1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "src/v8.h"
6
7 #include "src/base/platform/platform.h"
8 #include "src/counters.h"
9 #include "src/isolate.h"
10
11 namespace v8 {
12 namespace internal {
13
StatsTable()14 StatsTable::StatsTable()
15 : lookup_function_(NULL),
16 create_histogram_function_(NULL),
17 add_histogram_sample_function_(NULL) {}
18
19
FindLocationInStatsTable() const20 int* StatsCounter::FindLocationInStatsTable() const {
21 return isolate_->stats_table()->FindLocation(name_);
22 }
23
24
AddSample(int sample)25 void Histogram::AddSample(int sample) {
26 if (Enabled()) {
27 isolate()->stats_table()->AddHistogramSample(histogram_, sample);
28 }
29 }
30
CreateHistogram() const31 void* Histogram::CreateHistogram() const {
32 return isolate()->stats_table()->
33 CreateHistogram(name_, min_, max_, num_buckets_);
34 }
35
36
37 // Start the timer.
Start()38 void HistogramTimer::Start() {
39 if (Enabled()) {
40 timer_.Start();
41 }
42 isolate()->event_logger()(name(), Logger::START);
43 }
44
45
46 // Stop the timer and record the results.
Stop()47 void HistogramTimer::Stop() {
48 if (Enabled()) {
49 // Compute the delta between start and stop, in milliseconds.
50 AddSample(static_cast<int>(timer_.Elapsed().InMilliseconds()));
51 timer_.Stop();
52 }
53 isolate()->event_logger()(name(), Logger::END);
54 }
55
56
Counters(Isolate * isolate)57 Counters::Counters(Isolate* isolate) {
58 #define HR(name, caption, min, max, num_buckets) \
59 name##_ = Histogram(#caption, min, max, num_buckets, isolate);
60 HISTOGRAM_RANGE_LIST(HR)
61 #undef HR
62
63 #define HT(name, caption) \
64 name##_ = HistogramTimer(#caption, 0, 10000, 50, isolate);
65 HISTOGRAM_TIMER_LIST(HT)
66 #undef HT
67
68 #define HP(name, caption) \
69 name##_ = Histogram(#caption, 0, 101, 100, isolate);
70 HISTOGRAM_PERCENTAGE_LIST(HP)
71 #undef HP
72
73 #define HM(name, caption) \
74 name##_ = Histogram(#caption, 1000, 500000, 50, isolate);
75 HISTOGRAM_MEMORY_LIST(HM)
76 #undef HM
77
78 #define SC(name, caption) \
79 name##_ = StatsCounter(isolate, "c:" #caption);
80
81 STATS_COUNTER_LIST_1(SC)
82 STATS_COUNTER_LIST_2(SC)
83 #undef SC
84
85 #define SC(name) \
86 count_of_##name##_ = StatsCounter(isolate, "c:" "V8.CountOf_" #name); \
87 size_of_##name##_ = StatsCounter(isolate, "c:" "V8.SizeOf_" #name);
88 INSTANCE_TYPE_LIST(SC)
89 #undef SC
90
91 #define SC(name) \
92 count_of_CODE_TYPE_##name##_ = \
93 StatsCounter(isolate, "c:" "V8.CountOf_CODE_TYPE-" #name); \
94 size_of_CODE_TYPE_##name##_ = \
95 StatsCounter(isolate, "c:" "V8.SizeOf_CODE_TYPE-" #name);
96 CODE_KIND_LIST(SC)
97 #undef SC
98
99 #define SC(name) \
100 count_of_FIXED_ARRAY_##name##_ = \
101 StatsCounter(isolate, "c:" "V8.CountOf_FIXED_ARRAY-" #name); \
102 size_of_FIXED_ARRAY_##name##_ = \
103 StatsCounter(isolate, "c:" "V8.SizeOf_FIXED_ARRAY-" #name);
104 FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC)
105 #undef SC
106
107 #define SC(name) \
108 count_of_CODE_AGE_##name##_ = \
109 StatsCounter(isolate, "c:" "V8.CountOf_CODE_AGE-" #name); \
110 size_of_CODE_AGE_##name##_ = \
111 StatsCounter(isolate, "c:" "V8.SizeOf_CODE_AGE-" #name);
112 CODE_AGE_LIST_COMPLETE(SC)
113 #undef SC
114 }
115
116
ResetCounters()117 void Counters::ResetCounters() {
118 #define SC(name, caption) name##_.Reset();
119 STATS_COUNTER_LIST_1(SC)
120 STATS_COUNTER_LIST_2(SC)
121 #undef SC
122
123 #define SC(name) \
124 count_of_##name##_.Reset(); \
125 size_of_##name##_.Reset();
126 INSTANCE_TYPE_LIST(SC)
127 #undef SC
128
129 #define SC(name) \
130 count_of_CODE_TYPE_##name##_.Reset(); \
131 size_of_CODE_TYPE_##name##_.Reset();
132 CODE_KIND_LIST(SC)
133 #undef SC
134
135 #define SC(name) \
136 count_of_FIXED_ARRAY_##name##_.Reset(); \
137 size_of_FIXED_ARRAY_##name##_.Reset();
138 FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC)
139 #undef SC
140
141 #define SC(name) \
142 count_of_CODE_AGE_##name##_.Reset(); \
143 size_of_CODE_AGE_##name##_.Reset();
144 CODE_AGE_LIST_COMPLETE(SC)
145 #undef SC
146 }
147
148
ResetHistograms()149 void Counters::ResetHistograms() {
150 #define HR(name, caption, min, max, num_buckets) name##_.Reset();
151 HISTOGRAM_RANGE_LIST(HR)
152 #undef HR
153
154 #define HT(name, caption) name##_.Reset();
155 HISTOGRAM_TIMER_LIST(HT)
156 #undef HT
157
158 #define HP(name, caption) name##_.Reset();
159 HISTOGRAM_PERCENTAGE_LIST(HP)
160 #undef HP
161
162 #define HM(name, caption) name##_.Reset();
163 HISTOGRAM_MEMORY_LIST(HM)
164 #undef HM
165 }
166
167 } } // namespace v8::internal
168