rev 59956 : 8247819: G1: Process strong OopStorage entries in parallel Reviewed-by: Contributed-by: Erik Osterlund <erik.osterlund@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Thomas Schatzl <thomas.schatzl@oracle.com>
1 /* 2 * Copyright (c) 2015, 2019, 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_GC_SHARED_WORKERDATAARRAY_INLINE_HPP 26 #define SHARE_GC_SHARED_WORKERDATAARRAY_INLINE_HPP 27 28 #include "gc/shared/workerDataArray.hpp" 29 #include "memory/allocation.inline.hpp" 30 #include "utilities/ostream.hpp" 31 32 template <typename T> 33 WorkerDataArray<T>::WorkerDataArray(const char* short_name, const char* title, uint length, bool is_serial) : 34 _data(NULL), 35 _length(length), 36 _short_name(short_name), 37 _title(title), 38 _is_serial(is_serial) { 39 assert(length > 0, "Must have some workers to store data for"); 40 assert(!is_serial || length == 1, "Serial phase must only have a single entry."); 41 _data = NEW_C_HEAP_ARRAY(T, _length, mtGC); 42 for (uint i = 0; i < MaxThreadWorkItems; i++) { 43 _thread_work_items[i] = NULL; 44 } 45 reset(); 46 } 47 48 template <typename T> 49 void WorkerDataArray<T>::set(uint worker_i, T value) { 50 assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length); 51 assert(_data[worker_i] == uninitialized(), "Overwriting data for worker %d in %s", worker_i, _title); 52 _data[worker_i] = value; 53 } 54 55 template <typename T> 56 T WorkerDataArray<T>::get(uint worker_i) const { 57 assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length); 58 return _data[worker_i]; 59 } 60 61 template <typename T> 62 WorkerDataArray<T>::~WorkerDataArray() { 63 for (uint i = 0; i < MaxThreadWorkItems; i++) { 64 delete _thread_work_items[i]; 65 } 66 FREE_C_HEAP_ARRAY(T, _data); 67 } 68 69 template <typename T> 70 void WorkerDataArray<T>::create_thread_work_items(const char* title, uint index, uint length_override) { 71 assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems); 72 assert(_thread_work_items[index] == NULL, "Tried to overwrite existing thread work item"); 73 uint length = length_override != 0 ? length_override : _length; 74 _thread_work_items[index] = new WorkerDataArray<size_t>(NULL, title, length); 75 } 76 77 template <typename T> 78 void WorkerDataArray<T>::set_thread_work_item(uint worker_i, size_t value, uint index) { 79 assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems); 80 assert(_thread_work_items[index] != NULL, "No sub count"); 81 _thread_work_items[index]->set(worker_i, value); 82 } 83 84 template <typename T> 85 void WorkerDataArray<T>::add_thread_work_item(uint worker_i, size_t value, uint index) { 86 assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems); 87 assert(_thread_work_items[index] != NULL, "No sub count"); 88 _thread_work_items[index]->add(worker_i, value); 89 } 90 91 template <typename T> 92 void WorkerDataArray<T>::set_or_add_thread_work_item(uint worker_i, size_t value, uint index) { 93 assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems); 94 assert(_thread_work_items[index] != NULL, "No sub count"); 95 if (_thread_work_items[index]->get(worker_i) == _thread_work_items[index]->uninitialized()) { 96 _thread_work_items[index]->set(worker_i, value); 97 } else { 98 _thread_work_items[index]->add(worker_i, value); 99 } 100 } 101 102 template <typename T> 103 size_t WorkerDataArray<T>::get_thread_work_item(uint worker_i, uint index) { 104 assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems); 105 assert(_thread_work_items[index] != NULL, "No sub count"); 106 return _thread_work_items[index]->get(worker_i); 107 } 108 109 template <typename T> 110 void WorkerDataArray<T>::add(uint worker_i, T value) { 111 assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length); 112 assert(_data[worker_i] != uninitialized(), "No data to add to %s for worker %d", _title, worker_i); 113 _data[worker_i] += value; 114 } 115 116 template <typename T> 117 double WorkerDataArray<T>::average() const { 118 uint contributing_threads = 0; 119 for (uint i = 0; i < _length; ++i) { 120 if (get(i) != uninitialized()) { 121 contributing_threads++; 122 } 123 } 124 if (contributing_threads == 0) { 125 return 0.0; 126 } 127 return sum() / (double) contributing_threads; 128 } 129 130 template <typename T> 131 T WorkerDataArray<T>::sum() const { 132 T s = 0; 133 for (uint i = 0; i < _length; ++i) { 134 if (get(i) != uninitialized()) { 135 s += get(i); 136 } 137 } 138 return s; 139 } 140 141 template <typename T> 142 void WorkerDataArray<T>::set_all(T value) { 143 for (uint i = 0; i < _length; i++) { 144 _data[i] = value; 145 } 146 } 147 148 template <class T> 149 void WorkerDataArray<T>::print_summary_on(outputStream* out, bool print_sum) const { 150 if (_is_serial) { 151 out->print("%s:", title()); 152 } else { 153 out->print("%-25s", title()); 154 } 155 156 uint start = 0; 157 while (start < _length && get(start) == uninitialized()) { 158 start++; 159 } 160 if (start < _length) { 161 if (_is_serial) { 162 WDAPrinter::summary(out, get(0)); 163 } else { 164 T min = get(start); 165 T max = min; 166 T sum = 0; 167 uint contributing_threads = 0; 168 for (uint i = start; i < _length; ++i) { 169 T value = get(i); 170 if (value != uninitialized()) { 171 max = MAX2(max, value); 172 min = MIN2(min, value); 173 sum += value; 174 contributing_threads++; 175 } 176 } 177 T diff = max - min; 178 assert(contributing_threads != 0, "Must be since we found a used value for the start index"); 179 double avg = sum / (double) contributing_threads; 180 WDAPrinter::summary(out, min, avg, max, diff, sum, print_sum); 181 out->print_cr(", Workers: %d", contributing_threads); 182 } 183 } else { 184 // No data for this phase. 185 out->print_cr(" skipped"); 186 } 187 } 188 189 template <class T> 190 void WorkerDataArray<T>::print_details_on(outputStream* out) const { 191 WDAPrinter::details(this, out); 192 } 193 194 template <typename T> 195 void WorkerDataArray<T>::reset() { 196 set_all(uninitialized()); 197 for (uint i = 0; i < MaxThreadWorkItems; i++) { 198 if (_thread_work_items[i] != NULL) { 199 _thread_work_items[i]->reset(); 200 } 201 } 202 } 203 204 #endif // SHARE_GC_SHARED_WORKERDATAARRAY_INLINE_HPP --- EOF ---