1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/gc_implementation/shared/collectorCounters.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,87 @@
1.4 +/*
1.5 + * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_COLLECTORCOUNTERS_HPP
1.29 +#define SHARE_VM_GC_IMPLEMENTATION_SHARED_COLLECTORCOUNTERS_HPP
1.30 +
1.31 +#include "runtime/perfData.hpp"
1.32 +
1.33 +// CollectorCounters is a holder class for performance counters
1.34 +// that track a collector
1.35 +
1.36 +class CollectorCounters: public CHeapObj<mtGC> {
1.37 + friend class VMStructs;
1.38 +
1.39 + private:
1.40 + PerfCounter* _invocations;
1.41 + PerfCounter* _time;
1.42 + PerfVariable* _last_entry_time;
1.43 + PerfVariable* _last_exit_time;
1.44 +
1.45 + // Constant PerfData types don't need to retain a reference.
1.46 + // However, it's a good idea to document them here.
1.47 + // PerfStringConstant* _name;
1.48 +
1.49 + char* _name_space;
1.50 +
1.51 + public:
1.52 +
1.53 + CollectorCounters(const char* name, int ordinal);
1.54 +
1.55 + ~CollectorCounters() {
1.56 + if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space, mtGC);
1.57 + }
1.58 +
1.59 + inline PerfCounter* invocation_counter() const { return _invocations; }
1.60 +
1.61 + inline PerfCounter* time_counter() const { return _time; }
1.62 +
1.63 + inline PerfVariable* last_entry_counter() const { return _last_entry_time; }
1.64 +
1.65 + inline PerfVariable* last_exit_counter() const { return _last_exit_time; }
1.66 +
1.67 + const char* name_space() const { return _name_space; }
1.68 +};
1.69 +
1.70 +class TraceCollectorStats: public PerfTraceTimedEvent {
1.71 +
1.72 + protected:
1.73 + CollectorCounters* _c;
1.74 +
1.75 + public:
1.76 + inline TraceCollectorStats(CollectorCounters* c) :
1.77 + PerfTraceTimedEvent(c->time_counter(), c->invocation_counter()),
1.78 + _c(c) {
1.79 +
1.80 + if (UsePerfData) {
1.81 + _c->last_entry_counter()->set_value(os::elapsed_counter());
1.82 + }
1.83 + }
1.84 +
1.85 + inline ~TraceCollectorStats() {
1.86 + if (UsePerfData) _c->last_exit_counter()->set_value(os::elapsed_counter());
1.87 + }
1.88 +};
1.89 +
1.90 +#endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_COLLECTORCOUNTERS_HPP
