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comparison src/share/vm/ci/ciMethod.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 16885e702c88
children 6f3fd5150b67
comparison
equal deleted inserted replaced
9055:dcdeb150988c 10105:aeaca88565e6
1 /* 1 /*
2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1999, 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.
903 if (md->is_empty()) return NULL; 903 if (md->is_empty()) return NULL;
904 return md; 904 return md;
905 } 905 }
906 906
907 // ------------------------------------------------------------------ 907 // ------------------------------------------------------------------
908 // ciMethod::ensure_method_counters
909 //
910 address ciMethod::ensure_method_counters() {
911 check_is_loaded();
912 VM_ENTRY_MARK;
913 methodHandle mh(THREAD, get_Method());
914 MethodCounters *counter = mh->method_counters();
915 if (counter == NULL) {
916 counter = Method::build_method_counters(mh(), CHECK_AND_CLEAR_NULL);
917 }
918 return (address)counter;
919 }
920
921 // ------------------------------------------------------------------
908 // ciMethod::should_exclude 922 // ciMethod::should_exclude
909 // 923 //
910 // Should this method be excluded from compilation? 924 // Should this method be excluded from compilation?
911 bool ciMethod::should_exclude() { 925 bool ciMethod::should_exclude() {
912 check_is_loaded(); 926 check_is_loaded();
1189 1203
1190 void ciMethod::dump_replay_data(outputStream* st) { 1204 void ciMethod::dump_replay_data(outputStream* st) {
1191 ASSERT_IN_VM; 1205 ASSERT_IN_VM;
1192 ResourceMark rm; 1206 ResourceMark rm;
1193 Method* method = get_Method(); 1207 Method* method = get_Method();
1208 MethodCounters* mcs = method->method_counters();
1194 Klass* holder = method->method_holder(); 1209 Klass* holder = method->method_holder();
1195 st->print_cr("ciMethod %s %s %s %d %d %d %d %d", 1210 st->print_cr("ciMethod %s %s %s %d %d %d %d %d",
1196 holder->name()->as_quoted_ascii(), 1211 holder->name()->as_quoted_ascii(),
1197 method->name()->as_quoted_ascii(), 1212 method->name()->as_quoted_ascii(),
1198 method->signature()->as_quoted_ascii(), 1213 method->signature()->as_quoted_ascii(),
1199 method->invocation_counter()->raw_counter(), 1214 mcs == NULL ? 0 : mcs->invocation_counter()->raw_counter(),
1200 method->backedge_counter()->raw_counter(), 1215 mcs == NULL ? 0 : mcs->backedge_counter()->raw_counter(),
1201 interpreter_invocation_count(), 1216 interpreter_invocation_count(),
1202 interpreter_throwout_count(), 1217 interpreter_throwout_count(),
1203 _instructions_size); 1218 _instructions_size);
1204 } 1219 }
1205 1220