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