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(uint worker_i, T value) {
78 assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length);
79 assert(_data[worker_i] != uninitialized(), "No data to add to for worker %d", worker_i);
80 _data[worker_i] += value;
81 }
82
83 template <typename T>
84 double WorkerDataArray<T>::average() const {
85 uint contributing_threads = 0;
86 for (uint i = 0; i < _length; ++i) {
87 if (get(i) != uninitialized()) {
88 contributing_threads++;
89 }
90 }
91 if (contributing_threads == 0) {
92 return 0.0;
93 }
94 return sum() / (double) contributing_threads;
95 }
96
97 template <typename T>
98 T WorkerDataArray<T>::sum() const {
99 T s = 0;
100 for (uint i = 0; i < _length; ++i) {
101 if (get(i) != uninitialized()) {
102 s += get(i);
103 }
104 }
105 return s;
106 }
107
108 template <typename T>
109 void WorkerDataArray<T>::set_all(T value) {
110 for (uint i = 0; i < _length; i++) {
111 _data[i] = value;
112 }
113 }
114
115 template <class T>
116 void WorkerDataArray<T>::print_summary_on(outputStream* out, bool print_sum) const {
117 out->print("%-25s", title());
118 uint start = 0;
119 while (start < _length && get(start) == uninitialized()) {
120 start++;
121 }
122 if (start < _length) {
123 T min = get(start);
124 T max = min;
125 T sum = 0;
126 uint contributing_threads = 0;
127 for (uint i = start; i < _length; ++i) {
128 T value = get(i);
129 if (value != uninitialized()) {
130 max = MAX2(max, value);
131 min = MIN2(min, value);
132 sum += value;
133 contributing_threads++;
134 }
135 }
136 T diff = max - min;
137 assert(contributing_threads != 0, "Must be since we found a used value for the start index");
138 double avg = sum / (double) contributing_threads;
139 WDAPrinter::summary(out, min, avg, max, diff, sum, print_sum);
140 out->print_cr(", Workers: %d", contributing_threads);
141 } else {
142 // No data for this phase.
143 out->print_cr(" skipped");
144 }
145 }
146
147 template <class T>
148 void WorkerDataArray<T>::print_details_on(outputStream* out) const {
149 WDAPrinter::details(this, out);
150 }
151
152 template <typename T>
153 void WorkerDataArray<T>::reset() {
154 set_all(uninitialized());
155 for (uint i = 0; i < MaxThreadWorkItems; i++) {
156 if (_thread_work_items[i] != NULL) {
157 _thread_work_items[i]->reset();
158 }
159 }
160 }
161
162 #endif // SHARE_VM_GC_G1_WORKERDATAARRAY_INLINE_HPP