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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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).
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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 
inc_inspected()71   void inc_inspected() {
72     _inspected++;
73   }
74 
inc_skipped()75   void inc_skipped() {
76     _skipped++;
77   }
78 
inc_hashed()79   void inc_hashed() {
80     _hashed++;
81   }
82 
inc_known()83   void inc_known() {
84     _known++;
85   }
86 
inc_new(uintx bytes)87   void inc_new(uintx bytes) {
88     _new++;
89     _new_bytes += bytes;
90   }
91 
inc_deduped_young(uintx bytes)92   void inc_deduped_young(uintx bytes) {
93     _deduped++;
94     _deduped_bytes += bytes;
95     _deduped_young++;
96     _deduped_young_bytes += bytes;
97   }
98 
inc_deduped_old(uintx bytes)99   void inc_deduped_old(uintx bytes) {
100     _deduped++;
101     _deduped_bytes += bytes;
102     _deduped_old++;
103     _deduped_old_bytes += bytes;
104   }
105 
mark_idle()106   void mark_idle() {
107     _start = os::elapsedTime();
108     _idle++;
109   }
110 
mark_exec()111   void mark_exec() {
112     double now = os::elapsedTime();
113     _idle_elapsed = now - _start;
114     _start = now;
115     _exec++;
116   }
117 
mark_block()118   void mark_block() {
119     double now = os::elapsedTime();
120     _exec_elapsed += now - _start;
121     _start = now;
122     _block++;
123   }
124 
mark_unblock()125   void mark_unblock() {
126     double now = os::elapsedTime();
127     _block_elapsed += now - _start;
128     _start = now;
129   }
130 
mark_done()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
143