author | erikj |
Tue, 12 Sep 2017 19:03:39 +0200 | |
changeset 47216 | 71c04702a3d5 |
parent 30764 | hotspot/src/share/vm/gc/shared/collectorCounters.hpp@fec48bf5a827 |
child 48115 | d8ec0640616c |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2002, 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_SHARED_COLLECTORCOUNTERS_HPP |
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#define SHARE_VM_GC_SHARED_COLLECTORCOUNTERS_HPP |
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#include "runtime/perfData.hpp" |
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// CollectorCounters is a holder class for performance counters |
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// that track a collector |
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class CollectorCounters: public CHeapObj<mtGC> { |
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friend class VMStructs; |
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private: |
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PerfCounter* _invocations; |
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PerfCounter* _time; |
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PerfVariable* _last_entry_time; |
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PerfVariable* _last_exit_time; |
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// Constant PerfData types don't need to retain a reference. |
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// However, it's a good idea to document them here. |
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// PerfStringConstant* _name; |
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char* _name_space; |
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public: |
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CollectorCounters(const char* name, int ordinal); |
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~CollectorCounters() { |
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if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space); |
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} |
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inline PerfCounter* invocation_counter() const { return _invocations; } |
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inline PerfCounter* time_counter() const { return _time; } |
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inline PerfVariable* last_entry_counter() const { return _last_entry_time; } |
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inline PerfVariable* last_exit_counter() const { return _last_exit_time; } |
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const char* name_space() const { return _name_space; } |
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}; |
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class TraceCollectorStats: public PerfTraceTimedEvent { |
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protected: |
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CollectorCounters* _c; |
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public: |
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inline TraceCollectorStats(CollectorCounters* c) : |
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PerfTraceTimedEvent(c->time_counter(), c->invocation_counter()), |
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_c(c) { |
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if (UsePerfData) { |
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_c->last_entry_counter()->set_value(os::elapsed_counter()); |
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} |
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} |
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inline ~TraceCollectorStats() { |
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if (UsePerfData) _c->last_exit_counter()->set_value(os::elapsed_counter()); |
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} |
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}; |
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#endif // SHARE_VM_GC_SHARED_COLLECTORCOUNTERS_HPP |