test/cctest/test-cpu-profiler.cc - platform/external/v8 - Git at Google

 // Copyright 2010 the V8 project authors. All rights reserved.
 //
 // Tests of profiles generator and utilities.

 #ifdef ENABLE_LOGGING_AND_PROFILING

 #include "v8.h"
 #include "cpu-profiler-inl.h"
 #include "cctest.h"

 namespace i = v8::internal;

 using i::CodeEntry;
 using i::CpuProfile;
 using i::CpuProfiler;
 using i::CpuProfilesCollection;
 using i::ProfileGenerator;
 using i::ProfileNode;
 using i::ProfilerEventsProcessor;
 using i::TokenEnumerator;


 TEST(StartStop) {
   CpuProfilesCollection profiles;
   ProfileGenerator generator(&profiles);
   ProfilerEventsProcessor processor(&generator);
   processor.Start();
   while (!processor.running()) {
     i::Thread::YieldCPU();
   }
   processor.Stop();
   processor.Join();
 }

 static v8::Persistent<v8::Context> env;

 static void InitializeVM() {
   if (env.IsEmpty()) env = v8::Context::New();
   v8::HandleScope scope;
   env->Enter();
 }

 static inline i::Address ToAddress(int n) {
   return reinterpret_cast<i::Address>(n);
 }

 static void EnqueueTickSampleEvent(ProfilerEventsProcessor* proc,
                                    i::Address frame1,
                                    i::Address frame2 = NULL,
                                    i::Address frame3 = NULL) {
   i::TickSample* sample = proc->TickSampleEvent();
   sample->pc = frame1;
   sample->function = frame1;
   sample->frames_count = 0;
   if (frame2 != NULL) {
     sample->stack[0] = frame2;
     sample->frames_count = 1;
   }
   if (frame3 != NULL) {
     sample->stack[1] = frame3;
     sample->frames_count = 2;
   }
 }

 namespace {

 class TestSetup {
  public:
   TestSetup()
       : old_flag_prof_browser_mode_(i::FLAG_prof_browser_mode) {
     i::FLAG_prof_browser_mode = false;
   }

   ~TestSetup() {
     i::FLAG_prof_browser_mode = old_flag_prof_browser_mode_;
   }

  private:
   bool old_flag_prof_browser_mode_;
 };

 }  // namespace

 TEST(CodeEvents) {
   InitializeVM();
   TestSetup test_setup;
   CpuProfilesCollection profiles;
   profiles.StartProfiling("", 1);
   ProfileGenerator generator(&profiles);
   ProfilerEventsProcessor processor(&generator);
   processor.Start();
   while (!processor.running()) {
     i::Thread::YieldCPU();
   }

   // Enqueue code creation events.
   i::HandleScope scope;
   const char* aaa_str = "aaa";
   i::Handle<i::String> aaa_name = i::Factory::NewStringFromAscii(
       i::Vector<const char>(aaa_str, i::StrLength(aaa_str)));
   processor.CodeCreateEvent(i::Logger::FUNCTION_TAG,
                             *aaa_name,
                             i::Heap::empty_string(),
                             0,
                             ToAddress(0x1000),
                             0x100);
   processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
                             "bbb",
                             ToAddress(0x1200),
                             0x80);
   processor.CodeCreateEvent(i::Logger::STUB_TAG, 5, ToAddress(0x1300), 0x10);
   processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
                             "ddd",
                             ToAddress(0x1400),
                             0x80);
   processor.CodeMoveEvent(ToAddress(0x1400), ToAddress(0x1500));
   processor.CodeCreateEvent(i::Logger::STUB_TAG, 3, ToAddress(0x1600), 0x10);
   processor.CodeDeleteEvent(ToAddress(0x1600));
   processor.FunctionCreateEvent(ToAddress(0x1700), ToAddress(0x1000),
                                 TokenEnumerator::kNoSecurityToken);
   // Enqueue a tick event to enable code events processing.
   EnqueueTickSampleEvent(&processor, ToAddress(0x1000));

   processor.Stop();
   processor.Join();

   // Check the state of profile generator.
   CodeEntry* entry1 = generator.code_map()->FindEntry(ToAddress(0x1000));
   CHECK_NE(NULL, entry1);
   CHECK_EQ(aaa_str, entry1->name());
   CodeEntry* entry2 = generator.code_map()->FindEntry(ToAddress(0x1200));
   CHECK_NE(NULL, entry2);
   CHECK_EQ("bbb", entry2->name());
   CodeEntry* entry3 = generator.code_map()->FindEntry(ToAddress(0x1300));
   CHECK_NE(NULL, entry3);
   CHECK_EQ("5", entry3->name());
   CHECK_EQ(NULL, generator.code_map()->FindEntry(ToAddress(0x1400)));
   CodeEntry* entry4 = generator.code_map()->FindEntry(ToAddress(0x1500));
   CHECK_NE(NULL, entry4);
   CHECK_EQ("ddd", entry4->name());
   CHECK_EQ(NULL, generator.code_map()->FindEntry(ToAddress(0x1600)));
   CodeEntry* entry5 = generator.code_map()->FindEntry(ToAddress(0x1700));
   CHECK_NE(NULL, entry5);
   CHECK_EQ(aaa_str, entry5->name());
 }


 template<typename T>
 static int CompareProfileNodes(const T* p1, const T* p2) {
   return strcmp((*p1)->entry()->name(), (*p2)->entry()->name());
 }

 TEST(TickEvents) {
   TestSetup test_setup;
   CpuProfilesCollection profiles;
   profiles.StartProfiling("", 1);
   ProfileGenerator generator(&profiles);
   ProfilerEventsProcessor processor(&generator);
   processor.Start();
   while (!processor.running()) {
     i::Thread::YieldCPU();
   }

   processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
                             "bbb",
                             ToAddress(0x1200),
                             0x80);
   processor.CodeCreateEvent(i::Logger::STUB_TAG, 5, ToAddress(0x1300), 0x10);
   processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
                             "ddd",
                             ToAddress(0x1400),
                             0x80);
   EnqueueTickSampleEvent(&processor, ToAddress(0x1210));
   EnqueueTickSampleEvent(&processor, ToAddress(0x1305), ToAddress(0x1220));
   EnqueueTickSampleEvent(&processor,
                          ToAddress(0x1404),
                          ToAddress(0x1305),
                          ToAddress(0x1230));

   processor.Stop();
   processor.Join();
   CpuProfile* profile =
       profiles.StopProfiling(TokenEnumerator::kNoSecurityToken, "", 1);
   CHECK_NE(NULL, profile);

   // Check call trees.
   const i::List<ProfileNode*>* top_down_root_children =
       profile->top_down()->root()->children();
   CHECK_EQ(1, top_down_root_children->length());
   CHECK_EQ("bbb", top_down_root_children->last()->entry()->name());
   const i::List<ProfileNode*>* top_down_bbb_children =
       top_down_root_children->last()->children();
   CHECK_EQ(1, top_down_bbb_children->length());
   CHECK_EQ("5", top_down_bbb_children->last()->entry()->name());
   const i::List<ProfileNode*>* top_down_stub_children =
       top_down_bbb_children->last()->children();
   CHECK_EQ(1, top_down_stub_children->length());
   CHECK_EQ("ddd", top_down_stub_children->last()->entry()->name());
   const i::List<ProfileNode*>* top_down_ddd_children =
       top_down_stub_children->last()->children();
   CHECK_EQ(0, top_down_ddd_children->length());

   const i::List<ProfileNode*>* bottom_up_root_children_unsorted =
       profile->bottom_up()->root()->children();
   CHECK_EQ(3, bottom_up_root_children_unsorted->length());
   i::List<ProfileNode*> bottom_up_root_children(3);
   bottom_up_root_children.AddAll(*bottom_up_root_children_unsorted);
   bottom_up_root_children.Sort(&CompareProfileNodes);
   CHECK_EQ("5", bottom_up_root_children[0]->entry()->name());
   CHECK_EQ("bbb", bottom_up_root_children[1]->entry()->name());
   CHECK_EQ("ddd", bottom_up_root_children[2]->entry()->name());
   const i::List<ProfileNode*>* bottom_up_stub_children =
       bottom_up_root_children[0]->children();
   CHECK_EQ(1, bottom_up_stub_children->length());
   CHECK_EQ("bbb", bottom_up_stub_children->last()->entry()->name());
   const i::List<ProfileNode*>* bottom_up_bbb_children =
       bottom_up_root_children[1]->children();
   CHECK_EQ(0, bottom_up_bbb_children->length());
   const i::List<ProfileNode*>* bottom_up_ddd_children =
       bottom_up_root_children[2]->children();
   CHECK_EQ(1, bottom_up_ddd_children->length());
   CHECK_EQ("5", bottom_up_ddd_children->last()->entry()->name());
   const i::List<ProfileNode*>* bottom_up_ddd_stub_children =
       bottom_up_ddd_children->last()->children();
   CHECK_EQ(1, bottom_up_ddd_stub_children->length());
   CHECK_EQ("bbb", bottom_up_ddd_stub_children->last()->entry()->name());
 }


 // http://crbug/51594
 // This test must not crash.
 TEST(CrashIfStoppingLastNonExistentProfile) {
   InitializeVM();
   TestSetup test_setup;
   CpuProfiler::Setup();
   CpuProfiler::StartProfiling("1");
   CpuProfiler::StopProfiling("2");
   CpuProfiler::StartProfiling("1");
   CpuProfiler::StopProfiling("");
   CpuProfiler::TearDown();
 }

 #endif  // ENABLE_LOGGING_AND_PROFILING
	// Copyright 2010 the V8 project authors. All rights reserved.
	//
	// Tests of profiles generator and utilities.

	#ifdef ENABLE_LOGGING_AND_PROFILING

	#include "v8.h"
	#include "cpu-profiler-inl.h"
	#include "cctest.h"

	namespace i = v8::internal;

	using i::CodeEntry;
	using i::CpuProfile;
	using i::CpuProfiler;
	using i::CpuProfilesCollection;
	using i::ProfileGenerator;
	using i::ProfileNode;
	using i::ProfilerEventsProcessor;
	using i::TokenEnumerator;


	TEST(StartStop) {
	CpuProfilesCollection profiles;
	ProfileGenerator generator(&profiles);
	ProfilerEventsProcessor processor(&generator);
	processor.Start();
	while (!processor.running()) {
	i::Thread::YieldCPU();
	}
	processor.Stop();
	processor.Join();
	}

	static v8::Persistent<v8::Context> env;

	static void InitializeVM() {
	if (env.IsEmpty()) env = v8::Context::New();
	v8::HandleScope scope;
	env->Enter();
	}

	static inline i::Address ToAddress(int n) {
	return reinterpret_cast<i::Address>(n);
	}

	static void EnqueueTickSampleEvent(ProfilerEventsProcessor* proc,
	i::Address frame1,
	i::Address frame2 = NULL,
	i::Address frame3 = NULL) {
	i::TickSample* sample = proc->TickSampleEvent();
	sample->pc = frame1;
	sample->function = frame1;
	sample->frames_count = 0;
	if (frame2 != NULL) {
	sample->stack[0] = frame2;
	sample->frames_count = 1;
	}
	if (frame3 != NULL) {
	sample->stack[1] = frame3;
	sample->frames_count = 2;
	}
	}

	namespace {

	class TestSetup {
	public:
	TestSetup()
	: old_flag_prof_browser_mode_(i::FLAG_prof_browser_mode) {
	i::FLAG_prof_browser_mode = false;
	}

	~TestSetup() {
	i::FLAG_prof_browser_mode = old_flag_prof_browser_mode_;
	}

	private:
	bool old_flag_prof_browser_mode_;
	};

	} // namespace

	TEST(CodeEvents) {
	InitializeVM();
	TestSetup test_setup;
	CpuProfilesCollection profiles;
	profiles.StartProfiling("", 1);
	ProfileGenerator generator(&profiles);
	ProfilerEventsProcessor processor(&generator);
	processor.Start();
	while (!processor.running()) {
	i::Thread::YieldCPU();
	}

	// Enqueue code creation events.
	i::HandleScope scope;
	const char* aaa_str = "aaa";
	i::Handle<i::String> aaa_name = i::Factory::NewStringFromAscii(
	i::Vector<const char>(aaa_str, i::StrLength(aaa_str)));
	processor.CodeCreateEvent(i::Logger::FUNCTION_TAG,
	*aaa_name,
	i::Heap::empty_string(),
	0,
	ToAddress(0x1000),
	0x100);
	processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
	"bbb",
	ToAddress(0x1200),
	0x80);
	processor.CodeCreateEvent(i::Logger::STUB_TAG, 5, ToAddress(0x1300), 0x10);
	processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
	"ddd",
	ToAddress(0x1400),
	0x80);
	processor.CodeMoveEvent(ToAddress(0x1400), ToAddress(0x1500));
	processor.CodeCreateEvent(i::Logger::STUB_TAG, 3, ToAddress(0x1600), 0x10);
	processor.CodeDeleteEvent(ToAddress(0x1600));
	processor.FunctionCreateEvent(ToAddress(0x1700), ToAddress(0x1000),
	TokenEnumerator::kNoSecurityToken);
	// Enqueue a tick event to enable code events processing.
	EnqueueTickSampleEvent(&processor, ToAddress(0x1000));

	processor.Stop();
	processor.Join();

	// Check the state of profile generator.
	CodeEntry* entry1 = generator.code_map()->FindEntry(ToAddress(0x1000));
	CHECK_NE(NULL, entry1);
	CHECK_EQ(aaa_str, entry1->name());
	CodeEntry* entry2 = generator.code_map()->FindEntry(ToAddress(0x1200));
	CHECK_NE(NULL, entry2);
	CHECK_EQ("bbb", entry2->name());
	CodeEntry* entry3 = generator.code_map()->FindEntry(ToAddress(0x1300));
	CHECK_NE(NULL, entry3);
	CHECK_EQ("5", entry3->name());
	CHECK_EQ(NULL, generator.code_map()->FindEntry(ToAddress(0x1400)));
	CodeEntry* entry4 = generator.code_map()->FindEntry(ToAddress(0x1500));
	CHECK_NE(NULL, entry4);
	CHECK_EQ("ddd", entry4->name());
	CHECK_EQ(NULL, generator.code_map()->FindEntry(ToAddress(0x1600)));
	CodeEntry* entry5 = generator.code_map()->FindEntry(ToAddress(0x1700));
	CHECK_NE(NULL, entry5);
	CHECK_EQ(aaa_str, entry5->name());
	}


	template<typename T>
	static int CompareProfileNodes(const T* p1, const T* p2) {
	return strcmp((p1)->entry()->name(), (p2)->entry()->name());
	}

	TEST(TickEvents) {
	TestSetup test_setup;
	CpuProfilesCollection profiles;
	profiles.StartProfiling("", 1);
	ProfileGenerator generator(&profiles);
	ProfilerEventsProcessor processor(&generator);
	processor.Start();
	while (!processor.running()) {
	i::Thread::YieldCPU();
	}

	processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
	"bbb",
	ToAddress(0x1200),
	0x80);
	processor.CodeCreateEvent(i::Logger::STUB_TAG, 5, ToAddress(0x1300), 0x10);
	processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
	"ddd",
	ToAddress(0x1400),
	0x80);
	EnqueueTickSampleEvent(&processor, ToAddress(0x1210));
	EnqueueTickSampleEvent(&processor, ToAddress(0x1305), ToAddress(0x1220));
	EnqueueTickSampleEvent(&processor,
	ToAddress(0x1404),
	ToAddress(0x1305),
	ToAddress(0x1230));

	processor.Stop();
	processor.Join();
	CpuProfile* profile =
	profiles.StopProfiling(TokenEnumerator::kNoSecurityToken, "", 1);
	CHECK_NE(NULL, profile);

	// Check call trees.
	const i::List<ProfileNode> top_down_root_children =
	profile->top_down()->root()->children();
	CHECK_EQ(1, top_down_root_children->length());
	CHECK_EQ("bbb", top_down_root_children->last()->entry()->name());
	const i::List<ProfileNode> top_down_bbb_children =
	top_down_root_children->last()->children();
	CHECK_EQ(1, top_down_bbb_children->length());
	CHECK_EQ("5", top_down_bbb_children->last()->entry()->name());
	const i::List<ProfileNode> top_down_stub_children =
	top_down_bbb_children->last()->children();
	CHECK_EQ(1, top_down_stub_children->length());
	CHECK_EQ("ddd", top_down_stub_children->last()->entry()->name());
	const i::List<ProfileNode> top_down_ddd_children =
	top_down_stub_children->last()->children();
	CHECK_EQ(0, top_down_ddd_children->length());

	const i::List<ProfileNode> bottom_up_root_children_unsorted =
	profile->bottom_up()->root()->children();
	CHECK_EQ(3, bottom_up_root_children_unsorted->length());
	i::List<ProfileNode*> bottom_up_root_children(3);
	bottom_up_root_children.AddAll(*bottom_up_root_children_unsorted);
	bottom_up_root_children.Sort(&CompareProfileNodes);
	CHECK_EQ("5", bottom_up_root_children[0]->entry()->name());
	CHECK_EQ("bbb", bottom_up_root_children[1]->entry()->name());
	CHECK_EQ("ddd", bottom_up_root_children[2]->entry()->name());
	const i::List<ProfileNode> bottom_up_stub_children =
	bottom_up_root_children[0]->children();
	CHECK_EQ(1, bottom_up_stub_children->length());
	CHECK_EQ("bbb", bottom_up_stub_children->last()->entry()->name());
	const i::List<ProfileNode> bottom_up_bbb_children =
	bottom_up_root_children[1]->children();
	CHECK_EQ(0, bottom_up_bbb_children->length());
	const i::List<ProfileNode> bottom_up_ddd_children =
	bottom_up_root_children[2]->children();
	CHECK_EQ(1, bottom_up_ddd_children->length());
	CHECK_EQ("5", bottom_up_ddd_children->last()->entry()->name());
	const i::List<ProfileNode> bottom_up_ddd_stub_children =
	bottom_up_ddd_children->last()->children();
	CHECK_EQ(1, bottom_up_ddd_stub_children->length());
	CHECK_EQ("bbb", bottom_up_ddd_stub_children->last()->entry()->name());
	}


	// http://crbug/51594
	// This test must not crash.
	TEST(CrashIfStoppingLastNonExistentProfile) {
	InitializeVM();
	TestSetup test_setup;
	CpuProfiler::Setup();
	CpuProfiler::StartProfiling("1");
	CpuProfiler::StopProfiling("2");
	CpuProfiler::StartProfiling("1");
	CpuProfiler::StopProfiling("");
	CpuProfiler::TearDown();
	}

	#endif // ENABLE_LOGGING_AND_PROFILING