--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1RemSetSummary.hpp Tue May 28 09:32:06 2013 +0200
@@ -0,0 +1,118 @@
+/*
+ * 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, uint num_workers);
+
+ 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