1 /* 2 * Copyright (c) 2015, 2017, 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_SHARED_WORKERDATAARRAY_HPP 26 #define SHARE_VM_GC_SHARED_WORKERDATAARRAY_HPP 27 28 #include "memory/allocation.hpp" 29 #include "utilities/debug.hpp" 30 31 class outputStream; 32 33 template <class T> 34 class WorkerDataArray : public CHeapObj<mtGC> { 35 friend class WDAPrinter; 36 public: 37 static const uint MaxThreadWorkItems = 4; 38 private: 39 T* _data; 40 uint _length; 41 const char* _title; 42 43 WorkerDataArray<size_t>* _thread_work_items[MaxThreadWorkItems]; 44 45 public: 46 WorkerDataArray(uint length, const char* title); 47 ~WorkerDataArray(); 48 49 void link_thread_work_items(WorkerDataArray<size_t>* thread_work_items, uint index = 0); 50 void set_thread_work_item(uint worker_i, size_t value, uint index = 0); 51 void add_thread_work_item(uint worker_i, size_t value, uint index = 0); 52 WorkerDataArray<size_t>* thread_work_items(uint index = 0) const { 53 assert(index < MaxThreadWorkItems, "Tried to access thread work item %u max %u", index, MaxThreadWorkItems); 54 return _thread_work_items[index]; 55 } 56 57 static T uninitialized(); 58 59 void set(uint worker_i, T value); 60 T get(uint worker_i) const; 61 62 void add(uint worker_i, T value); 63 64 // The sum() and average() methods below consider uninitialized slots to be 0. 65 double average() const; 66 T sum() const; 67 68 const char* title() const { 69 return _title; 70 } 71 72 void reset(); 73 void set_all(T value); 74 75 76 private: 77 class WDAPrinter { 78 public: 79 static void summary(outputStream* out, double min, double avg, double max, double diff, double sum, bool print_sum); 80 static void summary(outputStream* out, size_t min, double avg, size_t max, size_t diff, size_t sum, bool print_sum); 81 82 static void details(const WorkerDataArray<double>* phase, outputStream* out); 83 static void details(const WorkerDataArray<size_t>* phase, outputStream* out); 84 }; 85 86 public: 87 void print_summary_on(outputStream* out, bool print_sum = true) const; 88 void print_details_on(outputStream* out) const; 89 }; 90 91 #endif // SHARE_VM_GC_SHARED_WORKERDATAARRAY_HPP