equal
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inserted
replaced
1 /* |
1 /* |
2 * Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
5 * This code is free software; you can redistribute it and/or modify it |
6 * under the terms of the GNU General Public License version 2 only, as |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
21 * questions. |
21 * questions. |
22 * |
22 * |
23 */ |
23 */ |
24 |
24 |
25 #include "precompiled.hpp" |
25 #include "precompiled.hpp" |
|
26 #include "classfile/classLoaderData.inline.hpp" |
26 #include "code/compiledIC.hpp" |
27 #include "code/compiledIC.hpp" |
27 #include "code/nmethod.hpp" |
28 #include "code/nmethod.hpp" |
28 #include "code/scopeDesc.hpp" |
29 #include "code/scopeDesc.hpp" |
29 #include "interpreter/interpreter.hpp" |
30 #include "interpreter/interpreter.hpp" |
30 #include "memory/resourceArea.hpp" |
31 #include "memory/resourceArea.hpp" |
310 |
311 |
311 // This operation is going to be performed only at the end of a safepoint |
312 // This operation is going to be performed only at the end of a safepoint |
312 // and hence GC's will not be going on, all Java mutators are suspended |
313 // and hence GC's will not be going on, all Java mutators are suspended |
313 // at this point and hence SystemDictionary_lock is also not needed. |
314 // at this point and hence SystemDictionary_lock is also not needed. |
314 assert(SafepointSynchronize::is_at_safepoint(), "can only be executed at a safepoint"); |
315 assert(SafepointSynchronize::is_at_safepoint(), "can only be executed at a safepoint"); |
315 int nclasses = InstanceKlass::number_of_instance_classes(); |
316 int nclasses = ClassLoaderDataGraph::num_instance_classes(); |
316 int classes_per_tick = nclasses * (CounterDecayMinIntervalLength * 1e-3 / |
317 int classes_per_tick = nclasses * (CounterDecayMinIntervalLength * 1e-3 / |
317 CounterHalfLifeTime); |
318 CounterHalfLifeTime); |
318 for (int i = 0; i < classes_per_tick; i++) { |
319 for (int i = 0; i < classes_per_tick; i++) { |
319 InstanceKlass* k = ClassLoaderDataGraph::try_get_next_class(); |
320 InstanceKlass* k = ClassLoaderDataGraph::try_get_next_class(); |
320 if (k != NULL) { |
321 if (k != NULL) { |