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comparison src/share/vm/runtime/simpleThresholdPolicy.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 9191895df19d
children 487d442ef257
comparison
equal deleted inserted replaced
9055:dcdeb150988c 10105:aeaca88565e6
1 /* 1 /*
2 * Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2010, 2013, 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.
151 } 151 }
152 } 152 }
153 153
154 // Set carry flags on the counters if necessary 154 // Set carry flags on the counters if necessary
155 void SimpleThresholdPolicy::handle_counter_overflow(Method* method) { 155 void SimpleThresholdPolicy::handle_counter_overflow(Method* method) {
156 set_carry_if_necessary(method->invocation_counter()); 156 MethodCounters *mcs = method->method_counters();
157 set_carry_if_necessary(method->backedge_counter()); 157 assert(mcs != NULL, "");
158 set_carry_if_necessary(mcs->invocation_counter());
159 set_carry_if_necessary(mcs->backedge_counter());
158 MethodData* mdo = method->method_data(); 160 MethodData* mdo = method->method_data();
159 if (mdo != NULL) { 161 if (mdo != NULL) {
160 set_carry_if_necessary(mdo->invocation_counter()); 162 set_carry_if_necessary(mdo->invocation_counter());
161 set_carry_if_necessary(mdo->backedge_counter()); 163 set_carry_if_necessary(mdo->backedge_counter());
162 } 164 }