| /* |
| * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSETSUMMARY_HPP |
| #define SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSETSUMMARY_HPP |
| |
| #include "utilities/ostream.hpp" |
| |
| class G1RemSet; |
| |
| // A G1RemSetSummary manages statistical information about the G1RemSet |
| |
| class G1RemSetSummary VALUE_OBJ_CLASS_SPEC { |
| private: |
| friend class GetRSThreadVTimeClosure; |
| |
| G1RemSet* _remset; |
| |
| G1RemSet* remset() const { |
| return _remset; |
| } |
| |
| size_t _num_refined_cards; |
| size_t _num_processed_buf_mutator; |
| size_t _num_processed_buf_rs_threads; |
| |
| size_t _num_coarsenings; |
| |
| double* _rs_threads_vtimes; |
| size_t _num_vtimes; |
| |
| double _sampling_thread_vtime; |
| |
| void set_rs_thread_vtime(uint thread, double value); |
| void set_sampling_thread_vtime(double value) { |
| _sampling_thread_vtime = value; |
| } |
| |
| void free_and_null() { |
| if (_rs_threads_vtimes) { |
| FREE_C_HEAP_ARRAY(double, _rs_threads_vtimes, mtGC); |
| _rs_threads_vtimes = NULL; |
| _num_vtimes = 0; |
| } |
| } |
| |
| // update this summary with current data from various places |
| void update(); |
| |
| public: |
| G1RemSetSummary() : _remset(NULL), _num_refined_cards(0), |
| _num_processed_buf_mutator(0), _num_processed_buf_rs_threads(0), _num_coarsenings(0), |
| _rs_threads_vtimes(NULL), _num_vtimes(0), _sampling_thread_vtime(0.0f) { |
| } |
| |
| ~G1RemSetSummary() { |
| free_and_null(); |
| } |
| |
| // set the counters in this summary to the values of the others |
| void set(G1RemSetSummary* other); |
| // subtract all counters from the other summary, and set them in the current |
| void subtract_from(G1RemSetSummary* other); |
| |
| // initialize and get the first sampling |
| void initialize(G1RemSet* remset); |
| |
| void print_on(outputStream* out); |
| |
| double rs_thread_vtime(uint thread) const; |
| |
| double sampling_thread_vtime() const { |
| return _sampling_thread_vtime; |
| } |
| |
| size_t num_concurrent_refined_cards() const { |
| return _num_refined_cards; |
| } |
| |
| size_t num_processed_buf_mutator() const { |
| return _num_processed_buf_mutator; |
| } |
| |
| size_t num_processed_buf_rs_threads() const { |
| return _num_processed_buf_rs_threads; |
| } |
| |
| size_t num_processed_buf_total() const { |
| return num_processed_buf_mutator() + num_processed_buf_rs_threads(); |
| } |
| |
| size_t num_coarsenings() const { |
| return _num_coarsenings; |
| } |
| }; |
| |
| #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSETSUMMARY_HPP |