1 /*
2 * Copyright (c) 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 "gc/g1/workerDataArray.hpp"
26 #include "memory/allocation.inline.hpp"
27
28 template <typename T>
29 WorkerDataArray<T>::WorkerDataArray(uint length,
30 const char* title,
31 bool print_sum,
32 uint indent_level) :
33 _title(title),
34 _length(0),
35 _print_sum(print_sum),
36 _indent_level(indent_level),
37 _thread_work_items(NULL),
38 _enabled(true) {
39 assert(length > 0, "Must have some workers to store data for");
40 _length = length;
41 _data = NEW_C_HEAP_ARRAY(T, _length, mtGC);
42 reset();
43 }
44
45 template <typename T>
46 void WorkerDataArray<T>::set(uint worker_i, T value) {
47 assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length);
48 assert(_data[worker_i] == uninitialized(), "Overwriting data for worker %d in %s", worker_i, _title);
49 _data[worker_i] = value;
50 }
51
52 template <typename T>
53 T WorkerDataArray<T>::get(uint worker_i) const {
54 assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length);
55 assert(_data[worker_i] != uninitialized(), "No data added for worker %d", worker_i);
56 return _data[worker_i];
57 }
58
59 template <typename T>
60 WorkerDataArray<T>::~WorkerDataArray() {
61 FREE_C_HEAP_ARRAY(T, _data);
62 }
63
64 template <typename T>
65 void WorkerDataArray<T>::link_thread_work_items(WorkerDataArray<size_t>* thread_work_items) {
66 _thread_work_items = thread_work_items;
67 }
68
69 template <typename T>
70 void WorkerDataArray<T>::set_thread_work_item(uint worker_i, size_t value) {
71 assert(_thread_work_items != NULL, "No sub count");
72 _thread_work_items->set(worker_i, value);
73 }
74
75 template <typename T>
76 void WorkerDataArray<T>::add(uint worker_i, T value) {
77 assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length);
78 assert(_data[worker_i] != uninitialized(), "No data to add to for worker %d", worker_i);
79 _data[worker_i] += value;
80 }
81
82 template <typename T>
83 double WorkerDataArray<T>::average(uint active_threads) const {
84 return sum(active_threads) / (double) active_threads;
85 }
86
87 template <typename T>
88 T WorkerDataArray<T>::sum(uint active_threads) const {
89 T s = get(0);
90 for (uint i = 1; i < active_threads; ++i) {
91 s += get(i);
92 }
93 return s;
94 }
95
96 template <typename T>
97 T WorkerDataArray<T>::minimum(uint active_threads) const {
98 T min = get(0);
99 for (uint i = 1; i < active_threads; ++i) {
100 min = MIN2(min, get(i));
101 }
102 return min;
103 }
104
105 template <typename T>
106 T WorkerDataArray<T>::maximum(uint active_threads) const {
107 T max = get(0);
108 for (uint i = 1; i < active_threads; ++i) {
109 max = MAX2(max, get(i));
110 }
111 return max;
112 }
113
114 template <typename T>
115 T WorkerDataArray<T>::diff(uint active_threads) const {
116 return maximum(active_threads) - minimum(active_threads);
117 }
118
119 template <typename T>
120 void WorkerDataArray<T>::clear() {
121 set_all(0);
122 }
123
124 template <typename T>
125 void WorkerDataArray<T>::set_all(T value) {
126 for (uint i = 0; i < _length; i++) {
127 _data[i] = value;
128 }
129 }
130
131 #ifndef PRODUCT
132 template <typename T>
133 void WorkerDataArray<T>::reset() {
134 set_all(uninitialized());
135 if (_thread_work_items != NULL) {
136 _thread_work_items->reset();
137 }
138 }
139
140 template <typename T>
141 void WorkerDataArray<T>::verify(uint active_threads) const {
142 if (!_enabled) {
143 return;
144 }
145
146 assert(active_threads <= _length, "Wrong number of active threads");
147 for (uint i = 0; i < active_threads; i++) {
148 assert(_data[i] != uninitialized(),
149 "Invalid data for worker %u in '%s'", i, _title);
150 }
151 if (_thread_work_items != NULL) {
152 _thread_work_items->verify(active_threads);
153 }
154 }
155
156 template <>
157 inline size_t WorkerDataArray<size_t>::uninitialized() const {
158 return (size_t)-1;
159 }
160
161 template <>
162 inline double WorkerDataArray<double>::uninitialized() const {
163 return -1.0;
164 }
165 #endif