Mercurial > hg > truffle
annotate src/share/vm/compiler/compilerOracle.hpp @ 1994:6cd6d394f280
7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed())
7002546: regression on SpecJbb2005 on 7b118 comparing to 7b117 on small heaps
Summary: Relaxed assertion checking related to incremental_collection_failed flag to allow for ExplicitGCInvokesConcurrent behaviour where we do not want a failing scavenge to bail to a stop-world collection. Parameterized incremental_collection_will_fail() so we can selectively use, or not use, as appropriate, the statistical prediction at specific use sites. This essentially reverts the scavenge bail-out logic to what it was prior to some recent changes that had inadvertently started using the statistical prediction which can be noisy in the presence of bursty loads. Added some associated verbose non-product debugging messages.
Reviewed-by: johnc, tonyp
author | ysr |
---|---|
date | Tue, 07 Dec 2010 21:55:53 -0800 |
parents | f95d63e2154a |
children | 3582bf76420e |
rev | line source |
---|---|
0 | 1 /* |
1972 | 2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
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 | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_COMPILER_COMPILERORACLE_HPP |
26 #define SHARE_VM_COMPILER_COMPILERORACLE_HPP | |
27 | |
28 #include "memory/allocation.hpp" | |
29 #include "oops/oopsHierarchy.hpp" | |
30 | |
0 | 31 // CompilerOracle is an interface for turning on and off compilation |
32 // for some methods | |
33 | |
34 class symbolHandle; | |
35 | |
36 class CompilerOracle : AllStatic { | |
37 private: | |
38 static bool _quiet; | |
39 | |
40 public: | |
41 // Reads from file and adds to lists | |
42 static void parse_from_file(); | |
43 | |
44 // Tells whether we to exclude compilation of method | |
45 static bool should_exclude(methodHandle method, bool& quietly); | |
46 | |
47 // Tells whether we want to inline this method | |
48 static bool should_inline(methodHandle method); | |
49 | |
50 // Tells whether we want to disallow inlining of this method | |
51 static bool should_not_inline(methodHandle method); | |
52 | |
53 // Tells whether we should print the assembly for this method | |
54 static bool should_print(methodHandle method); | |
55 | |
56 // Tells whether we should log the compilation data for this method | |
57 static bool should_log(methodHandle method); | |
58 | |
59 // Tells whether to break when compiling method | |
60 static bool should_break_at(methodHandle method); | |
61 | |
62 // Check to see if this method has option set for it | |
63 static bool has_option_string(methodHandle method, const char * option); | |
64 | |
65 // Reads from string instead of file | |
66 static void parse_from_string(const char* command_string, void (*parser)(char*)); | |
67 | |
68 static void parse_from_line(char* line); | |
69 static void parse_compile_only(char * line); | |
70 | |
71 // For updating the oracle file | |
72 static void append_comment_to_file(const char* message); | |
73 static void append_exclude_to_file(methodHandle method); | |
74 }; | |
1972 | 75 |
76 #endif // SHARE_VM_COMPILER_COMPILERORACLE_HPP |