dc9b817667
The patch is based on the previous one that was rolled out: https://code.google.com/p/v8/source/detail?r=12985 On Linux sampling for CPU profiler is initiated on the profiler event processor thread, other platforms to follow. CPU profiler continues to use SamplingCircularQueue, we will replave it with a single sample buffer when Mac and Win ports support profiling on the event processing thread. When --prof option is specified profiling is initiated either on the profiler event processor thread if CPU profiler is on or on the SignalSender thread as it used to if no CPU profiles are being collected. ProfilerEventsProcessor::ProcessEventsAndDoSample now waits in a tight loop, processing collected samples until sampling interval expires. To save CPU resources I'm planning to change that to use nanosleep as only one sample is expected in the queue at any point. BUG=v8:2364 Review URL: https://codereview.chromium.org/12321046 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13735 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
403 lines
14 KiB
C++
403 lines
14 KiB
C++
// Copyright 2010 the V8 project authors. All rights reserved.
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//
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// Tests of profiles generator and utilities.
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#include "v8.h"
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#include "cpu-profiler-inl.h"
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#include "cctest.h"
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#include "../include/v8-profiler.h"
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using i::CodeEntry;
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using i::CpuProfile;
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using i::CpuProfiler;
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using i::CpuProfilesCollection;
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using i::ProfileGenerator;
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using i::ProfileNode;
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using i::ProfilerEventsProcessor;
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using i::TokenEnumerator;
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TEST(StartStop) {
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CpuProfilesCollection profiles;
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ProfileGenerator generator(&profiles);
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ProfilerEventsProcessor processor(&generator, NULL, 100);
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processor.Start();
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processor.Stop();
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processor.Join();
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}
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static v8::Persistent<v8::Context> env;
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static void InitializeVM() {
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if (env.IsEmpty()) env = v8::Context::New();
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v8::HandleScope scope;
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env->Enter();
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}
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static inline i::Address ToAddress(int n) {
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return reinterpret_cast<i::Address>(n);
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}
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static void EnqueueTickSampleEvent(ProfilerEventsProcessor* proc,
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i::Address frame1,
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i::Address frame2 = NULL,
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i::Address frame3 = NULL) {
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i::TickSample* sample = proc->TickSampleEvent();
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sample->pc = frame1;
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sample->tos = frame1;
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sample->frames_count = 0;
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if (frame2 != NULL) {
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sample->stack[0] = frame2;
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sample->frames_count = 1;
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}
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if (frame3 != NULL) {
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sample->stack[1] = frame3;
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sample->frames_count = 2;
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}
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}
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namespace {
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class TestSetup {
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public:
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TestSetup()
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: old_flag_prof_browser_mode_(i::FLAG_prof_browser_mode) {
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i::FLAG_prof_browser_mode = false;
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}
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~TestSetup() {
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i::FLAG_prof_browser_mode = old_flag_prof_browser_mode_;
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}
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private:
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bool old_flag_prof_browser_mode_;
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};
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} // namespace
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TEST(CodeEvents) {
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InitializeVM();
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i::Isolate* isolate = i::Isolate::Current();
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i::Heap* heap = isolate->heap();
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i::Factory* factory = isolate->factory();
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TestSetup test_setup;
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CpuProfilesCollection profiles;
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profiles.StartProfiling("", 1);
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ProfileGenerator generator(&profiles);
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ProfilerEventsProcessor processor(&generator, NULL, 100);
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processor.Start();
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// Enqueue code creation events.
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i::HandleScope scope(isolate);
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const char* aaa_str = "aaa";
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i::Handle<i::String> aaa_name = factory->NewStringFromAscii(
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i::Vector<const char>(aaa_str, i::StrLength(aaa_str)));
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processor.CodeCreateEvent(i::Logger::FUNCTION_TAG,
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*aaa_name,
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heap->empty_string(),
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0,
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ToAddress(0x1000),
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0x100,
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ToAddress(0x10000));
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processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
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"bbb",
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ToAddress(0x1200),
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0x80);
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processor.CodeCreateEvent(i::Logger::STUB_TAG, 5, ToAddress(0x1300), 0x10);
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processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
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"ddd",
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ToAddress(0x1400),
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0x80);
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processor.CodeMoveEvent(ToAddress(0x1400), ToAddress(0x1500));
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processor.CodeCreateEvent(i::Logger::STUB_TAG, 3, ToAddress(0x1600), 0x10);
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processor.CodeCreateEvent(i::Logger::STUB_TAG, 4, ToAddress(0x1605), 0x10);
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// Enqueue a tick event to enable code events processing.
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EnqueueTickSampleEvent(&processor, ToAddress(0x1000));
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processor.Stop();
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processor.Join();
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// Check the state of profile generator.
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CodeEntry* entry1 = generator.code_map()->FindEntry(ToAddress(0x1000));
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CHECK_NE(NULL, entry1);
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CHECK_EQ(aaa_str, entry1->name());
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CodeEntry* entry2 = generator.code_map()->FindEntry(ToAddress(0x1200));
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CHECK_NE(NULL, entry2);
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CHECK_EQ("bbb", entry2->name());
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CodeEntry* entry3 = generator.code_map()->FindEntry(ToAddress(0x1300));
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CHECK_NE(NULL, entry3);
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CHECK_EQ("5", entry3->name());
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CHECK_EQ(NULL, generator.code_map()->FindEntry(ToAddress(0x1400)));
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CodeEntry* entry4 = generator.code_map()->FindEntry(ToAddress(0x1500));
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CHECK_NE(NULL, entry4);
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CHECK_EQ("ddd", entry4->name());
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CHECK_EQ(NULL, generator.code_map()->FindEntry(ToAddress(0x1600)));
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}
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template<typename T>
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static int CompareProfileNodes(const T* p1, const T* p2) {
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return strcmp((*p1)->entry()->name(), (*p2)->entry()->name());
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}
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TEST(TickEvents) {
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TestSetup test_setup;
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CpuProfilesCollection profiles;
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profiles.StartProfiling("", 1);
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ProfileGenerator generator(&profiles);
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ProfilerEventsProcessor processor(&generator, NULL, 100);
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processor.Start();
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processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
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"bbb",
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ToAddress(0x1200),
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0x80);
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processor.CodeCreateEvent(i::Logger::STUB_TAG, 5, ToAddress(0x1300), 0x10);
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processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
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"ddd",
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ToAddress(0x1400),
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0x80);
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EnqueueTickSampleEvent(&processor, ToAddress(0x1210));
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EnqueueTickSampleEvent(&processor, ToAddress(0x1305), ToAddress(0x1220));
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EnqueueTickSampleEvent(&processor,
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ToAddress(0x1404),
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ToAddress(0x1305),
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ToAddress(0x1230));
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processor.Stop();
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processor.Join();
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CpuProfile* profile =
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profiles.StopProfiling(TokenEnumerator::kNoSecurityToken, "", 1);
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CHECK_NE(NULL, profile);
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// Check call trees.
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const i::List<ProfileNode*>* top_down_root_children =
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profile->top_down()->root()->children();
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CHECK_EQ(1, top_down_root_children->length());
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CHECK_EQ("bbb", top_down_root_children->last()->entry()->name());
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const i::List<ProfileNode*>* top_down_bbb_children =
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top_down_root_children->last()->children();
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CHECK_EQ(1, top_down_bbb_children->length());
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CHECK_EQ("5", top_down_bbb_children->last()->entry()->name());
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const i::List<ProfileNode*>* top_down_stub_children =
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top_down_bbb_children->last()->children();
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CHECK_EQ(1, top_down_stub_children->length());
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CHECK_EQ("ddd", top_down_stub_children->last()->entry()->name());
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const i::List<ProfileNode*>* top_down_ddd_children =
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top_down_stub_children->last()->children();
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CHECK_EQ(0, top_down_ddd_children->length());
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const i::List<ProfileNode*>* bottom_up_root_children_unsorted =
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profile->bottom_up()->root()->children();
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CHECK_EQ(3, bottom_up_root_children_unsorted->length());
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i::List<ProfileNode*> bottom_up_root_children(3);
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bottom_up_root_children.AddAll(*bottom_up_root_children_unsorted);
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bottom_up_root_children.Sort(&CompareProfileNodes);
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CHECK_EQ("5", bottom_up_root_children[0]->entry()->name());
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CHECK_EQ("bbb", bottom_up_root_children[1]->entry()->name());
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CHECK_EQ("ddd", bottom_up_root_children[2]->entry()->name());
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const i::List<ProfileNode*>* bottom_up_stub_children =
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bottom_up_root_children[0]->children();
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CHECK_EQ(1, bottom_up_stub_children->length());
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CHECK_EQ("bbb", bottom_up_stub_children->last()->entry()->name());
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const i::List<ProfileNode*>* bottom_up_bbb_children =
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bottom_up_root_children[1]->children();
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CHECK_EQ(0, bottom_up_bbb_children->length());
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const i::List<ProfileNode*>* bottom_up_ddd_children =
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bottom_up_root_children[2]->children();
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CHECK_EQ(1, bottom_up_ddd_children->length());
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CHECK_EQ("5", bottom_up_ddd_children->last()->entry()->name());
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const i::List<ProfileNode*>* bottom_up_ddd_stub_children =
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bottom_up_ddd_children->last()->children();
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CHECK_EQ(1, bottom_up_ddd_stub_children->length());
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CHECK_EQ("bbb", bottom_up_ddd_stub_children->last()->entry()->name());
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}
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// http://crbug/51594
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// This test must not crash.
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TEST(CrashIfStoppingLastNonExistentProfile) {
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InitializeVM();
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TestSetup test_setup;
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CpuProfiler::SetUp();
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CpuProfiler::StartProfiling("1");
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CpuProfiler::StopProfiling("2");
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CpuProfiler::StartProfiling("1");
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CpuProfiler::StopProfiling("");
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CpuProfiler::TearDown();
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}
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// http://code.google.com/p/v8/issues/detail?id=1398
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// Long stacks (exceeding max frames limit) must not be erased.
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TEST(Issue1398) {
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TestSetup test_setup;
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CpuProfilesCollection profiles;
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profiles.StartProfiling("", 1);
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ProfileGenerator generator(&profiles);
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ProfilerEventsProcessor processor(&generator, NULL, 100);
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processor.Start();
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processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
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"bbb",
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ToAddress(0x1200),
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0x80);
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i::TickSample* sample = processor.TickSampleEvent();
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sample->pc = ToAddress(0x1200);
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sample->tos = 0;
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sample->frames_count = i::TickSample::kMaxFramesCount;
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for (int i = 0; i < sample->frames_count; ++i) {
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sample->stack[i] = ToAddress(0x1200);
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}
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processor.Stop();
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processor.Join();
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CpuProfile* profile =
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profiles.StopProfiling(TokenEnumerator::kNoSecurityToken, "", 1);
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CHECK_NE(NULL, profile);
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int actual_depth = 0;
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const ProfileNode* node = profile->top_down()->root();
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while (node->children()->length() > 0) {
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node = node->children()->last();
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++actual_depth;
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}
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CHECK_EQ(1 + i::TickSample::kMaxFramesCount, actual_depth); // +1 for PC.
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}
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TEST(DeleteAllCpuProfiles) {
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InitializeVM();
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TestSetup test_setup;
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CpuProfiler::SetUp();
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CHECK_EQ(0, CpuProfiler::GetProfilesCount());
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CpuProfiler::DeleteAllProfiles();
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CHECK_EQ(0, CpuProfiler::GetProfilesCount());
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CpuProfiler::StartProfiling("1");
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CpuProfiler::StopProfiling("1");
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CHECK_EQ(1, CpuProfiler::GetProfilesCount());
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CpuProfiler::DeleteAllProfiles();
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CHECK_EQ(0, CpuProfiler::GetProfilesCount());
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CpuProfiler::StartProfiling("1");
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CpuProfiler::StartProfiling("2");
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CpuProfiler::StopProfiling("2");
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CpuProfiler::StopProfiling("1");
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CHECK_EQ(2, CpuProfiler::GetProfilesCount());
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CpuProfiler::DeleteAllProfiles();
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CHECK_EQ(0, CpuProfiler::GetProfilesCount());
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// Test profiling cancellation by the 'delete' command.
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CpuProfiler::StartProfiling("1");
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CpuProfiler::StartProfiling("2");
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CHECK_EQ(0, CpuProfiler::GetProfilesCount());
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CpuProfiler::DeleteAllProfiles();
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CHECK_EQ(0, CpuProfiler::GetProfilesCount());
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CpuProfiler::TearDown();
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}
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TEST(DeleteCpuProfile) {
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v8::HandleScope scope;
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LocalContext env;
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CHECK_EQ(0, v8::CpuProfiler::GetProfilesCount());
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v8::Local<v8::String> name1 = v8::String::New("1");
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v8::CpuProfiler::StartProfiling(name1);
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const v8::CpuProfile* p1 = v8::CpuProfiler::StopProfiling(name1);
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CHECK_NE(NULL, p1);
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CHECK_EQ(1, v8::CpuProfiler::GetProfilesCount());
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unsigned uid1 = p1->GetUid();
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CHECK_EQ(p1, v8::CpuProfiler::FindProfile(uid1));
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const_cast<v8::CpuProfile*>(p1)->Delete();
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CHECK_EQ(0, CpuProfiler::GetProfilesCount());
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CHECK_EQ(NULL, v8::CpuProfiler::FindProfile(uid1));
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v8::Local<v8::String> name2 = v8::String::New("2");
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v8::CpuProfiler::StartProfiling(name2);
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const v8::CpuProfile* p2 = v8::CpuProfiler::StopProfiling(name2);
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CHECK_NE(NULL, p2);
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CHECK_EQ(1, v8::CpuProfiler::GetProfilesCount());
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unsigned uid2 = p2->GetUid();
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CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid2));
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CHECK_EQ(p2, v8::CpuProfiler::FindProfile(uid2));
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CHECK_EQ(NULL, v8::CpuProfiler::FindProfile(uid1));
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v8::Local<v8::String> name3 = v8::String::New("3");
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v8::CpuProfiler::StartProfiling(name3);
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const v8::CpuProfile* p3 = v8::CpuProfiler::StopProfiling(name3);
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CHECK_NE(NULL, p3);
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CHECK_EQ(2, v8::CpuProfiler::GetProfilesCount());
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unsigned uid3 = p3->GetUid();
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CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid3));
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CHECK_EQ(p3, v8::CpuProfiler::FindProfile(uid3));
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CHECK_EQ(NULL, v8::CpuProfiler::FindProfile(uid1));
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const_cast<v8::CpuProfile*>(p2)->Delete();
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CHECK_EQ(1, v8::CpuProfiler::GetProfilesCount());
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CHECK_EQ(NULL, v8::CpuProfiler::FindProfile(uid2));
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CHECK_EQ(p3, v8::CpuProfiler::FindProfile(uid3));
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const_cast<v8::CpuProfile*>(p3)->Delete();
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CHECK_EQ(0, CpuProfiler::GetProfilesCount());
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CHECK_EQ(NULL, v8::CpuProfiler::FindProfile(uid3));
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CHECK_EQ(NULL, v8::CpuProfiler::FindProfile(uid2));
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CHECK_EQ(NULL, v8::CpuProfiler::FindProfile(uid1));
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}
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TEST(DeleteCpuProfileDifferentTokens) {
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v8::HandleScope scope;
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LocalContext env;
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CHECK_EQ(0, v8::CpuProfiler::GetProfilesCount());
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v8::Local<v8::String> name1 = v8::String::New("1");
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v8::CpuProfiler::StartProfiling(name1);
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const v8::CpuProfile* p1 = v8::CpuProfiler::StopProfiling(name1);
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CHECK_NE(NULL, p1);
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CHECK_EQ(1, v8::CpuProfiler::GetProfilesCount());
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unsigned uid1 = p1->GetUid();
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CHECK_EQ(p1, v8::CpuProfiler::FindProfile(uid1));
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v8::Local<v8::String> token1 = v8::String::New("token1");
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const v8::CpuProfile* p1_t1 = v8::CpuProfiler::FindProfile(uid1, token1);
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CHECK_NE(NULL, p1_t1);
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CHECK_NE(p1, p1_t1);
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CHECK_EQ(1, v8::CpuProfiler::GetProfilesCount());
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const_cast<v8::CpuProfile*>(p1)->Delete();
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CHECK_EQ(0, CpuProfiler::GetProfilesCount());
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CHECK_EQ(NULL, v8::CpuProfiler::FindProfile(uid1));
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CHECK_EQ(NULL, v8::CpuProfiler::FindProfile(uid1, token1));
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const_cast<v8::CpuProfile*>(p1_t1)->Delete();
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CHECK_EQ(0, CpuProfiler::GetProfilesCount());
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v8::Local<v8::String> name2 = v8::String::New("2");
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v8::CpuProfiler::StartProfiling(name2);
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v8::Local<v8::String> token2 = v8::String::New("token2");
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const v8::CpuProfile* p2_t2 = v8::CpuProfiler::StopProfiling(name2, token2);
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CHECK_NE(NULL, p2_t2);
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CHECK_EQ(1, v8::CpuProfiler::GetProfilesCount());
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unsigned uid2 = p2_t2->GetUid();
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CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid2));
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const v8::CpuProfile* p2 = v8::CpuProfiler::FindProfile(uid2);
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CHECK_NE(p2_t2, p2);
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v8::Local<v8::String> name3 = v8::String::New("3");
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v8::CpuProfiler::StartProfiling(name3);
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const v8::CpuProfile* p3 = v8::CpuProfiler::StopProfiling(name3);
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CHECK_NE(NULL, p3);
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CHECK_EQ(2, v8::CpuProfiler::GetProfilesCount());
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unsigned uid3 = p3->GetUid();
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CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid3));
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CHECK_EQ(p3, v8::CpuProfiler::FindProfile(uid3));
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const_cast<v8::CpuProfile*>(p2_t2)->Delete();
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CHECK_EQ(1, v8::CpuProfiler::GetProfilesCount());
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CHECK_EQ(NULL, v8::CpuProfiler::FindProfile(uid2));
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CHECK_EQ(p3, v8::CpuProfiler::FindProfile(uid3));
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const_cast<v8::CpuProfile*>(p2)->Delete();
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CHECK_EQ(1, v8::CpuProfiler::GetProfilesCount());
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CHECK_EQ(NULL, v8::CpuProfiler::FindProfile(uid2));
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CHECK_EQ(p3, v8::CpuProfiler::FindProfile(uid3));
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const_cast<v8::CpuProfile*>(p3)->Delete();
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CHECK_EQ(0, CpuProfiler::GetProfilesCount());
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CHECK_EQ(NULL, v8::CpuProfiler::FindProfile(uid3));
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}
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