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annotate src/share/vm/runtime/thread.inline.hpp @ 9126:bc26f978b0ce

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HotSpotResolvedObjectType: implement hasFinalizeSubclass() correctly don't use the (wrong) cached value, but ask the runtime on each request. Fixes regression on xml.* benchmarks @ specjvm2008. The problem was: After the constructor of Object was deoptimized due to an assumption violation, it was recompiled again after some time. However, on recompilation, the value of hasFinalizeSubclass for the class was not updated and it was compiled again with a, now wrong, assumption, which then triggers deoptimization again. This was repeated until it hit the recompilation limit (defined by PerMethodRecompilationCutoff), and therefore only executed by the interpreter from now on, causing the performance regression.
author Bernhard Urban <bernhard.urban@jku.at>
date Mon, 15 Apr 2013 19:54:58 +0200
parents f34d701e952e
children bdd155477289
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1 /*
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2 * Copyright (c) 2012, 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
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6 * under the terms of the GNU General Public License version 2 only, as
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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
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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
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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
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25 #ifndef SHARE_VM_RUNTIME_THREAD_INLINE_HPP
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26 #define SHARE_VM_RUNTIME_THREAD_INLINE_HPP
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27
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28 #define SHARE_VM_RUNTIME_THREAD_INLINE_HPP_SCOPE
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29
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30 #include "runtime/thread.hpp"
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31 #ifdef TARGET_OS_FAMILY_linux
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32 # include "thread_linux.inline.hpp"
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33 #endif
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34 #ifdef TARGET_OS_FAMILY_solaris
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35 # include "thread_solaris.inline.hpp"
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36 #endif
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37 #ifdef TARGET_OS_FAMILY_windows
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38 # include "thread_windows.inline.hpp"
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39 #endif
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40 #ifdef TARGET_OS_FAMILY_bsd
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41 # include "thread_bsd.inline.hpp"
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42 #endif
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43
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44 #undef SHARE_VM_RUNTIME_THREAD_INLINE_HPP_SCOPE
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45
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46 #endif // SHARE_VM_RUNTIME_THREAD_INLINE_HPP