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 int log_level,
33 uint indent_level) :
34 _title(title),
35 _length(0),
36 _print_sum(print_sum),
37 _log_level(log_level),
38 _indent_level(indent_level),
39 _thread_work_items(NULL),
40 _enabled(true) {
41 assert(length > 0, "Must have some workers to store data for");
42 _length = length;
43 _data = NEW_C_HEAP_ARRAY(T, _length, mtGC);
44 reset();
45 }
46
47 template <typename T>
48 void WorkerDataArray<T>::set(uint worker_i, T value) {
49 assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length);
50 assert(_data[worker_i] == uninitialized(), "Overwriting data for worker %d in %s", worker_i, _title);
51 _data[worker_i] = value;
52 }
53
54 template <typename T>
55 T WorkerDataArray<T>::get(uint worker_i) const {
56 assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length);
57 assert(_data[worker_i] != uninitialized(), "No data added for worker %d", worker_i);
58 return _data[worker_i];
59 }
60
61 template <typename T>
62 WorkerDataArray<T>::~WorkerDataArray() {
63 FREE_C_HEAP_ARRAY(T, _data);
64 }
65
66 template <typename T>
67 void WorkerDataArray<T>::link_thread_work_items(WorkerDataArray<size_t>* thread_work_items) {
68 _thread_work_items = thread_work_items;
69 }
70
71 template <typename T>
72 void WorkerDataArray<T>::set_thread_work_item(uint worker_i, size_t value) {
73 assert(_thread_work_items != NULL, "No sub count");
74 _thread_work_items->set(worker_i, value);
75 }
76
77 template <typename T>
78 void WorkerDataArray<T>::add(uint worker_i, T value) {
79 assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length);
80 assert(_data[worker_i] != uninitialized(), "No data to add to for worker %d", worker_i);
81 _data[worker_i] += value;
82 }
83
84 template <typename T>
85 double WorkerDataArray<T>::average(uint active_threads) const {
86 return sum(active_threads) / (double) active_threads;
87 }
88
89 template <typename T>
90 T WorkerDataArray<T>::sum(uint active_threads) const {
91 T s = get(0);
92 for (uint i = 1; i < active_threads; ++i) {
93 s += get(i);
94 }
95 return s;
96 }
97
98 template <typename T>
99 T WorkerDataArray<T>::minimum(uint active_threads) const {
100 T min = get(0);
101 for (uint i = 1; i < active_threads; ++i) {
102 min = MIN2(min, get(i));
103 }
104 return min;
105 }
106
107 template <typename T>
108 T WorkerDataArray<T>::maximum(uint active_threads) const {
109 T max = get(0);
110 for (uint i = 1; i < active_threads; ++i) {
111 max = MAX2(max, get(i));
112 }
113 return max;
114 }
115
116 template <typename T>
117 T WorkerDataArray<T>::diff(uint active_threads) const {
118 return maximum(active_threads) - minimum(active_threads);
119 }
120
121 template <typename T>
122 void WorkerDataArray<T>::clear() {
123 set_all(0);
124 }
125
126 template <typename T>
127 void WorkerDataArray<T>::set_all(T value) {
128 for (uint i = 0; i < _length; i++) {
129 _data[i] = value;
130 }
131 }
132
133 #ifndef PRODUCT
134 template <typename T>
135 void WorkerDataArray<T>::reset() {
136 set_all(uninitialized());
137 if (_thread_work_items != NULL) {
138 _thread_work_items->reset();
139 }
140 }
141
142 template <typename T>
143 void WorkerDataArray<T>::verify(uint active_threads) const {
144 if (!_enabled) {
145 return;
146 }
147
148 assert(active_threads <= _length, "Wrong number of active threads");
149 for (uint i = 0; i < active_threads; i++) {
150 assert(_data[i] != uninitialized(),
151 "Invalid data for worker %u in '%s'", i, _title);
152 }
153 if (_thread_work_items != NULL) {
154 _thread_work_items->verify(active_threads);
155 }
156 }
157
158 template <>
159 inline size_t WorkerDataArray<size_t>::uninitialized() const {
160 return (size_t)-1;
161 }
162
163 template <>
164 inline double WorkerDataArray<double>::uninitialized() const {
165 return -1.0;
166 }
167 #endif