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Side by Side Diff: test/cctest/libplatform/test-tracing.cc

Issue 2183943002: Revert of [Tracing] V8 Tracing Controller (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 4 months ago
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1 // Copyright 2016 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 #include <stdio.h>
5
6 #include "include/libplatform/v8-tracing.h"
7 #include "src/tracing/trace-event.h"
8 #include "test/cctest/cctest.h"
9
10 namespace v8 {
11 namespace platform {
12 namespace tracing {
13
14 TEST(TestTraceConfig) {
15 LocalContext env;
16 TraceConfig* trace_config = new TraceConfig();
17 trace_config->EnableSampling();
18 trace_config->AddIncludedCategory("v8");
19 trace_config->AddIncludedCategory(TRACE_DISABLED_BY_DEFAULT("v8.runtime"));
20 trace_config->AddExcludedCategory("v8.cpu_profile");
21
22 CHECK_EQ(trace_config->IsSamplingEnabled(), true);
23 CHECK_EQ(trace_config->IsSystraceEnabled(), false);
24 CHECK_EQ(trace_config->IsArgumentFilterEnabled(), false);
25 CHECK_EQ(trace_config->IsCategoryGroupEnabled("v8"), true);
26 CHECK_EQ(trace_config->IsCategoryGroupEnabled("v8.cpu_profile"), false);
27 CHECK_EQ(trace_config->IsCategoryGroupEnabled("v8.cpu_profile.hires"), false);
28 CHECK_EQ(trace_config->IsCategoryGroupEnabled(
29 TRACE_DISABLED_BY_DEFAULT("v8.runtime")),
30 true);
31 delete trace_config;
32 }
33
34 TEST(TestTraceObject) {
35 TraceObject trace_object;
36 uint8_t category_enabled_flag = 41;
37 trace_object.Initialize('X', &category_enabled_flag, "Test.Trace",
38 "Test.Scope", 42, 123, 0, NULL, NULL, NULL, 0);
39 CHECK_EQ('X', trace_object.phase());
40 CHECK_EQ(category_enabled_flag, *trace_object.category_enabled_flag());
41 CHECK_EQ("Test.Trace", trace_object.name());
42 CHECK_EQ("Test.Scope", trace_object.scope());
43 CHECK_EQ(0, trace_object.duration());
44 CHECK_EQ(0, trace_object.cpu_duration());
45 }
46
47 class MockTraceWriter : public TraceWriter {
48 public:
49 void AppendTraceEvent(TraceObject* trace_event) override {
50 events_.push_back(trace_event->name());
51 }
52
53 void Flush() override {}
54
55 std::vector<std::string> events() { return events_; }
56
57 private:
58 std::vector<std::string> events_;
59 };
60
61 TEST(TestTraceBufferRingBuffer) {
62 // We should be able to add kChunkSize * 2 + 1 trace events.
63 const int HANDLES_COUNT = TraceBufferChunk::kChunkSize * 2 + 1;
64 MockTraceWriter* writer = new MockTraceWriter();
65 TraceBuffer* ring_buffer =
66 TraceBuffer::CreateTraceBufferRingBuffer(2, writer);
67 std::string names[HANDLES_COUNT];
68 for (int i = 0; i < HANDLES_COUNT; ++i) {
69 names[i] = "Test.EventNo" + std::to_string(i);
70 }
71
72 std::vector<uint64_t> handles(HANDLES_COUNT);
73 uint8_t category_enabled_flag = 41;
74 for (size_t i = 0; i < handles.size(); ++i) {
75 TraceObject* trace_object = ring_buffer->AddTraceEvent(&handles[i]);
76 CHECK_NOT_NULL(trace_object);
77 trace_object->Initialize('X', &category_enabled_flag, names[i].c_str(),
78 "Test.Scope", 42, 123, 0, NULL, NULL, NULL, 0);
79 trace_object = ring_buffer->GetEventByHandle(handles[i]);
80 CHECK_NOT_NULL(trace_object);
81 CHECK_EQ('X', trace_object->phase());
82 CHECK_EQ(names[i].c_str(), trace_object->name());
83 CHECK_EQ(category_enabled_flag, *trace_object->category_enabled_flag());
84 }
85
86 // We should only be able to retrieve the last kChunkSize + 1.
87 for (size_t i = 0; i < TraceBufferChunk::kChunkSize; ++i) {
88 CHECK_NULL(ring_buffer->GetEventByHandle(handles[i]));
89 }
90
91 for (size_t i = TraceBufferChunk::kChunkSize; i < handles.size(); ++i) {
92 TraceObject* trace_object = ring_buffer->GetEventByHandle(handles[i]);
93 CHECK_NOT_NULL(trace_object);
94 // The object properties should be correct.
95 CHECK_EQ('X', trace_object->phase());
96 CHECK_EQ(names[i], std::string(trace_object->name()));
97 CHECK_EQ(category_enabled_flag, *trace_object->category_enabled_flag());
98 }
99
100 // Check Flush(), that the writer wrote the last kChunkSize 1 event names.
101 ring_buffer->Flush();
102 auto events = writer->events();
103 CHECK_EQ(TraceBufferChunk::kChunkSize + 1, events.size());
104 for (size_t i = TraceBufferChunk::kChunkSize; i < handles.size(); ++i) {
105 CHECK_EQ(names[i], events[i - TraceBufferChunk::kChunkSize]);
106 }
107 delete ring_buffer;
108 }
109
110 TEST(TestJSONTraceWriter) {
111 std::ostringstream stream;
112 v8::Platform* old_platform = i::V8::GetCurrentPlatform();
113 v8::Platform* default_platform = v8::platform::CreateDefaultPlatform();
114 i::V8::SetPlatformForTesting(default_platform);
115 // Create a scope for the tracing controller to terminate the trace writer.
116 {
117 TracingController tracing_controller;
118 platform::SetTracingController(default_platform, &tracing_controller);
119 TraceWriter* writer = TraceWriter::CreateJSONTraceWriter(stream);
120
121 TraceBuffer* ring_buffer =
122 TraceBuffer::CreateTraceBufferRingBuffer(1, writer);
123 tracing_controller.Initialize(ring_buffer);
124 TraceConfig* trace_config = new TraceConfig();
125 trace_config->AddIncludedCategory("v8-cat");
126 tracing_controller.StartTracing(trace_config);
127
128 TraceObject trace_object;
129 trace_object.InitializeForTesting(
130 'X', tracing_controller.GetCategoryGroupEnabled("v8-cat"), "Test0",
131 v8::internal::tracing::kGlobalScope, 42, 123, 0, NULL, NULL, NULL, 0,
132 11, 22, 100, 50, 33, 44);
133 writer->AppendTraceEvent(&trace_object);
134 trace_object.InitializeForTesting(
135 'Y', tracing_controller.GetCategoryGroupEnabled("v8-cat"), "Test1",
136 v8::internal::tracing::kGlobalScope, 43, 456, 0, NULL, NULL, NULL, 0,
137 55, 66, 110, 55, 77, 88);
138 writer->AppendTraceEvent(&trace_object);
139 tracing_controller.StopTracing();
140 }
141
142 std::string trace_str = stream.str();
143 std::string expected_trace_str =
144 "{\"traceEvents\":[{\"pid\":11,\"tid\":22,\"ts\":100,\"tts\":50,"
145 "\"ph\":\"X\",\"cat\":\"v8-cat\",\"name\":\"Test0\",\"args\":{},"
146 "\"dur\":33,\"tdur\":44},{\"pid\":55,\"tid\":66,\"ts\":110,\"tts\":55,"
147 "\"ph\":\"Y\",\"cat\":\"v8-cat\",\"name\":\"Test1\",\"args\":{},\"dur\":"
148 "77,\"tdur\":88}]}";
149
150 CHECK_EQ(expected_trace_str, trace_str);
151
152 i::V8::SetPlatformForTesting(old_platform);
153 }
154
155 TEST(TestTracingController) {
156 v8::Platform* old_platform = i::V8::GetCurrentPlatform();
157 v8::Platform* default_platform = v8::platform::CreateDefaultPlatform();
158 i::V8::SetPlatformForTesting(default_platform);
159
160 TracingController tracing_controller;
161 platform::SetTracingController(default_platform, &tracing_controller);
162
163 MockTraceWriter* writer = new MockTraceWriter();
164 TraceBuffer* ring_buffer =
165 TraceBuffer::CreateTraceBufferRingBuffer(1, writer);
166 tracing_controller.Initialize(ring_buffer);
167 TraceConfig* trace_config = new TraceConfig();
168 trace_config->AddIncludedCategory("v8");
169 tracing_controller.StartTracing(trace_config);
170
171 TRACE_EVENT0("v8", "v8.Test");
172 // cat category is not included in default config
173 TRACE_EVENT0("cat", "v8.Test2");
174 TRACE_EVENT0("v8", "v8.Test3");
175 tracing_controller.StopTracing();
176
177 CHECK_EQ(2, writer->events().size());
178 CHECK_EQ("v8.Test", writer->events()[0]);
179 CHECK_EQ("v8.Test3", writer->events()[1]);
180
181 i::V8::SetPlatformForTesting(old_platform);
182 }
183
184 } // namespace tracing
185 } // namespace platform
186 } // namespace v8
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