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annotate src/share/vm/oops/methodCounters.cpp @ 10105:aeaca88565e6

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8010862: The Method counter fields used for profiling can be allocated lazily. Summary: Allocate the method's profiling related metadata until they are needed. Reviewed-by: coleenp, roland
author jiangli
date Tue, 09 Apr 2013 17:17:41 -0400
parents
children a1ebd310d5c1
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10105
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
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6 * under the terms of the GNU General Public License version 2 only, as
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
aeaca88565e6 8010862: The Method counter fields used for profiling can be allocated lazily.
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24 #include "precompiled.hpp"
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25 #include "oops/methodCounters.hpp"
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26 #include "runtime/thread.inline.hpp"
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27
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28 MethodCounters* MethodCounters::allocate(ClassLoaderData* loader_data, TRAPS) {
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29 return new(loader_data, size(), false, THREAD) MethodCounters();
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30 }
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31
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32 void MethodCounters::clear_counters() {
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33 invocation_counter()->reset();
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34 backedge_counter()->reset();
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35 set_interpreter_throwout_count(0);
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36 set_interpreter_invocation_count(0);
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37 }