1 /*
2 * Copyright (c) 2015, 2016, 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 #ifndef SHARE_VM_GC_G1_WORKERDATAARRAY_INLINE_HPP
26 #define SHARE_VM_GC_G1_WORKERDATAARRAY_INLINE_HPP
27
28 #include "gc/g1/workerDataArray.hpp"
29 #include "memory/allocation.inline.hpp"
30 #include "utilities/ostream.hpp"
31
32 template <typename T>
33 WorkerDataArray<T>::WorkerDataArray(uint length, const char* title) :
34 _title(title),
35 _length(0) {
36 assert(length > 0, "Must have some workers to store data for");
37 _length = length;
38 _data = NEW_C_HEAP_ARRAY(T, _length, mtGC);
39 for (uint i = 0; i < MaxThreadWorkItems; i++) {
40 _thread_work_items[i] = NULL;
41 }
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 return _data[worker_i];
56 }
57
58 template <typename T>
59 WorkerDataArray<T>::~WorkerDataArray() {
60 FREE_C_HEAP_ARRAY(T, _data);
61 }
62
63 template <typename T>
64 void WorkerDataArray<T>::link_thread_work_items(WorkerDataArray<size_t>* thread_work_items, uint index) {
65 assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems);
66 _thread_work_items[index] = thread_work_items;
67 }
68
69 template <typename T>
70 void WorkerDataArray<T>::set_thread_work_item(uint worker_i, size_t value, uint index) {
71 assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems);
72 assert(_thread_work_items[index] != NULL, "No sub count");
73 _thread_work_items[index]->set(worker_i, value);
74 }
75
76 template <typename T>
77 void WorkerDataArray<T>::add_thread_work_item(uint worker_i, size_t value, uint index) {
78 assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems);
79 assert(_thread_work_items[index] != NULL, "No sub count");
80 _thread_work_items[index]->add(worker_i, value);
81 }
82
83 template <typename T>
84 void WorkerDataArray<T>::add(uint worker_i, T value) {
85 assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length);
86 assert(_data[worker_i] != uninitialized(), "No data to add to for worker %d", worker_i);
87 _data[worker_i] += value;
88 }
89
90 template <typename T>
91 double WorkerDataArray<T>::average() const {
92 uint contributing_threads = 0;
93 for (uint i = 0; i < _length; ++i) {
94 if (get(i) != uninitialized()) {
95 contributing_threads++;
96 }
97 }
98 if (contributing_threads == 0) {
99 return 0.0;
100 }
101 return sum() / (double) contributing_threads;
102 }
103
104 template <typename T>
105 T WorkerDataArray<T>::sum() const {
106 T s = 0;
107 for (uint i = 0; i < _length; ++i) {
108 if (get(i) != uninitialized()) {
109 s += get(i);
110 }
111 }
112 return s;
113 }
114
115 template <typename T>
116 void WorkerDataArray<T>::set_all(T value) {
117 for (uint i = 0; i < _length; i++) {
118 _data[i] = value;
119 }
120 }
121
122 template <class T>
123 void WorkerDataArray<T>::print_summary_on(outputStream* out, bool print_sum) const {
124 out->print("%-25s", title());
125 uint start = 0;
126 while (start < _length && get(start) == uninitialized()) {
127 start++;
128 }
129 if (start < _length) {
130 T min = get(start);
131 T max = min;
132 T sum = 0;
133 uint contributing_threads = 0;
134 for (uint i = start; i < _length; ++i) {
135 T value = get(i);
136 if (value != uninitialized()) {
137 max = MAX2(max, value);
138 min = MIN2(min, value);
139 sum += value;
140 contributing_threads++;
141 }
142 }
143 T diff = max - min;
144 assert(contributing_threads != 0, "Must be since we found a used value for the start index");
145 double avg = sum / (double) contributing_threads;
146 WDAPrinter::summary(out, min, avg, max, diff, sum, print_sum);
147 out->print_cr(", Workers: %d", contributing_threads);
148 } else {
149 // No data for this phase.
150 out->print_cr(" skipped");
151 }
152 }
153
154 template <class T>
155 void WorkerDataArray<T>::print_details_on(outputStream* out) const {
156 WDAPrinter::details(this, out);
157 }
158
159 template <typename T>
160 void WorkerDataArray<T>::reset() {
161 set_all(uninitialized());
162 for (uint i = 0; i < MaxThreadWorkItems; i++) {
163 if (_thread_work_items[i] != NULL) {
164 _thread_work_items[i]->reset();
165 }
166 }
167 }
168
169 #endif // SHARE_VM_GC_G1_WORKERDATAARRAY_INLINE_HPP