119 lines
3.3 KiB
C++
119 lines
3.3 KiB
C++
/*
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* Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_VM_GC_G1_G1REMSETSUMMARY_HPP
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#define SHARE_VM_GC_G1_G1REMSETSUMMARY_HPP
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#include "utilities/ostream.hpp"
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class G1RemSet;
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// A G1RemSetSummary manages statistical information about the G1RemSet
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class G1RemSetSummary VALUE_OBJ_CLASS_SPEC {
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private:
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friend class GetRSThreadVTimeClosure;
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G1RemSet* _remset;
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G1RemSet* remset() const {
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return _remset;
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}
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size_t _num_refined_cards;
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size_t _num_processed_buf_mutator;
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size_t _num_processed_buf_rs_threads;
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size_t _num_coarsenings;
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double* _rs_threads_vtimes;
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size_t _num_vtimes;
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double _sampling_thread_vtime;
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void set_rs_thread_vtime(uint thread, double value);
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void set_sampling_thread_vtime(double value) {
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_sampling_thread_vtime = value;
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}
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void free_and_null() {
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if (_rs_threads_vtimes) {
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FREE_C_HEAP_ARRAY(double, _rs_threads_vtimes);
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_rs_threads_vtimes = NULL;
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_num_vtimes = 0;
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}
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}
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// update this summary with current data from various places
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void update();
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public:
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G1RemSetSummary() : _remset(NULL), _num_refined_cards(0),
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_num_processed_buf_mutator(0), _num_processed_buf_rs_threads(0), _num_coarsenings(0),
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_rs_threads_vtimes(NULL), _num_vtimes(0), _sampling_thread_vtime(0.0f) {
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}
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~G1RemSetSummary() {
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free_and_null();
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}
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// set the counters in this summary to the values of the others
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void set(G1RemSetSummary* other);
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// subtract all counters from the other summary, and set them in the current
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void subtract_from(G1RemSetSummary* other);
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// initialize and get the first sampling
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void initialize(G1RemSet* remset);
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void print_on(outputStream* out);
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double rs_thread_vtime(uint thread) const;
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double sampling_thread_vtime() const {
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return _sampling_thread_vtime;
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}
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size_t num_concurrent_refined_cards() const {
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return _num_refined_cards;
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}
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size_t num_processed_buf_mutator() const {
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return _num_processed_buf_mutator;
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}
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size_t num_processed_buf_rs_threads() const {
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return _num_processed_buf_rs_threads;
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}
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size_t num_processed_buf_total() const {
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return num_processed_buf_mutator() + num_processed_buf_rs_threads();
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}
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size_t num_coarsenings() const {
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return _num_coarsenings;
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}
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};
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#endif // SHARE_VM_GC_G1_G1REMSETSUMMARY_HPP
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