation profile (sizes in bytes, cutoff = %ld bytes):", cutoff * BytesPerWord); | |
| 133 tty->cr(); | |
| 134 | |
| 135 // Print regular instance klasses and basic type array klasses | |
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136 _print_array = new GrowableArray<Klass*>(SystemDictionary::number_of_classes()*2); |
| 0 | 137 SystemDictionary::classes_do(&add_classes_to_array); |
| 138 Universe::basic_type_classes_do(&add_classes_to_array); | |
| 139 sort_and_print_array(cutoff); | |
| 140 | |
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141 // This used to print metadata in the permgen but since there isn't a permgen |
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142 // anymore, it is not yet implemented. |
| 0 | 143 } |