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v8/test/cctest/test-cpu-profiler.cc
bmeurer@chromium.org 274f254236 Revert "Return start/end profiling time in microseconds instead of milliseconds" 
This reverts r16049 for breaking build on windows.

TBR=svenpanne@chromium.org,machenbach@chromium.org

Review URL: https://codereview.chromium.org/22189002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16050 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 12:27:12 +00:00

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// Copyright 2010 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Tests of profiles generator and utilities.
#include "v8.h"
#include "cpu-profiler-inl.h"
#include "cctest.h"
#include "platform.h"
#include "utils.h"
#include "../include/v8-profiler.h"
using i::CodeEntry;
using i::CpuProfile;
using i::CpuProfiler;
using i::CpuProfilesCollection;
using i::Heap;
using i::ProfileGenerator;
using i::ProfileNode;
using i::ProfilerEventsProcessor;
using i::ScopedVector;
using i::Vector;
TEST(StartStop) {
CpuProfilesCollection profiles;
ProfileGenerator generator(&profiles);
ProfilerEventsProcessor processor(&generator);
processor.Start();
processor.StopSynchronously();
processor.Join();
}
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->tos = 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
i::Code* CreateCode(LocalContext* env) {
static int counter = 0;
i::EmbeddedVector<char, 256> script;
i::EmbeddedVector<char, 32> name;
i::OS::SNPrintF(name, "function_%d", ++counter);
const char* name_start = name.start();
i::OS::SNPrintF(script,
"function %s() {\n"
"var counter = 0;\n"
"for (var i = 0; i < %d; ++i) counter += i;\n"
"return '%s_' + counter;\n"
"}\n"
"%s();\n", name_start, counter, name_start, name_start);
CompileRun(script.start());
i::Handle<i::JSFunction> fun = v8::Utils::OpenHandle(
*v8::Local<v8::Function>::Cast(
(*env)->Global()->Get(v8_str(name_start))));
return fun->code();
}
TEST(CodeEvents) {
CcTest::InitializeVM();
LocalContext env;
i::Isolate* isolate = i::Isolate::Current();
i::Factory* factory = isolate->factory();
TestSetup test_setup;
i::HandleScope scope(isolate);
i::Code* aaa_code = CreateCode(&env);
i::Code* comment_code = CreateCode(&env);
i::Code* args5_code = CreateCode(&env);
i::Code* comment2_code = CreateCode(&env);
i::Code* moved_code = CreateCode(&env);
i::Code* args3_code = CreateCode(&env);
i::Code* args4_code = CreateCode(&env);
CpuProfilesCollection* profiles = new CpuProfilesCollection;
profiles->StartProfiling("", 1, false);
ProfileGenerator generator(profiles);
ProfilerEventsProcessor processor(&generator);
processor.Start();
CpuProfiler profiler(isolate, profiles, &generator, &processor);
// Enqueue code creation events.
const char* aaa_str = "aaa";
i::Handle<i::String> aaa_name = factory->NewStringFromAscii(
i::Vector<const char>(aaa_str, i::StrLength(aaa_str)));
profiler.CodeCreateEvent(i::Logger::FUNCTION_TAG, aaa_code, *aaa_name);
profiler.CodeCreateEvent(i::Logger::BUILTIN_TAG, comment_code, "comment");
profiler.CodeCreateEvent(i::Logger::STUB_TAG, args5_code, 5);
profiler.CodeCreateEvent(i::Logger::BUILTIN_TAG, comment2_code, "comment2");
profiler.CodeMoveEvent(comment2_code->address(), moved_code->address());
profiler.CodeCreateEvent(i::Logger::STUB_TAG, args3_code, 3);
profiler.CodeCreateEvent(i::Logger::STUB_TAG, args4_code, 4);
// Enqueue a tick event to enable code events processing.
EnqueueTickSampleEvent(&processor, aaa_code->address());
processor.StopSynchronously();
processor.Join();
// Check the state of profile generator.
CodeEntry* aaa = generator.code_map()->FindEntry(aaa_code->address());
CHECK_NE(NULL, aaa);
CHECK_EQ(aaa_str, aaa->name());
CodeEntry* comment = generator.code_map()->FindEntry(comment_code->address());
CHECK_NE(NULL, comment);
CHECK_EQ("comment", comment->name());
CodeEntry* args5 = generator.code_map()->FindEntry(args5_code->address());
CHECK_NE(NULL, args5);
CHECK_EQ("5", args5->name());
CHECK_EQ(NULL, generator.code_map()->FindEntry(comment2_code->address()));
CodeEntry* comment2 = generator.code_map()->FindEntry(moved_code->address());
CHECK_NE(NULL, comment2);
CHECK_EQ("comment2", comment2->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;
LocalContext env;
i::Isolate* isolate = i::Isolate::Current();
i::HandleScope scope(isolate);
i::Code* frame1_code = CreateCode(&env);
i::Code* frame2_code = CreateCode(&env);
i::Code* frame3_code = CreateCode(&env);
CpuProfilesCollection* profiles = new CpuProfilesCollection;
profiles->StartProfiling("", 1, false);
ProfileGenerator generator(profiles);
ProfilerEventsProcessor processor(&generator);
processor.Start();
CpuProfiler profiler(isolate, profiles, &generator, &processor);
profiler.CodeCreateEvent(i::Logger::BUILTIN_TAG, frame1_code, "bbb");
profiler.CodeCreateEvent(i::Logger::STUB_TAG, frame2_code, 5);
profiler.CodeCreateEvent(i::Logger::BUILTIN_TAG, frame3_code, "ddd");
EnqueueTickSampleEvent(&processor, frame1_code->instruction_start());
EnqueueTickSampleEvent(
&processor,
frame2_code->instruction_start() + frame2_code->ExecutableSize() / 2,
frame1_code->instruction_start() + frame2_code->ExecutableSize() / 2);
EnqueueTickSampleEvent(
&processor,
frame3_code->instruction_end() - 1,
frame2_code->instruction_end() - 1,
frame1_code->instruction_end() - 1);
processor.StopSynchronously();
processor.Join();
CpuProfile* profile = profiles->StopProfiling("");
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());
}
// http://crbug/51594
// This test must not crash.
TEST(CrashIfStoppingLastNonExistentProfile) {
CcTest::InitializeVM();
TestSetup test_setup;
CpuProfiler* profiler = i::Isolate::Current()->cpu_profiler();
profiler->StartProfiling("1");
profiler->StopProfiling("2");
profiler->StartProfiling("1");
profiler->StopProfiling("");
}
// http://code.google.com/p/v8/issues/detail?id=1398
// Long stacks (exceeding max frames limit) must not be erased.
TEST(Issue1398) {
TestSetup test_setup;
LocalContext env;
i::Isolate* isolate = i::Isolate::Current();
i::HandleScope scope(isolate);
i::Code* code = CreateCode(&env);
CpuProfilesCollection* profiles = new CpuProfilesCollection;
profiles->StartProfiling("", 1, false);
ProfileGenerator generator(profiles);
ProfilerEventsProcessor processor(&generator);
processor.Start();
CpuProfiler profiler(isolate, profiles, &generator, &processor);
profiler.CodeCreateEvent(i::Logger::BUILTIN_TAG, code, "bbb");
i::TickSample* sample = processor.TickSampleEvent();
sample->pc = code->address();
sample->tos = 0;
sample->frames_count = i::TickSample::kMaxFramesCount;
for (int i = 0; i < sample->frames_count; ++i) {
sample->stack[i] = code->address();
}
processor.StopSynchronously();
processor.Join();
CpuProfile* profile = profiles->StopProfiling("");
CHECK_NE(NULL, profile);
int actual_depth = 0;
const ProfileNode* node = profile->top_down()->root();
while (node->children()->length() > 0) {
node = node->children()->last();
++actual_depth;
}
CHECK_EQ(1 + i::TickSample::kMaxFramesCount, actual_depth); // +1 for PC.
}
TEST(DeleteAllCpuProfiles) {
CcTest::InitializeVM();
TestSetup test_setup;
CpuProfiler* profiler = i::Isolate::Current()->cpu_profiler();
CHECK_EQ(0, profiler->GetProfilesCount());
profiler->DeleteAllProfiles();
CHECK_EQ(0, profiler->GetProfilesCount());
profiler->StartProfiling("1");
profiler->StopProfiling("1");
CHECK_EQ(1, profiler->GetProfilesCount());
profiler->DeleteAllProfiles();
CHECK_EQ(0, profiler->GetProfilesCount());
profiler->StartProfiling("1");
profiler->StartProfiling("2");
profiler->StopProfiling("2");
profiler->StopProfiling("1");
CHECK_EQ(2, profiler->GetProfilesCount());
profiler->DeleteAllProfiles();
CHECK_EQ(0, profiler->GetProfilesCount());
// Test profiling cancellation by the 'delete' command.
profiler->StartProfiling("1");
profiler->StartProfiling("2");
CHECK_EQ(0, profiler->GetProfilesCount());
profiler->DeleteAllProfiles();
CHECK_EQ(0, profiler->GetProfilesCount());
}
static const v8::CpuProfile* FindCpuProfile(v8::CpuProfiler* profiler,
unsigned uid) {
int length = profiler->GetProfileCount();
for (int i = 0; i < length; i++) {
const v8::CpuProfile* profile = profiler->GetCpuProfile(i);
if (profile->GetUid() == uid) {
return profile;
}
}
return NULL;
}
TEST(DeleteCpuProfile) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
CHECK_EQ(0, cpu_profiler->GetProfileCount());
v8::Local<v8::String> name1 = v8::String::New("1");
cpu_profiler->StartCpuProfiling(name1);
const v8::CpuProfile* p1 = cpu_profiler->StopCpuProfiling(name1);
CHECK_NE(NULL, p1);
CHECK_EQ(1, cpu_profiler->GetProfileCount());
unsigned uid1 = p1->GetUid();
CHECK_EQ(p1, FindCpuProfile(cpu_profiler, uid1));
const_cast<v8::CpuProfile*>(p1)->Delete();
CHECK_EQ(0, cpu_profiler->GetProfileCount());
CHECK_EQ(NULL, FindCpuProfile(cpu_profiler, uid1));
v8::Local<v8::String> name2 = v8::String::New("2");
cpu_profiler->StartCpuProfiling(name2);
const v8::CpuProfile* p2 = cpu_profiler->StopCpuProfiling(name2);
CHECK_NE(NULL, p2);
CHECK_EQ(1, cpu_profiler->GetProfileCount());
unsigned uid2 = p2->GetUid();
CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid2));
CHECK_EQ(p2, FindCpuProfile(cpu_profiler, uid2));
CHECK_EQ(NULL, FindCpuProfile(cpu_profiler, uid1));
v8::Local<v8::String> name3 = v8::String::New("3");
cpu_profiler->StartCpuProfiling(name3);
const v8::CpuProfile* p3 = cpu_profiler->StopCpuProfiling(name3);
CHECK_NE(NULL, p3);
CHECK_EQ(2, cpu_profiler->GetProfileCount());
unsigned uid3 = p3->GetUid();
CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid3));
CHECK_EQ(p3, FindCpuProfile(cpu_profiler, uid3));
CHECK_EQ(NULL, FindCpuProfile(cpu_profiler, uid1));
const_cast<v8::CpuProfile*>(p2)->Delete();
CHECK_EQ(1, cpu_profiler->GetProfileCount());
CHECK_EQ(NULL, FindCpuProfile(cpu_profiler, uid2));
CHECK_EQ(p3, FindCpuProfile(cpu_profiler, uid3));
const_cast<v8::CpuProfile*>(p3)->Delete();
CHECK_EQ(0, cpu_profiler->GetProfileCount());
CHECK_EQ(NULL, FindCpuProfile(cpu_profiler, uid3));
CHECK_EQ(NULL, FindCpuProfile(cpu_profiler, uid2));
CHECK_EQ(NULL, FindCpuProfile(cpu_profiler, uid1));
}
TEST(GetProfilerWhenIsolateIsNotInitialized) {
v8::Isolate* isolate = v8::Isolate::GetCurrent();
CHECK(i::Isolate::Current()->IsDefaultIsolate());
CHECK(!i::Isolate::Current()->IsInitialized());
CHECK_EQ(NULL, isolate->GetCpuProfiler());
{
v8::Isolate::Scope isolateScope(isolate);
LocalContext env;
v8::HandleScope scope(isolate);
CHECK_NE(NULL, isolate->GetCpuProfiler());
isolate->GetCpuProfiler()->StartCpuProfiling(v8::String::New("Test"));
isolate->GetCpuProfiler()->StopCpuProfiling(v8::String::New("Test"));
}
CHECK(i::Isolate::Current()->IsInitialized());
CHECK_NE(NULL, isolate->GetCpuProfiler());
isolate->Dispose();
CHECK_EQ(NULL, isolate->GetCpuProfiler());
}
TEST(ProfileStartEndTime) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
double time_before_profiling = i::OS::TimeCurrentMillis();
v8::Local<v8::String> profile_name = v8::String::New("test");
cpu_profiler->StartCpuProfiling(profile_name);
const v8::CpuProfile* profile = cpu_profiler->StopCpuProfiling(profile_name);
CHECK(time_before_profiling <= profile->GetStartTime());
CHECK(profile->GetStartTime() <= profile->GetEndTime());
CHECK(profile->GetEndTime() <= i::OS::TimeCurrentMillis());
}
static const v8::CpuProfile* RunProfiler(
LocalContext& env, v8::Handle<v8::Function> function,
v8::Handle<v8::Value> argv[], int argc,
unsigned min_js_samples) {
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
v8::Local<v8::String> profile_name = v8::String::New("my_profile");
cpu_profiler->StartCpuProfiling(profile_name);
i::Sampler* sampler =
reinterpret_cast<i::Isolate*>(env->GetIsolate())->logger()->sampler();
sampler->StartCountingSamples();
do {
function->Call(env->Global(), argc, argv);
} while (sampler->js_and_external_sample_count() < min_js_samples);
const v8::CpuProfile* profile = cpu_profiler->StopCpuProfiling(profile_name);
CHECK_NE(NULL, profile);
// Dump collected profile to have a better diagnostic in case of failure.
reinterpret_cast<i::CpuProfile*>(
const_cast<v8::CpuProfile*>(profile))->Print();
return profile;
}
static bool ContainsString(v8::Handle<v8::String> string,
const Vector<v8::Handle<v8::String> >& vector) {
for (int i = 0; i < vector.length(); i++) {
if (string->Equals(vector[i]))
return true;
}
return false;
}
static void CheckChildrenNames(const v8::CpuProfileNode* node,
const Vector<v8::Handle<v8::String> >& names) {
int count = node->GetChildrenCount();
for (int i = 0; i < count; i++) {
v8::Handle<v8::String> name = node->GetChild(i)->GetFunctionName();
CHECK(ContainsString(name, names));
// Check that there are no duplicates.
for (int j = 0; j < count; j++) {
if (j == i) continue;
CHECK_NE(name, node->GetChild(j)->GetFunctionName());
}
}
}
static const v8::CpuProfileNode* FindChild(const v8::CpuProfileNode* node,
const char* name) {
int count = node->GetChildrenCount();
v8::Handle<v8::String> nameHandle = v8::String::New(name);
for (int i = 0; i < count; i++) {
const v8::CpuProfileNode* child = node->GetChild(i);
if (nameHandle->Equals(child->GetFunctionName())) return child;
}
return NULL;
}
static const v8::CpuProfileNode* GetChild(const v8::CpuProfileNode* node,
const char* name) {
const v8::CpuProfileNode* result = FindChild(node, name);
CHECK(result);
return result;
}
static void CheckSimpleBranch(const v8::CpuProfileNode* node,
const char* names[], int length) {
for (int i = 0; i < length; i++) {
const char* name = names[i];
node = GetChild(node, name);
int expectedChildrenCount = (i == length - 1) ? 0 : 1;
CHECK_EQ(expectedChildrenCount, node->GetChildrenCount());
}
}
static const char* cpu_profiler_test_source = "function loop(timeout) {\n"
" this.mmm = 0;\n"
" var start = Date.now();\n"
" while (Date.now() - start < timeout) {\n"
" var n = 100*1000;\n"
" while(n > 1) {\n"
" n--;\n"
" this.mmm += n * n * n;\n"
" }\n"
" }\n"
"}\n"
"function delay() { try { loop(10); } catch(e) { } }\n"
"function bar() { delay(); }\n"
"function baz() { delay(); }\n"
"function foo() {\n"
" try {\n"
" delay();\n"
" bar();\n"
" delay();\n"
" baz();\n"
" } catch (e) { }\n"
"}\n"
"function start(timeout) {\n"
" var start = Date.now();\n"
" do {\n"
" foo();\n"
" var duration = Date.now() - start;\n"
" } while (duration < timeout);\n"
" return duration;\n"
"}\n";
// Check that the profile tree for the script above will look like the
// following:
//
// [Top down]:
// 1062 0 (root) [-1]
// 1054 0 start [-1]
// 1054 1 foo [-1]
// 265 0 baz [-1]
// 265 1 delay [-1]
// 264 264 loop [-1]
// 525 3 delay [-1]
// 522 522 loop [-1]
// 263 0 bar [-1]
// 263 1 delay [-1]
// 262 262 loop [-1]
// 2 2 (program) [-1]
// 6 6 (garbage collector) [-1]
TEST(CollectCpuProfile) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::Script::Compile(v8::String::New(cpu_profiler_test_source))->Run();
v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("start")));
int32_t profiling_interval_ms = 200;
v8::Handle<v8::Value> args[] = { v8::Integer::New(profiling_interval_ms) };
const v8::CpuProfile* profile =
RunProfiler(env, function, args, ARRAY_SIZE(args), 200);
function->Call(env->Global(), ARRAY_SIZE(args), args);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8::String::New(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8::String::New(ProfileGenerator::kProgramEntryName);
names[2] = v8::String::New("start");
CheckChildrenNames(root, names);
const v8::CpuProfileNode* startNode = GetChild(root, "start");
CHECK_EQ(1, startNode->GetChildrenCount());
const v8::CpuProfileNode* fooNode = GetChild(startNode, "foo");
CHECK_EQ(3, fooNode->GetChildrenCount());
const char* barBranch[] = { "bar", "delay", "loop" };
CheckSimpleBranch(fooNode, barBranch, ARRAY_SIZE(barBranch));
const char* bazBranch[] = { "baz", "delay", "loop" };
CheckSimpleBranch(fooNode, bazBranch, ARRAY_SIZE(bazBranch));
const char* delayBranch[] = { "delay", "loop" };
CheckSimpleBranch(fooNode, delayBranch, ARRAY_SIZE(delayBranch));
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
cpu_profiler->DeleteAllCpuProfiles();
}
static const char* cpu_profiler_test_source2 = "function loop() {}\n"
"function delay() { loop(); }\n"
"function start(count) {\n"
" var k = 0;\n"
" do {\n"
" delay();\n"
" } while (++k < count*100*1000);\n"
"}\n";
// Check that the profile tree doesn't contain unexpecte traces:
// - 'loop' can be called only by 'delay'
// - 'delay' may be called only by 'start'
// The profile will look like the following:
//
// [Top down]:
// 135 0 (root) [-1] #1
// 121 72 start [-1] #3
// 49 33 delay [-1] #4
// 16 16 loop [-1] #5
// 14 14 (program) [-1] #2
TEST(SampleWhenFrameIsNotSetup) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::Script::Compile(v8::String::New(cpu_profiler_test_source2))->Run();
v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("start")));
int32_t repeat_count = 100;
#if defined(USE_SIMULATOR)
// Simulators are much slower.
repeat_count = 1;
#endif
v8::Handle<v8::Value> args[] = { v8::Integer::New(repeat_count) };
const v8::CpuProfile* profile =
RunProfiler(env, function, args, ARRAY_SIZE(args), 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8::String::New(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8::String::New(ProfileGenerator::kProgramEntryName);
names[2] = v8::String::New("start");
CheckChildrenNames(root, names);
const v8::CpuProfileNode* startNode = FindChild(root, "start");
// On slow machines there may be no meaningfull samples at all, skip the
// check there.
if (startNode && startNode->GetChildrenCount() > 0) {
CHECK_EQ(1, startNode->GetChildrenCount());
const v8::CpuProfileNode* delayNode = GetChild(startNode, "delay");
if (delayNode->GetChildrenCount() > 0) {
CHECK_EQ(1, delayNode->GetChildrenCount());
GetChild(delayNode, "loop");
}
}
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
cpu_profiler->DeleteAllCpuProfiles();
}
static const char* native_accessor_test_source = "function start(count) {\n"
" for (var i = 0; i < count; i++) {\n"
" var o = instance.foo;\n"
" instance.foo = o + 1;\n"
" }\n"
"}\n";
class TestApiCallbacks {
public:
explicit TestApiCallbacks(int min_duration_ms)
: min_duration_ms_(min_duration_ms),
is_warming_up_(false) {}
static void Getter(v8::Local<v8::String> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
TestApiCallbacks* data = fromInfo(info);
data->Wait();
}
static void Setter(v8::Local<v8::String> name,
v8::Local<v8::Value> value,
const v8::PropertyCallbackInfo<void>& info) {
TestApiCallbacks* data = fromInfo(info);
data->Wait();
}
static void Callback(const v8::FunctionCallbackInfo<v8::Value>& info) {
TestApiCallbacks* data = fromInfo(info);
data->Wait();
}
void set_warming_up(bool value) { is_warming_up_ = value; }
private:
void Wait() {
if (is_warming_up_) return;
double start = i::OS::TimeCurrentMillis();
double duration = 0;
while (duration < min_duration_ms_) {
i::OS::Sleep(1);
duration = i::OS::TimeCurrentMillis() - start;
}
}
template<typename T>
static TestApiCallbacks* fromInfo(const T& info) {
void* data = v8::External::Cast(*info.Data())->Value();
return reinterpret_cast<TestApiCallbacks*>(data);
}
int min_duration_ms_;
bool is_warming_up_;
};
// Test that native accessors are properly reported in the CPU profile.
// This test checks the case when the long-running accessors are called
// only once and the optimizer doesn't have chance to change the invocation
// code.
TEST(NativeAccessorUninitializedIC) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::Local<v8::FunctionTemplate> func_template = v8::FunctionTemplate::New();
v8::Local<v8::ObjectTemplate> instance_template =
func_template->InstanceTemplate();
TestApiCallbacks accessors(100);
v8::Local<v8::External> data = v8::External::New(&accessors);
instance_template->SetAccessor(
v8::String::New("foo"), &TestApiCallbacks::Getter,
&TestApiCallbacks::Setter, data);
v8::Local<v8::Function> func = func_template->GetFunction();
v8::Local<v8::Object> instance = func->NewInstance();
env->Global()->Set(v8::String::New("instance"), instance);
v8::Script::Compile(v8::String::New(native_accessor_test_source))->Run();
v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("start")));
int32_t repeat_count = 1;
v8::Handle<v8::Value> args[] = { v8::Integer::New(repeat_count) };
const v8::CpuProfile* profile =
RunProfiler(env, function, args, ARRAY_SIZE(args), 180);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* startNode = GetChild(root, "start");
GetChild(startNode, "get foo");
GetChild(startNode, "set foo");
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
cpu_profiler->DeleteAllCpuProfiles();
}
// Test that native accessors are properly reported in the CPU profile.
// This test makes sure that the accessors are called enough times to become
// hot and to trigger optimizations.
TEST(NativeAccessorMonomorphicIC) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::Local<v8::FunctionTemplate> func_template = v8::FunctionTemplate::New();
v8::Local<v8::ObjectTemplate> instance_template =
func_template->InstanceTemplate();
TestApiCallbacks accessors(1);
v8::Local<v8::External> data = v8::External::New(&accessors);
instance_template->SetAccessor(
v8::String::New("foo"), &TestApiCallbacks::Getter,
&TestApiCallbacks::Setter, data);
v8::Local<v8::Function> func = func_template->GetFunction();
v8::Local<v8::Object> instance = func->NewInstance();
env->Global()->Set(v8::String::New("instance"), instance);
v8::Script::Compile(v8::String::New(native_accessor_test_source))->Run();
v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("start")));
{
// Make sure accessors ICs are in monomorphic state before starting
// profiling.
accessors.set_warming_up(true);
int32_t warm_up_iterations = 3;
v8::Handle<v8::Value> args[] = { v8::Integer::New(warm_up_iterations) };
function->Call(env->Global(), ARRAY_SIZE(args), args);
accessors.set_warming_up(false);
}
int32_t repeat_count = 100;
v8::Handle<v8::Value> args[] = { v8::Integer::New(repeat_count) };
const v8::CpuProfile* profile =
RunProfiler(env, function, args, ARRAY_SIZE(args), 200);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* startNode = GetChild(root, "start");
GetChild(startNode, "get foo");
GetChild(startNode, "set foo");
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
cpu_profiler->DeleteAllCpuProfiles();
}
static const char* native_method_test_source = "function start(count) {\n"
" for (var i = 0; i < count; i++) {\n"
" instance.fooMethod();\n"
" }\n"
"}\n";
TEST(NativeMethodUninitializedIC) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
TestApiCallbacks callbacks(100);
v8::Local<v8::External> data = v8::External::New(&callbacks);
v8::Local<v8::FunctionTemplate> func_template = v8::FunctionTemplate::New();
func_template->SetClassName(v8::String::New("Test_InstanceCostructor"));
v8::Local<v8::ObjectTemplate> proto_template =
func_template->PrototypeTemplate();
v8::Local<v8::Signature> signature = v8::Signature::New(func_template);
proto_template->Set(v8::String::New("fooMethod"), v8::FunctionTemplate::New(
&TestApiCallbacks::Callback, data, signature, 0));
v8::Local<v8::Function> func = func_template->GetFunction();
v8::Local<v8::Object> instance = func->NewInstance();
env->Global()->Set(v8::String::New("instance"), instance);
v8::Script::Compile(v8::String::New(native_method_test_source))->Run();
v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("start")));
int32_t repeat_count = 1;
v8::Handle<v8::Value> args[] = { v8::Integer::New(repeat_count) };
const v8::CpuProfile* profile =
RunProfiler(env, function, args, ARRAY_SIZE(args), 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* startNode = GetChild(root, "start");
GetChild(startNode, "fooMethod");
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
cpu_profiler->DeleteAllCpuProfiles();
}
TEST(NativeMethodMonomorphicIC) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
TestApiCallbacks callbacks(1);
v8::Local<v8::External> data = v8::External::New(&callbacks);
v8::Local<v8::FunctionTemplate> func_template = v8::FunctionTemplate::New();
func_template->SetClassName(v8::String::New("Test_InstanceCostructor"));
v8::Local<v8::ObjectTemplate> proto_template =
func_template->PrototypeTemplate();
v8::Local<v8::Signature> signature = v8::Signature::New(func_template);
proto_template->Set(v8::String::New("fooMethod"), v8::FunctionTemplate::New(
&TestApiCallbacks::Callback, data, signature, 0));
v8::Local<v8::Function> func = func_template->GetFunction();
v8::Local<v8::Object> instance = func->NewInstance();
env->Global()->Set(v8::String::New("instance"), instance);
v8::Script::Compile(v8::String::New(native_method_test_source))->Run();
v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("start")));
{
// Make sure method ICs are in monomorphic state before starting
// profiling.
callbacks.set_warming_up(true);
int32_t warm_up_iterations = 3;
v8::Handle<v8::Value> args[] = { v8::Integer::New(warm_up_iterations) };
function->Call(env->Global(), ARRAY_SIZE(args), args);
callbacks.set_warming_up(false);
}
int32_t repeat_count = 100;
v8::Handle<v8::Value> args[] = { v8::Integer::New(repeat_count) };
const v8::CpuProfile* profile =
RunProfiler(env, function, args, ARRAY_SIZE(args), 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
GetChild(root, "start");
const v8::CpuProfileNode* startNode = GetChild(root, "start");
GetChild(startNode, "fooMethod");
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
cpu_profiler->DeleteAllCpuProfiles();
}
static const char* bound_function_test_source = "function foo(iterations) {\n"
" var r = 0;\n"
" for (var i = 0; i < iterations; i++) { r += i; }\n"
" return r;\n"
"}\n"
"function start(duration) {\n"
" var callback = foo.bind(this);\n"
" var start = Date.now();\n"
" while (Date.now() - start < duration) {\n"
" callback(10 * 1000);\n"
" }\n"
"}";
TEST(BoundFunctionCall) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::Script::Compile(v8::String::New(bound_function_test_source))->Run();
v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("start")));
int32_t duration_ms = 100;
v8::Handle<v8::Value> args[] = { v8::Integer::New(duration_ms) };
const v8::CpuProfile* profile =
RunProfiler(env, function, args, ARRAY_SIZE(args), 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8::String::New(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8::String::New(ProfileGenerator::kProgramEntryName);
names[2] = v8::String::New("start");
// Don't allow |foo| node to be at the top level.
CheckChildrenNames(root, names);
const v8::CpuProfileNode* startNode = GetChild(root, "start");
GetChild(startNode, "foo");
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
cpu_profiler->DeleteAllCpuProfiles();
}
static const char* call_function_test_source = "function bar(iterations) {\n"
"}\n"
"function start(duration) {\n"
" var start = Date.now();\n"
" while (Date.now() - start < duration) {\n"
" try {\n"
" bar.call(this, 10 * 1000);\n"
" } catch(e) {}\n"
" }\n"
"}";
// Test that if we sampled thread when it was inside FunctionCall buitin then
// its caller frame will be '(unresolved function)' as we have no reliable way
// to resolve it.
//
// [Top down]:
// 96 0 (root) [-1] #1
// 1 1 (garbage collector) [-1] #4
// 5 0 (unresolved function) [-1] #5
// 5 5 call [-1] #6
// 71 70 start [-1] #3
// 1 1 bar [-1] #7
// 19 19 (program) [-1] #2
TEST(FunctionCallSample) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
// Collect garbage that might have be generated while installing extensions.
HEAP->CollectAllGarbage(Heap::kNoGCFlags);
v8::Script::Compile(v8::String::New(call_function_test_source))->Run();
v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("start")));
int32_t duration_ms = 100;
v8::Handle<v8::Value> args[] = { v8::Integer::New(duration_ms) };
const v8::CpuProfile* profile =
RunProfiler(env, function, args, ARRAY_SIZE(args), 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
{
ScopedVector<v8::Handle<v8::String> > names(4);
names[0] = v8::String::New(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8::String::New(ProfileGenerator::kProgramEntryName);
names[2] = v8::String::New("start");
names[3] = v8::String::New(i::ProfileGenerator::kUnresolvedFunctionName);
// Don't allow |bar| and |call| nodes to be at the top level.
CheckChildrenNames(root, names);
}
// In case of GC stress tests all samples may be in GC phase and there
// won't be |start| node in the profiles.
bool is_gc_stress_testing =
(i::FLAG_gc_interval != -1) || i::FLAG_stress_compaction;
const v8::CpuProfileNode* startNode = FindChild(root, "start");
CHECK(is_gc_stress_testing || startNode);
if (startNode) {
ScopedVector<v8::Handle<v8::String> > names(2);
names[0] = v8::String::New("bar");
names[1] = v8::String::New("call");
CheckChildrenNames(startNode, names);
}
const v8::CpuProfileNode* unresolvedNode =
FindChild(root, i::ProfileGenerator::kUnresolvedFunctionName);
if (unresolvedNode) {
ScopedVector<v8::Handle<v8::String> > names(1);
names[0] = v8::String::New("call");
CheckChildrenNames(unresolvedNode, names);
}
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
cpu_profiler->DeleteAllCpuProfiles();
}
static const char* function_apply_test_source = "function bar(iterations) {\n"
"}\n"
"function test() {\n"
" bar.apply(this, [10 * 1000]);\n"
"}\n"
"function start(duration) {\n"
" var start = Date.now();\n"
" while (Date.now() - start < duration) {\n"
" try {\n"
" test();\n"
" } catch(e) {}\n"
" }\n"
"}";
// [Top down]:
// 94 0 (root) [-1] #0 1
// 2 2 (garbage collector) [-1] #0 7
// 82 49 start [-1] #16 3
// 1 0 (unresolved function) [-1] #0 8
// 1 1 apply [-1] #0 9
// 32 21 test [-1] #16 4
// 2 2 bar [-1] #16 6
// 9 9 apply [-1] #0 5
// 10 10 (program) [-1] #0 2
TEST(FunctionApplySample) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::Script::Compile(v8::String::New(function_apply_test_source))->Run();
v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("start")));
int32_t duration_ms = 100;
v8::Handle<v8::Value> args[] = { v8::Integer::New(duration_ms) };
const v8::CpuProfile* profile =
RunProfiler(env, function, args, ARRAY_SIZE(args), 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
{
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8::String::New(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8::String::New(ProfileGenerator::kProgramEntryName);
names[2] = v8::String::New("start");
// Don't allow |test|, |bar| and |apply| nodes to be at the top level.
CheckChildrenNames(root, names);
}
const v8::CpuProfileNode* startNode = FindChild(root, "start");
if (startNode) {
{
ScopedVector<v8::Handle<v8::String> > names(2);
names[0] = v8::String::New("test");
names[1] = v8::String::New(ProfileGenerator::kUnresolvedFunctionName);
CheckChildrenNames(startNode, names);
}
const v8::CpuProfileNode* testNode = FindChild(startNode, "test");
if (testNode) {
ScopedVector<v8::Handle<v8::String> > names(2);
names[0] = v8::String::New("bar");
names[1] = v8::String::New("apply");
CheckChildrenNames(testNode, names);
}
if (const v8::CpuProfileNode* unresolvedNode =
FindChild(startNode, ProfileGenerator::kUnresolvedFunctionName)) {
ScopedVector<v8::Handle<v8::String> > names(1);
names[0] = v8::String::New("apply");
CheckChildrenNames(unresolvedNode, names);
GetChild(unresolvedNode, "apply");
}
}
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
cpu_profiler->DeleteAllCpuProfiles();
}
static const char* js_native_js_test_source = "function foo(iterations) {\n"
" var r = 0;\n"
" for (var i = 0; i < iterations; i++) { r += i; }\n"
" return r;\n"
"}\n"
"function bar(iterations) {\n"
" try { foo(iterations); } catch(e) {}\n"
"}\n"
"function start(duration) {\n"
" var start = Date.now();\n"
" while (Date.now() - start < duration) {\n"
" try {\n"
" CallJsFunction(bar, 10 * 1000);\n"
" } catch(e) {}\n"
" }\n"
"}";
static void CallJsFunction(const v8::FunctionCallbackInfo<v8::Value>& info) {
v8::Handle<v8::Function> function = info[0].As<v8::Function>();
v8::Handle<v8::Value> argv[] = { info[1] };
function->Call(info.This(), ARRAY_SIZE(argv), argv);
}
// [Top down]:
// 58 0 (root) #0 1
// 2 2 (program) #0 2
// 56 1 start #16 3
// 55 0 CallJsFunction #0 4
// 55 1 bar #16 5
// 54 54 foo #16 6
TEST(JsNativeJsSample) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::Local<v8::FunctionTemplate> func_template = v8::FunctionTemplate::New(
CallJsFunction);
v8::Local<v8::Function> func = func_template->GetFunction();
func->SetName(v8::String::New("CallJsFunction"));
env->Global()->Set(v8::String::New("CallJsFunction"), func);
v8::Script::Compile(v8::String::New(js_native_js_test_source))->Run();
v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("start")));
int32_t duration_ms = 20;
v8::Handle<v8::Value> args[] = { v8::Integer::New(duration_ms) };
const v8::CpuProfile* profile =
RunProfiler(env, function, args, ARRAY_SIZE(args), 50);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
{
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8::String::New(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8::String::New(ProfileGenerator::kProgramEntryName);
names[2] = v8::String::New("start");
CheckChildrenNames(root, names);
}
const v8::CpuProfileNode* startNode = GetChild(root, "start");
CHECK_EQ(1, startNode->GetChildrenCount());
const v8::CpuProfileNode* nativeFunctionNode =
GetChild(startNode, "CallJsFunction");
CHECK_EQ(1, nativeFunctionNode->GetChildrenCount());
const v8::CpuProfileNode* barNode = GetChild(nativeFunctionNode, "bar");
CHECK_EQ(1, barNode->GetChildrenCount());
GetChild(barNode, "foo");
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
cpu_profiler->DeleteAllCpuProfiles();
}
static const char* js_native_js_runtime_js_test_source =
"function foo(iterations) {\n"
" var r = 0;\n"
" for (var i = 0; i < iterations; i++) { r += i; }\n"
" return r;\n"
"}\n"
"var bound = foo.bind(this);\n"
"function bar(iterations) {\n"
" try { bound(iterations); } catch(e) {}\n"
"}\n"
"function start(duration) {\n"
" var start = Date.now();\n"
" while (Date.now() - start < duration) {\n"
" try {\n"
" CallJsFunction(bar, 10 * 1000);\n"
" } catch(e) {}\n"
" }\n"
"}";
// [Top down]:
// 57 0 (root) #0 1
// 55 1 start #16 3
// 54 0 CallJsFunction #0 4
// 54 3 bar #16 5
// 51 51 foo #16 6
// 2 2 (program) #0 2
TEST(JsNativeJsRuntimeJsSample) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::Local<v8::FunctionTemplate> func_template = v8::FunctionTemplate::New(
CallJsFunction);
v8::Local<v8::Function> func = func_template->GetFunction();
func->SetName(v8::String::New("CallJsFunction"));
env->Global()->Set(v8::String::New("CallJsFunction"), func);
v8::Script::Compile(v8::String::New(js_native_js_runtime_js_test_source))->
Run();
v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("start")));
int32_t duration_ms = 20;
v8::Handle<v8::Value> args[] = { v8::Integer::New(duration_ms) };
const v8::CpuProfile* profile =
RunProfiler(env, function, args, ARRAY_SIZE(args), 50);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8::String::New(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8::String::New(ProfileGenerator::kProgramEntryName);
names[2] = v8::String::New("start");
CheckChildrenNames(root, names);
const v8::CpuProfileNode* startNode = GetChild(root, "start");
CHECK_EQ(1, startNode->GetChildrenCount());
const v8::CpuProfileNode* nativeFunctionNode =
GetChild(startNode, "CallJsFunction");
CHECK_EQ(1, nativeFunctionNode->GetChildrenCount());
const v8::CpuProfileNode* barNode = GetChild(nativeFunctionNode, "bar");
CHECK_EQ(1, barNode->GetChildrenCount());
GetChild(barNode, "foo");
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
cpu_profiler->DeleteAllCpuProfiles();
}
static void CallJsFunction2(const v8::FunctionCallbackInfo<v8::Value>& info) {
CallJsFunction(info);
}
static const char* js_native1_js_native2_js_test_source =
"function foo(iterations) {\n"
" var r = 0;\n"
" for (var i = 0; i < iterations; i++) { r += i; }\n"
" return r;\n"
"}\n"
"function bar(iterations) {\n"
" CallJsFunction2(foo, iterations);\n"
"}\n"
"function start(duration) {\n"
" var start = Date.now();\n"
" while (Date.now() - start < duration) {\n"
" try {\n"
" CallJsFunction1(bar, 10 * 1000);\n"
" } catch(e) {}\n"
" }\n"
"}";
// [Top down]:
// 57 0 (root) #0 1
// 55 1 start #16 3
// 54 0 CallJsFunction1 #0 4
// 54 0 bar #16 5
// 54 0 CallJsFunction2 #0 6
// 54 54 foo #16 7
// 2 2 (program) #0 2
TEST(JsNative1JsNative2JsSample) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::Local<v8::FunctionTemplate> func_template = v8::FunctionTemplate::New(
CallJsFunction);
v8::Local<v8::Function> func1 = func_template->GetFunction();
func1->SetName(v8::String::New("CallJsFunction1"));
env->Global()->Set(v8::String::New("CallJsFunction1"), func1);
v8::Local<v8::Function> func2 = v8::FunctionTemplate::New(
CallJsFunction2)->GetFunction();
func2->SetName(v8::String::New("CallJsFunction2"));
env->Global()->Set(v8::String::New("CallJsFunction2"), func2);
v8::Script::Compile(v8::String::New(js_native1_js_native2_js_test_source))->
Run();
v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(
env->Global()->Get(v8::String::New("start")));
int32_t duration_ms = 20;
v8::Handle<v8::Value> args[] = { v8::Integer::New(duration_ms) };
const v8::CpuProfile* profile =
RunProfiler(env, function, args, ARRAY_SIZE(args), 50);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8::String::New(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8::String::New(ProfileGenerator::kProgramEntryName);
names[2] = v8::String::New("start");
CheckChildrenNames(root, names);
const v8::CpuProfileNode* startNode = GetChild(root, "start");
CHECK_EQ(1, startNode->GetChildrenCount());
const v8::CpuProfileNode* nativeNode1 =
GetChild(startNode, "CallJsFunction1");
CHECK_EQ(1, nativeNode1->GetChildrenCount());
const v8::CpuProfileNode* barNode = GetChild(nativeNode1, "bar");
CHECK_EQ(1, barNode->GetChildrenCount());
const v8::CpuProfileNode* nativeNode2 = GetChild(barNode, "CallJsFunction2");
CHECK_EQ(1, nativeNode2->GetChildrenCount());
GetChild(nativeNode2, "foo");
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
cpu_profiler->DeleteAllCpuProfiles();
}
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