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39
40#include "qv4profiling_p.h"
41#include <private/qv4mm_p.h>
42#include <private/qv4string_p.h>
43
44QT_BEGIN_NAMESPACE
45
46namespace QV4 {
47namespace Profiling {
48
49FunctionLocation FunctionCall::resolveLocation() const
50{
51 return FunctionLocation(m_function->name()->toQString(),
52 m_function->executableCompilationUnit()->fileName(),
53 m_function->compiledFunction->location.line,
54 m_function->compiledFunction->location.column);
55}
56
57FunctionCallProperties FunctionCall::properties() const
58{
59 FunctionCallProperties props = {
60 .start: m_start,
61 .end: m_end,
62 .id: reinterpret_cast<quintptr>(m_function)
63 };
64 return props;
65}
66
67Profiler::Profiler(QV4::ExecutionEngine *engine) : featuresEnabled(0), m_engine(engine)
68{
69 static const int metatypes[] = {
70 qRegisterMetaType<QVector<QV4::Profiling::FunctionCallProperties> >(),
71 qRegisterMetaType<QVector<QV4::Profiling::MemoryAllocationProperties> >(),
72 qRegisterMetaType<FunctionLocationHash>()
73 };
74 Q_UNUSED(metatypes);
75 m_timer.start();
76}
77
78void Profiler::stopProfiling()
79{
80 featuresEnabled = 0;
81 reportData();
82 m_sentLocations.clear();
83}
84
85bool operator<(const FunctionCall &call1, const FunctionCall &call2)
86{
87 return call1.m_start < call2.m_start ||
88 (call1.m_start == call2.m_start && (call1.m_end < call2.m_end ||
89 (call1.m_end == call2.m_end && call1.m_function < call2.m_function)));
90}
91
92void Profiler::reportData()
93{
94 std::sort(first: m_data.begin(), last: m_data.end());
95 QVector<FunctionCallProperties> properties;
96 FunctionLocationHash locations;
97 properties.reserve(size: m_data.size());
98
99 for (const FunctionCall &call : qAsConst(t&: m_data)) {
100 properties.append(t: call.properties());
101 Function *function = call.function();
102 SentMarker &marker = m_sentLocations[reinterpret_cast<quintptr>(function)];
103 if (!marker.isValid()) {
104 FunctionLocation &location = locations[properties.constLast().id];
105 if (!location.isValid())
106 location = call.resolveLocation();
107 marker.setFunction(function);
108 }
109 }
110
111 emit dataReady(locations, properties, m_memory_data);
112 m_data.clear();
113 m_memory_data.clear();
114}
115
116void Profiler::startProfiling(quint64 features)
117{
118 if (featuresEnabled == 0) {
119 if (features & (1 << FeatureMemoryAllocation)) {
120 qint64 timestamp = m_timer.nsecsElapsed();
121 MemoryAllocationProperties heap = {.timestamp: timestamp,
122 .size: (qint64)m_engine->memoryManager->getAllocatedMem() -
123 (qint64)m_engine->memoryManager->getLargeItemsMem(),
124 .type: HeapPage};
125 m_memory_data.append(t: heap);
126 MemoryAllocationProperties small = {.timestamp: timestamp,
127 .size: (qint64)m_engine->memoryManager->getUsedMem(),
128 .type: SmallItem};
129 m_memory_data.append(t: small);
130 MemoryAllocationProperties large = {.timestamp: timestamp,
131 .size: (qint64)m_engine->memoryManager->getLargeItemsMem(),
132 .type: LargeItem};
133 m_memory_data.append(t: large);
134 }
135
136 featuresEnabled = features;
137 }
138}
139
140} // namespace Profiling
141} // namespace QV4
142
143QT_END_NAMESPACE
144
145#include "moc_qv4profiling_p.cpp"
146

source code of qtdeclarative/src/qml/jsruntime/qv4profiling.cpp