rev 57241 : imported patch 8235346-redo-memory-leak
rev 57242 : imported patch 8235341-workerdataarray-cleanup
rev 57243 : [mq]: 8235341-stefanj-review

   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(uint length, const char* title, bool is_serial) :
  34  _data(NULL),
  35  _length(length),
  36  _title(title),
  37  _is_serial(is_serial) {
  38   assert(length > 0, "Must have some workers to store data for");
  39   assert(!is_serial || length == 1, "Serial phase must only have a single entry.");
  40   _data = NEW_C_HEAP_ARRAY(T, _length, mtGC);
  41   for (uint i = 0; i < MaxThreadWorkItems; i++) {
  42     _thread_work_items[i] = NULL;
  43   }
  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   return _data[worker_i];
  58 }
  59 
  60 template <typename T>
  61 WorkerDataArray<T>::~WorkerDataArray() {
  62   for (uint i = 0; i < MaxThreadWorkItems; i++) {
  63     delete _thread_work_items[i];
  64   }
  65   FREE_C_HEAP_ARRAY(T, _data);
  66 }
  67 
  68 template <typename T>
  69 void WorkerDataArray<T>::link_thread_work_items(WorkerDataArray<size_t>* thread_work_items, uint index) {
  70   assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems);
  71   _thread_work_items[index] = thread_work_items;


  72 }
  73 
  74 template <typename T>
  75 void WorkerDataArray<T>::set_thread_work_item(uint worker_i, size_t value, uint index) {
  76   assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems);
  77   assert(_thread_work_items[index] != NULL, "No sub count");
  78   _thread_work_items[index]->set(worker_i, value);
  79 }
  80 
  81 template <typename T>
  82 void WorkerDataArray<T>::add_thread_work_item(uint worker_i, size_t value, uint index) {
  83   assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems);
  84   assert(_thread_work_items[index] != NULL, "No sub count");
  85   _thread_work_items[index]->add(worker_i, value);
  86 }
  87 
  88 template <typename T>
  89 void WorkerDataArray<T>::set_or_add_thread_work_item(uint worker_i, size_t value, uint index) {
  90   assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems);
  91   assert(_thread_work_items[index] != NULL, "No sub count");
  92   if (_thread_work_items[index]->get(worker_i) == _thread_work_items[index]->uninitialized()) {
  93     _thread_work_items[index]->set(worker_i, value);
  94   } else {
  95     _thread_work_items[index]->add(worker_i, value);
  96   }
  97 }
  98 
  99 template <typename T>
 100 size_t WorkerDataArray<T>::get_thread_work_item(uint worker_i, uint index) {
 101   assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems);
 102   assert(_thread_work_items[index] != NULL, "No sub count");
 103   return _thread_work_items[index]->get(worker_i);
 104 }
 105 
 106 template <typename T>
 107 void WorkerDataArray<T>::add(uint worker_i, T value) {
 108   assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length);
 109   assert(_data[worker_i] != uninitialized(), "No data to add to %s for worker %d", _title, worker_i);
 110   _data[worker_i] += value;
 111 }
 112 
 113 template <typename T>
 114 double WorkerDataArray<T>::average() const {
 115   uint contributing_threads = 0;
 116   for (uint i = 0; i < _length; ++i) {
 117     if (get(i) != uninitialized()) {
 118       contributing_threads++;
 119     }
 120   }
 121   if (contributing_threads == 0) {
 122     return 0.0;
 123   }
 124   return sum() / (double) contributing_threads;
 125 }
 126 
 127 template <typename T>
 128 T WorkerDataArray<T>::sum() const {
 129   T s = 0;
 130   for (uint i = 0; i < _length; ++i) {
 131     if (get(i) != uninitialized()) {
 132       s += get(i);
 133     }
 134   }
 135   return s;
 136 }
 137 
 138 template <typename T>
 139 void WorkerDataArray<T>::set_all(T value) {
 140   for (uint i = 0; i < _length; i++) {
 141     _data[i] = value;
 142   }
 143 }
 144 
 145 template <class T>
 146 void WorkerDataArray<T>::print_summary_on(outputStream* out, bool print_sum) const {
 147   if (_is_serial) {
 148     out->print("%s:", title());
 149   } else {
 150     out->print("%-25s", title());
 151   }
 152 
 153   uint start = 0;
 154   while (start < _length && get(start) == uninitialized()) {
 155     start++;
 156   }
 157   if (start < _length) {
 158     if (_is_serial) {
 159       WDAPrinter::summary(out, get(0));
 160     } else {
 161       T min = get(start);
 162       T max = min;
 163       T sum = 0;
 164       uint contributing_threads = 0;
 165       for (uint i = start; i < _length; ++i) {
 166         T value = get(i);
 167         if (value != uninitialized()) {
 168           max = MAX2(max, value);
 169           min = MIN2(min, value);
 170           sum += value;
 171           contributing_threads++;
 172         }
 173       }
 174       T diff = max - min;
 175       assert(contributing_threads != 0, "Must be since we found a used value for the start index");
 176       double avg = sum / (double) contributing_threads;
 177       WDAPrinter::summary(out, min, avg, max, diff, sum, print_sum);
 178       out->print_cr(", Workers: %d", contributing_threads);
 179     }
 180   } else {
 181     // No data for this phase.
 182     out->print_cr(" skipped");
 183   }
 184 }
 185 
 186 template <class T>
 187 void WorkerDataArray<T>::print_details_on(outputStream* out) const {
 188   WDAPrinter::details(this, out);
 189 }
 190 
 191 template <typename T>
 192 void WorkerDataArray<T>::reset() {
 193   set_all(uninitialized());
 194   for (uint i = 0; i < MaxThreadWorkItems; i++) {
 195     if (_thread_work_items[i] != NULL) {
 196       _thread_work_items[i]->reset();
 197     }
 198   }
 199 }
 200 
 201 #endif // SHARE_GC_SHARED_WORKERDATAARRAY_INLINE_HPP
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