Mercurial > hg > truffle
comparison src/share/vm/gc_implementation/g1/g1StringDedupStat.hpp @ 17764:595c0f60d50d
8029075: String deduplication in G1
Summary: Implementation of JEP 192, http://openjdk.java.net/jeps/192
Reviewed-by: brutisso, tschatzl, coleenp
author | pliden |
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date | Tue, 18 Mar 2014 19:07:22 +0100 |
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17763:6e7e363c5a8f | 17764:595c0f60d50d |
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1 /* | |
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. | |
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 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPSTAT_HPP | |
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPSTAT_HPP | |
27 | |
28 #include "memory/allocation.hpp" | |
29 #include "runtime/os.hpp" | |
30 | |
31 // Macros for GC log output formating | |
32 #define G1_STRDEDUP_OBJECTS_FORMAT UINTX_FORMAT_W(12) | |
33 #define G1_STRDEDUP_TIME_FORMAT "%1.7lf secs" | |
34 #define G1_STRDEDUP_PERCENT_FORMAT "%5.1lf%%" | |
35 #define G1_STRDEDUP_PERCENT_FORMAT_NS "%.1lf%%" | |
36 #define G1_STRDEDUP_BYTES_FORMAT "%8.1lf%s" | |
37 #define G1_STRDEDUP_BYTES_FORMAT_NS "%.1lf%s" | |
38 #define G1_STRDEDUP_BYTES_PARAM(bytes) byte_size_in_proper_unit((double)(bytes)), proper_unit_for_byte_size((bytes)) | |
39 | |
40 // | |
41 // Statistics gathered by the deduplication thread. | |
42 // | |
43 class G1StringDedupStat : public StackObj { | |
44 private: | |
45 // Counters | |
46 uintx _inspected; | |
47 uintx _skipped; | |
48 uintx _hashed; | |
49 uintx _known; | |
50 uintx _new; | |
51 uintx _new_bytes; | |
52 uintx _deduped; | |
53 uintx _deduped_bytes; | |
54 uintx _deduped_young; | |
55 uintx _deduped_young_bytes; | |
56 uintx _deduped_old; | |
57 uintx _deduped_old_bytes; | |
58 uintx _idle; | |
59 uintx _exec; | |
60 uintx _block; | |
61 | |
62 // Time spent by the deduplication thread in different phases | |
63 double _start; | |
64 double _idle_elapsed; | |
65 double _exec_elapsed; | |
66 double _block_elapsed; | |
67 | |
68 public: | |
69 G1StringDedupStat(); | |
70 | |
71 void inc_inspected() { | |
72 _inspected++; | |
73 } | |
74 | |
75 void inc_skipped() { | |
76 _skipped++; | |
77 } | |
78 | |
79 void inc_hashed() { | |
80 _hashed++; | |
81 } | |
82 | |
83 void inc_known() { | |
84 _known++; | |
85 } | |
86 | |
87 void inc_new(uintx bytes) { | |
88 _new++; | |
89 _new_bytes += bytes; | |
90 } | |
91 | |
92 void inc_deduped_young(uintx bytes) { | |
93 _deduped++; | |
94 _deduped_bytes += bytes; | |
95 _deduped_young++; | |
96 _deduped_young_bytes += bytes; | |
97 } | |
98 | |
99 void inc_deduped_old(uintx bytes) { | |
100 _deduped++; | |
101 _deduped_bytes += bytes; | |
102 _deduped_old++; | |
103 _deduped_old_bytes += bytes; | |
104 } | |
105 | |
106 void mark_idle() { | |
107 _start = os::elapsedTime(); | |
108 _idle++; | |
109 } | |
110 | |
111 void mark_exec() { | |
112 double now = os::elapsedTime(); | |
113 _idle_elapsed = now - _start; | |
114 _start = now; | |
115 _exec++; | |
116 } | |
117 | |
118 void mark_block() { | |
119 double now = os::elapsedTime(); | |
120 _exec_elapsed += now - _start; | |
121 _start = now; | |
122 _block++; | |
123 } | |
124 | |
125 void mark_unblock() { | |
126 double now = os::elapsedTime(); | |
127 _block_elapsed += now - _start; | |
128 _start = now; | |
129 } | |
130 | |
131 void mark_done() { | |
132 double now = os::elapsedTime(); | |
133 _exec_elapsed += now - _start; | |
134 } | |
135 | |
136 void add(const G1StringDedupStat& stat); | |
137 | |
138 static void print_summary(outputStream* st, const G1StringDedupStat& last_stat, const G1StringDedupStat& total_stat); | |
139 static void print_statistics(outputStream* st, const G1StringDedupStat& stat, bool total); | |
140 }; | |
141 | |
142 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPSTAT_HPP |