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_HPP 26 #define SHARE_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 = 6; 38 private: 39 T* _data; 40 uint _length; 41 const char* _short_name; // Short name for JFR 42 const char* _title; // Title for logging. 43 44 bool _is_serial; 45 46 WorkerDataArray<size_t>* _thread_work_items[MaxThreadWorkItems]; 47 48 public: 49 WorkerDataArray(const char* short_name, const char* title, uint length, bool is_serial = false); 50 ~WorkerDataArray(); 51 52 // Create an integer sub-item at the given index to this WorkerDataArray. If length_override 53 // is zero, use the same number of elements as this array, otherwise use the given 54 // number. 55 void create_thread_work_items(const char* title, uint index = 0, uint length_override = 0); 56 57 void set_thread_work_item(uint worker_i, size_t value, uint index = 0); 58 void add_thread_work_item(uint worker_i, size_t value, uint index = 0); 59 void set_or_add_thread_work_item(uint worker_i, size_t value, uint index = 0); 60 size_t get_thread_work_item(uint worker_i, uint index = 0); 61 62 WorkerDataArray<size_t>* thread_work_items(uint index = 0) const { 63 assert(index < MaxThreadWorkItems, "Tried to access thread work item %u max %u", index, MaxThreadWorkItems); 64 return _thread_work_items[index]; 65 } 66 67 static T uninitialized(); 68 69 void set(uint worker_i, T value); 70 T get(uint worker_i) const; 71 72 void add(uint worker_i, T value); 73 74 // The sum() and average() methods below consider uninitialized slots to be 0. 75 double average() const; 76 T sum() const; 77 78 const char* title() const { 79 return _title; 80 } 81 82 const char* short_name() const { 83 return _short_name; 84 } 85 86 void reset(); 87 void set_all(T value); 88 89 90 private: 91 class WDAPrinter { 92 public: 93 static void summary(outputStream* out, double time); 94 static void summary(outputStream* out, double min, double avg, double max, double diff, double sum, bool print_sum); 95 static void summary(outputStream* out, size_t value); 96 static void summary(outputStream* out, size_t min, double avg, size_t max, size_t diff, size_t sum, bool print_sum); 97 98 static void details(const WorkerDataArray<double>* phase, outputStream* out); 99 static void details(const WorkerDataArray<size_t>* phase, outputStream* out); 100 }; 101 102 public: 103 void print_summary_on(outputStream* out, bool print_sum = true) const; 104 void print_details_on(outputStream* out) const; 105 }; 106 107 #endif // SHARE_GC_SHARED_WORKERDATAARRAY_HPP --- EOF ---