1 /* 2 * Copyright (c) 2013, 2015, 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_G1REMSETSUMMARY_HPP 26 #define SHARE_VM_GC_G1_G1REMSETSUMMARY_HPP 27 28 #include "utilities/globalDefinitions.hpp" 29 #include "utilities/ostream.hpp" 30 31 class G1RemSet; 32 33 // A G1RemSetSummary manages statistical information about the G1RemSet 34 35 class G1RemSetSummary VALUE_OBJ_CLASS_SPEC { 36 private: 37 friend class GetRSThreadVTimeClosure; 38 39 G1RemSet* _remset; 40 41 G1RemSet* remset() const { 42 return _remset; 43 } 44 45 size_t _num_refined_cards; 46 size_t _num_processed_buf_mutator; 47 size_t _num_processed_buf_rs_threads; 48 49 size_t _num_coarsenings; 50 51 double* _rs_threads_vtimes; 52 size_t _num_vtimes; 53 54 double _sampling_thread_vtime; 55 56 void set_rs_thread_vtime(uint thread, double value); 57 void set_sampling_thread_vtime(double value) { 58 _sampling_thread_vtime = value; 59 } 60 61 // update this summary with current data from various places 62 void update(); 63 64 public: 65 G1RemSetSummary(); 66 ~G1RemSetSummary(); 67 68 // set the counters in this summary to the values of the others 69 void set(G1RemSetSummary* other); 70 // subtract all counters from the other summary, and set them in the current 71 void subtract_from(G1RemSetSummary* other); 72 73 // initialize and get the first sampling 74 void initialize(G1RemSet* remset); 75 bool const initialized() { return _rs_threads_vtimes != NULL; } 76 77 void print_on(outputStream* out); 78 79 double rs_thread_vtime(uint thread) const; 80 81 double sampling_thread_vtime() const { 82 return _sampling_thread_vtime; 83 } 84 85 size_t num_concurrent_refined_cards() const { 86 return _num_refined_cards; 87 } 88 89 size_t num_processed_buf_mutator() const { 90 return _num_processed_buf_mutator; 91 } 92 93 size_t num_processed_buf_rs_threads() const { 94 return _num_processed_buf_rs_threads; 95 } 96 97 size_t num_processed_buf_total() const { 98 return num_processed_buf_mutator() + num_processed_buf_rs_threads(); 99 } 100 101 size_t num_coarsenings() const { 102 return _num_coarsenings; 103 } 104 }; 105 106 #endif // SHARE_VM_GC_G1_G1REMSETSUMMARY_HPP