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v8/test/cctest/test-cpu-profiler.cc
lpy 04f710ac20 [Reland] Refactor CpuProfiler. 
Currently CpuProfiler is a subclass of CodeEventListener, it listens code events
from Logger, constructs and stores CodeEventsContainer. This patch is part of
the effort to split the logic of CodeEventListener as ProfilerListener out of
the profiling functionality logic in CpuProfiler. A ProfilerListener will listen
to code events, construct code event to CodeEventsContainer and pass it to code
event handler.

The reason we refactor CpuProfiler is that eventually we want to move
CpuProfiler as part of sampler library and code event listener should stay
inside V8.

Main changes:
1. Refactored CpuProfiler into two parts, the CpuProfiler with profling
functionality and the ProfilerListener listening to code events from Logger.
2. Created CodeEventObserver and made CpuProfiler inherit from it.
ProfilerListener will have a list of observers and call CodeEventHandler once a
code event is created.
3. Moved code entry list from CodeEntry to ProfilerListener.

Minor changes:
1. Moved static code entry as part of CodeEntry.
2. Added ProfilerListener to Logger.

BUG=v8:4789

Committed: https://crrev.com/cb59fc1facc9b390e2c7544b4da56a4e0a9b3222
Review-Url: https://codereview.chromium.org/2053523003
Cr-Original-Commit-Position: refs/heads/master@{#37112}
Cr-Commit-Position: refs/heads/master@{#37195}
2016-06-22 16:45:51 +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 "src/v8.h"
#include "include/v8-profiler.h"
#include "src/base/platform/platform.h"
#include "src/deoptimizer.h"
#include "src/profiler/cpu-profiler-inl.h"
#include "src/profiler/profiler-listener.h"
#include "src/utils.h"
#include "test/cctest/cctest.h"
#include "test/cctest/profiler-extension.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::ProfilerListener;
using i::ScopedVector;
using i::Vector;
// Helper methods
static v8::Local<v8::Function> GetFunction(v8::Local<v8::Context> env,
const char* name) {
return v8::Local<v8::Function>::Cast(
env->Global()->Get(env, v8_str(name)).ToLocalChecked());
}
static size_t offset(const char* src, const char* substring) {
const char* it = strstr(src, substring);
CHECK(it);
return static_cast<size_t>(it - src);
}
static const char* reason(const i::Deoptimizer::DeoptReason reason) {
return i::Deoptimizer::GetDeoptReason(reason);
}
TEST(StartStop) {
CpuProfilesCollection profiles(CcTest::i_isolate());
ProfileGenerator generator(&profiles);
std::unique_ptr<ProfilerEventsProcessor> processor(
new ProfilerEventsProcessor(&generator, nullptr,
v8::base::TimeDelta::FromMicroseconds(100)));
processor->Start();
processor->StopSynchronously();
}
static void EnqueueTickSampleEvent(ProfilerEventsProcessor* proc,
i::Address frame1,
i::Address frame2 = NULL,
i::Address frame3 = NULL) {
i::TickSample* sample = proc->StartTickSample();
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;
}
proc->FinishTickSample();
}
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::AbstractCode* CreateCode(LocalContext* env) {
static int counter = 0;
i::EmbeddedVector<char, 256> script;
i::EmbeddedVector<char, 32> name;
i::SNPrintF(name, "function_%d", ++counter);
const char* name_start = name.start();
i::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 = i::Handle<i::JSFunction>::cast(
v8::Utils::OpenHandle(*GetFunction(env->local(), name_start)));
return fun->abstract_code();
}
TEST(CodeEvents) {
CcTest::InitializeVM();
LocalContext env;
i::Isolate* isolate = CcTest::i_isolate();
i::Factory* factory = isolate->factory();
TestSetup test_setup;
i::HandleScope scope(isolate);
i::AbstractCode* aaa_code = CreateCode(&env);
i::AbstractCode* comment_code = CreateCode(&env);
i::AbstractCode* args5_code = CreateCode(&env);
i::AbstractCode* comment2_code = CreateCode(&env);
i::AbstractCode* moved_code = CreateCode(&env);
i::AbstractCode* args3_code = CreateCode(&env);
i::AbstractCode* args4_code = CreateCode(&env);
CpuProfilesCollection* profiles = new CpuProfilesCollection(isolate);
ProfileGenerator* generator = new ProfileGenerator(profiles);
ProfilerEventsProcessor* processor = new ProfilerEventsProcessor(
generator, nullptr, v8::base::TimeDelta::FromMicroseconds(100));
CpuProfiler profiler(isolate, profiles, generator, processor);
profiles->StartProfiling("", false);
processor->Start();
ProfilerListener profiler_listener(isolate);
isolate->code_event_dispatcher()->AddListener(&profiler_listener);
profiler_listener.AddObserver(&profiler);
// Enqueue code creation events.
const char* aaa_str = "aaa";
i::Handle<i::String> aaa_name = factory->NewStringFromAsciiChecked(aaa_str);
profiler_listener.CodeCreateEvent(i::Logger::FUNCTION_TAG, aaa_code,
*aaa_name);
profiler_listener.CodeCreateEvent(i::Logger::BUILTIN_TAG, comment_code,
"comment");
profiler_listener.CodeCreateEvent(i::Logger::STUB_TAG, args5_code, 5);
profiler_listener.CodeCreateEvent(i::Logger::BUILTIN_TAG, comment2_code,
"comment2");
profiler_listener.CodeMoveEvent(comment2_code, moved_code->address());
profiler_listener.CodeCreateEvent(i::Logger::STUB_TAG, args3_code, 3);
profiler_listener.CodeCreateEvent(i::Logger::STUB_TAG, args4_code, 4);
// Enqueue a tick event to enable code events processing.
EnqueueTickSampleEvent(processor, aaa_code->address());
profiler_listener.RemoveObserver(&profiler);
isolate->code_event_dispatcher()->RemoveListener(&profiler_listener);
processor->StopSynchronously();
// Check the state of profile generator.
CodeEntry* aaa = generator->code_map()->FindEntry(aaa_code->address());
CHECK(aaa);
CHECK_EQ(0, strcmp(aaa_str, aaa->name()));
CodeEntry* comment =
generator->code_map()->FindEntry(comment_code->address());
CHECK(comment);
CHECK_EQ(0, strcmp("comment", comment->name()));
CodeEntry* args5 = generator->code_map()->FindEntry(args5_code->address());
CHECK(args5);
CHECK_EQ(0, strcmp("5", args5->name()));
CHECK(!generator->code_map()->FindEntry(comment2_code->address()));
CodeEntry* comment2 = generator->code_map()->FindEntry(moved_code->address());
CHECK(comment2);
CHECK_EQ(0, strcmp("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 = CcTest::i_isolate();
i::HandleScope scope(isolate);
i::AbstractCode* frame1_code = CreateCode(&env);
i::AbstractCode* frame2_code = CreateCode(&env);
i::AbstractCode* frame3_code = CreateCode(&env);
CpuProfilesCollection* profiles = new CpuProfilesCollection(isolate);
ProfileGenerator* generator = new ProfileGenerator(profiles);
ProfilerEventsProcessor* processor = new ProfilerEventsProcessor(
generator, nullptr, v8::base::TimeDelta::FromMicroseconds(100));
CpuProfiler profiler(isolate, profiles, generator, processor);
profiles->StartProfiling("", false);
processor->Start();
ProfilerListener profiler_listener(isolate);
isolate->code_event_dispatcher()->AddListener(&profiler_listener);
profiler_listener.AddObserver(&profiler);
profiler_listener.CodeCreateEvent(i::Logger::BUILTIN_TAG, frame1_code, "bbb");
profiler_listener.CodeCreateEvent(i::Logger::STUB_TAG, frame2_code, 5);
profiler_listener.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);
profiler_listener.RemoveObserver(&profiler);
isolate->code_event_dispatcher()->RemoveListener(&profiler_listener);
processor->StopSynchronously();
CpuProfile* profile = profiles->StopProfiling("");
CHECK(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(0, strcmp("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(0, strcmp("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(0, strcmp("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());
isolate->code_event_dispatcher()->RemoveListener(&profiler_listener);
}
// http://crbug/51594
// This test must not crash.
TEST(CrashIfStoppingLastNonExistentProfile) {
CcTest::InitializeVM();
TestSetup test_setup;
CpuProfiler* profiler = CcTest::i_isolate()->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 = CcTest::i_isolate();
i::HandleScope scope(isolate);
i::AbstractCode* code = CreateCode(&env);
CpuProfilesCollection* profiles = new CpuProfilesCollection(isolate);
ProfileGenerator* generator = new ProfileGenerator(profiles);
ProfilerEventsProcessor* processor = new ProfilerEventsProcessor(
generator, nullptr, v8::base::TimeDelta::FromMicroseconds(100));
CpuProfiler profiler(isolate, profiles, generator, processor);
profiles->StartProfiling("", false);
processor->Start();
ProfilerListener profiler_listener(isolate);
isolate->code_event_dispatcher()->AddListener(&profiler_listener);
profiler_listener.AddObserver(&profiler);
profiler_listener.CodeCreateEvent(i::Logger::BUILTIN_TAG, code, "bbb");
i::TickSample* sample = processor->StartTickSample();
sample->pc = code->address();
sample->tos = 0;
sample->frames_count = i::TickSample::kMaxFramesCount;
for (unsigned i = 0; i < sample->frames_count; ++i) {
sample->stack[i] = code->address();
}
processor->FinishTickSample();
profiler_listener.RemoveObserver(&profiler);
isolate->code_event_dispatcher()->RemoveListener(&profiler_listener);
processor->StopSynchronously();
CpuProfile* profile = profiles->StopProfiling("");
CHECK(profile);
unsigned 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 = CcTest::i_isolate()->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 bool FindCpuProfile(v8::CpuProfiler* v8profiler,
const v8::CpuProfile* v8profile) {
i::CpuProfiler* profiler = reinterpret_cast<i::CpuProfiler*>(v8profiler);
const i::CpuProfile* profile =
reinterpret_cast<const i::CpuProfile*>(v8profile);
int length = profiler->GetProfilesCount();
for (int i = 0; i < length; i++) {
if (profile == profiler->GetProfile(i))
return true;
}
return false;
}
TEST(DeleteCpuProfile) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
i::CpuProfiler* iprofiler = reinterpret_cast<i::CpuProfiler*>(cpu_profiler);
CHECK_EQ(0, iprofiler->GetProfilesCount());
v8::Local<v8::String> name1 = v8_str("1");
cpu_profiler->StartProfiling(name1);
v8::CpuProfile* p1 = cpu_profiler->StopProfiling(name1);
CHECK(p1);
CHECK_EQ(1, iprofiler->GetProfilesCount());
CHECK(FindCpuProfile(cpu_profiler, p1));
p1->Delete();
CHECK_EQ(0, iprofiler->GetProfilesCount());
v8::Local<v8::String> name2 = v8_str("2");
cpu_profiler->StartProfiling(name2);
v8::CpuProfile* p2 = cpu_profiler->StopProfiling(name2);
CHECK(p2);
CHECK_EQ(1, iprofiler->GetProfilesCount());
CHECK(FindCpuProfile(cpu_profiler, p2));
v8::Local<v8::String> name3 = v8_str("3");
cpu_profiler->StartProfiling(name3);
v8::CpuProfile* p3 = cpu_profiler->StopProfiling(name3);
CHECK(p3);
CHECK_EQ(2, iprofiler->GetProfilesCount());
CHECK_NE(p2, p3);
CHECK(FindCpuProfile(cpu_profiler, p3));
CHECK(FindCpuProfile(cpu_profiler, p2));
p2->Delete();
CHECK_EQ(1, iprofiler->GetProfilesCount());
CHECK(!FindCpuProfile(cpu_profiler, p2));
CHECK(FindCpuProfile(cpu_profiler, p3));
p3->Delete();
CHECK_EQ(0, iprofiler->GetProfilesCount());
}
TEST(ProfileStartEndTime) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
v8::Local<v8::String> profile_name = v8_str("test");
cpu_profiler->StartProfiling(profile_name);
const v8::CpuProfile* profile = cpu_profiler->StopProfiling(profile_name);
CHECK(profile->GetStartTime() <= profile->GetEndTime());
}
static v8::CpuProfile* RunProfiler(v8::Local<v8::Context> env,
v8::Local<v8::Function> function,
v8::Local<v8::Value> argv[], int argc,
unsigned min_js_samples = 0,
unsigned min_external_samples = 0,
bool collect_samples = false) {
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
v8::Local<v8::String> profile_name = v8_str("my_profile");
cpu_profiler->SetSamplingInterval(100);
cpu_profiler->StartProfiling(profile_name, collect_samples);
v8::sampler::Sampler* sampler =
reinterpret_cast<i::Isolate*>(env->GetIsolate())->logger()->sampler();
sampler->StartCountingSamples();
do {
function->Call(env, env->Global(), argc, argv).ToLocalChecked();
} while (sampler->js_sample_count() < min_js_samples ||
sampler->external_sample_count() < min_external_samples);
v8::CpuProfile* profile = cpu_profiler->StopProfiling(profile_name);
CHECK(profile);
// Dump collected profile to have a better diagnostic in case of failure.
reinterpret_cast<i::CpuProfile*>(profile)->Print();
return profile;
}
static const v8::CpuProfileNode* FindChild(v8::Local<v8::Context> context,
const v8::CpuProfileNode* node,
const char* name) {
int count = node->GetChildrenCount();
v8::Local<v8::String> name_handle = v8_str(name);
for (int i = 0; i < count; i++) {
const v8::CpuProfileNode* child = node->GetChild(i);
if (name_handle->Equals(context, child->GetFunctionName()).FromJust()) {
return child;
}
}
return NULL;
}
static const v8::CpuProfileNode* GetChild(v8::Local<v8::Context> context,
const v8::CpuProfileNode* node,
const char* name) {
const v8::CpuProfileNode* result = FindChild(context, node, name);
if (!result) {
char buffer[100];
i::SNPrintF(i::ArrayVector(buffer), "Failed to GetChild: %s", name);
FATAL(buffer);
}
return result;
}
static void CheckSimpleBranch(v8::Local<v8::Context> context,
const v8::CpuProfileNode* node,
const char* names[], int length) {
for (int i = 0; i < length; i++) {
const char* name = names[i];
node = GetChild(context, node, name);
}
}
static const ProfileNode* GetSimpleBranch(v8::Local<v8::Context> context,
v8::CpuProfile* profile,
const char* names[], int length) {
const v8::CpuProfileNode* node = profile->GetTopDownRoot();
for (int i = 0; i < length; i++) {
node = GetChild(context, node, names[i]);
}
return reinterpret_cast<const ProfileNode*>(node);
}
static void CallCollectSample(const v8::FunctionCallbackInfo<v8::Value>& info) {
info.GetIsolate()->GetCpuProfiler()->CollectSample();
}
static const char* cpu_profiler_test_source =
"%NeverOptimizeFunction(loop);\n"
"%NeverOptimizeFunction(delay);\n"
"%NeverOptimizeFunction(bar);\n"
"%NeverOptimizeFunction(baz);\n"
"%NeverOptimizeFunction(foo);\n"
"%NeverOptimizeFunction(start);\n"
"function loop(timeout) {\n"
" this.mmm = 0;\n"
" var start = Date.now();\n"
" do {\n"
" var n = 1000;\n"
" while(n > 1) {\n"
" n--;\n"
" this.mmm += n * n * n;\n"
" }\n"
" } while (Date.now() - start < timeout);\n"
"}\n"
"function delay() { loop(10); }\n"
"function bar() { delay(); }\n"
"function baz() { delay(); }\n"
"function foo() {\n"
" delay();\n"
" bar();\n"
" delay();\n"
" baz();\n"
"}\n"
"function start(duration) {\n"
" var start = Date.now();\n"
" do {\n"
" foo();\n"
" } while (Date.now() - start < 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) {
i::FLAG_allow_natives_syntax = true;
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
CompileRun(cpu_profiler_test_source);
v8::Local<v8::Function> function = GetFunction(env.local(), "start");
int32_t profiling_interval_ms = 200;
v8::Local<v8::Value> args[] = {
v8::Integer::New(env->GetIsolate(), profiling_interval_ms)};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 1000);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env.local(), root, "start");
const v8::CpuProfileNode* foo_node = GetChild(env.local(), start_node, "foo");
const char* bar_branch[] = {"bar", "delay", "loop"};
CheckSimpleBranch(env.local(), foo_node, bar_branch, arraysize(bar_branch));
const char* baz_branch[] = {"baz", "delay", "loop"};
CheckSimpleBranch(env.local(), foo_node, baz_branch, arraysize(baz_branch));
const char* delay_branch[] = {"delay", "loop"};
CheckSimpleBranch(env.local(), foo_node, delay_branch,
arraysize(delay_branch));
profile->Delete();
}
static const char* hot_deopt_no_frame_entry_test_source =
"%NeverOptimizeFunction(foo);\n"
"%NeverOptimizeFunction(start);\n"
"function foo(a, b) {\n"
" return a + b;\n"
"}\n"
"function start(timeout) {\n"
" var start = Date.now();\n"
" do {\n"
" for (var i = 1; i < 1000; ++i) foo(1, i);\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]
// 2 2 (program) [-1]
// 6 6 (garbage collector) [-1]
//
// The test checks no FP ranges are present in a deoptimized function.
// If 'foo' has no ranges the samples falling into the prologue will miss the
// 'start' function on the stack, so 'foo' will be attached to the (root).
TEST(HotDeoptNoFrameEntry) {
i::FLAG_allow_natives_syntax = true;
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
CompileRun(hot_deopt_no_frame_entry_test_source);
v8::Local<v8::Function> function = GetFunction(env.local(), "start");
int32_t profiling_interval_ms = 200;
v8::Local<v8::Value> args[] = {
v8::Integer::New(env->GetIsolate(), profiling_interval_ms)};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 1000);
function->Call(env.local(), env->Global(), arraysize(args), args)
.ToLocalChecked();
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env.local(), root, "start");
GetChild(env.local(), start_node, "foo");
profile->Delete();
}
TEST(CollectCpuProfileSamples) {
i::FLAG_allow_natives_syntax = true;
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
CompileRun(cpu_profiler_test_source);
v8::Local<v8::Function> function = GetFunction(env.local(), "start");
int32_t profiling_interval_ms = 200;
v8::Local<v8::Value> args[] = {
v8::Integer::New(env->GetIsolate(), profiling_interval_ms)};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 1000, 0, true);
CHECK_LE(200, profile->GetSamplesCount());
uint64_t end_time = profile->GetEndTime();
uint64_t current_time = profile->GetStartTime();
CHECK_LE(current_time, end_time);
for (int i = 0; i < profile->GetSamplesCount(); i++) {
CHECK(profile->GetSample(i));
uint64_t timestamp = profile->GetSampleTimestamp(i);
CHECK_LE(current_time, timestamp);
CHECK_LE(timestamp, end_time);
current_time = timestamp;
}
profile->Delete();
}
static const char* cpu_profiler_test_source2 =
"%NeverOptimizeFunction(loop);\n"
"%NeverOptimizeFunction(delay);\n"
"%NeverOptimizeFunction(start);\n"
"function loop() {}\n"
"function delay() { loop(); }\n"
"function start(duration) {\n"
" var start = Date.now();\n"
" do {\n"
" for (var i = 0; i < 10000; ++i) delay();\n"
" } while (Date.now() - start < duration);\n"
"}";
// Check that the profile tree doesn't contain unexpected 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) {
i::FLAG_allow_natives_syntax = true;
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
CompileRun(cpu_profiler_test_source2);
v8::Local<v8::Function> function = GetFunction(env.local(), "start");
int32_t duration_ms = 100;
v8::Local<v8::Value> args[] = {
v8::Integer::New(env->GetIsolate(), duration_ms)};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 1000);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env.local(), root, "start");
const v8::CpuProfileNode* delay_node =
GetChild(env.local(), start_node, "delay");
GetChild(env.local(), delay_node, "loop");
profile->Delete();
}
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 = v8::base::OS::TimeCurrentMillis();
double duration = 0;
while (duration < min_duration_ms_) {
v8::base::OS::Sleep(v8::base::TimeDelta::FromMilliseconds(1));
duration = v8::base::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::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::FunctionTemplate> func_template =
v8::FunctionTemplate::New(isolate);
v8::Local<v8::ObjectTemplate> instance_template =
func_template->InstanceTemplate();
TestApiCallbacks accessors(100);
v8::Local<v8::External> data =
v8::External::New(isolate, &accessors);
instance_template->SetAccessor(v8_str("foo"), &TestApiCallbacks::Getter,
&TestApiCallbacks::Setter, data);
v8::Local<v8::Function> func =
func_template->GetFunction(env.local()).ToLocalChecked();
v8::Local<v8::Object> instance =
func->NewInstance(env.local()).ToLocalChecked();
env->Global()->Set(env.local(), v8_str("instance"), instance).FromJust();
CompileRun(native_accessor_test_source);
v8::Local<v8::Function> function = GetFunction(env.local(), "start");
int32_t repeat_count = 1;
v8::Local<v8::Value> args[] = {v8::Integer::New(isolate, repeat_count)};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 0, 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env.local(), root, "start");
GetChild(env.local(), start_node, "get foo");
GetChild(env.local(), start_node, "set foo");
profile->Delete();
}
// 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::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::FunctionTemplate> func_template =
v8::FunctionTemplate::New(isolate);
v8::Local<v8::ObjectTemplate> instance_template =
func_template->InstanceTemplate();
TestApiCallbacks accessors(1);
v8::Local<v8::External> data =
v8::External::New(isolate, &accessors);
instance_template->SetAccessor(v8_str("foo"), &TestApiCallbacks::Getter,
&TestApiCallbacks::Setter, data);
v8::Local<v8::Function> func =
func_template->GetFunction(env.local()).ToLocalChecked();
v8::Local<v8::Object> instance =
func->NewInstance(env.local()).ToLocalChecked();
env->Global()->Set(env.local(), v8_str("instance"), instance).FromJust();
CompileRun(native_accessor_test_source);
v8::Local<v8::Function> function = GetFunction(env.local(), "start");
{
// Make sure accessors ICs are in monomorphic state before starting
// profiling.
accessors.set_warming_up(true);
int32_t warm_up_iterations = 3;
v8::Local<v8::Value> args[] = {
v8::Integer::New(isolate, warm_up_iterations)};
function->Call(env.local(), env->Global(), arraysize(args), args)
.ToLocalChecked();
accessors.set_warming_up(false);
}
int32_t repeat_count = 100;
v8::Local<v8::Value> args[] = {v8::Integer::New(isolate, repeat_count)};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 0, 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env.local(), root, "start");
GetChild(env.local(), start_node, "get foo");
GetChild(env.local(), start_node, "set foo");
profile->Delete();
}
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::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
TestApiCallbacks callbacks(100);
v8::Local<v8::External> data =
v8::External::New(isolate, &callbacks);
v8::Local<v8::FunctionTemplate> func_template =
v8::FunctionTemplate::New(isolate);
func_template->SetClassName(v8_str("Test_InstanceCostructor"));
v8::Local<v8::ObjectTemplate> proto_template =
func_template->PrototypeTemplate();
v8::Local<v8::Signature> signature =
v8::Signature::New(isolate, func_template);
proto_template->Set(
v8_str("fooMethod"),
v8::FunctionTemplate::New(isolate, &TestApiCallbacks::Callback, data,
signature, 0));
v8::Local<v8::Function> func =
func_template->GetFunction(env.local()).ToLocalChecked();
v8::Local<v8::Object> instance =
func->NewInstance(env.local()).ToLocalChecked();
env->Global()->Set(env.local(), v8_str("instance"), instance).FromJust();
CompileRun(native_method_test_source);
v8::Local<v8::Function> function = GetFunction(env.local(), "start");
int32_t repeat_count = 1;
v8::Local<v8::Value> args[] = {v8::Integer::New(isolate, repeat_count)};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 0, 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env.local(), root, "start");
GetChild(env.local(), start_node, "fooMethod");
profile->Delete();
}
TEST(NativeMethodMonomorphicIC) {
LocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
TestApiCallbacks callbacks(1);
v8::Local<v8::External> data =
v8::External::New(isolate, &callbacks);
v8::Local<v8::FunctionTemplate> func_template =
v8::FunctionTemplate::New(isolate);
func_template->SetClassName(v8_str("Test_InstanceCostructor"));
v8::Local<v8::ObjectTemplate> proto_template =
func_template->PrototypeTemplate();
v8::Local<v8::Signature> signature =
v8::Signature::New(isolate, func_template);
proto_template->Set(
v8_str("fooMethod"),
v8::FunctionTemplate::New(isolate, &TestApiCallbacks::Callback, data,
signature, 0));
v8::Local<v8::Function> func =
func_template->GetFunction(env.local()).ToLocalChecked();
v8::Local<v8::Object> instance =
func->NewInstance(env.local()).ToLocalChecked();
env->Global()->Set(env.local(), v8_str("instance"), instance).FromJust();
CompileRun(native_method_test_source);
v8::Local<v8::Function> function = GetFunction(env.local(), "start");
{
// Make sure method ICs are in monomorphic state before starting
// profiling.
callbacks.set_warming_up(true);
int32_t warm_up_iterations = 3;
v8::Local<v8::Value> args[] = {
v8::Integer::New(isolate, warm_up_iterations)};
function->Call(env.local(), env->Global(), arraysize(args), args)
.ToLocalChecked();
callbacks.set_warming_up(false);
}
int32_t repeat_count = 100;
v8::Local<v8::Value> args[] = {v8::Integer::New(isolate, repeat_count)};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 0, 200);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
GetChild(env.local(), root, "start");
const v8::CpuProfileNode* start_node = GetChild(env.local(), root, "start");
GetChild(env.local(), start_node, "fooMethod");
profile->Delete();
}
static const char* bound_function_test_source =
"function foo() {\n"
" startProfiling('my_profile');\n"
"}\n"
"function start() {\n"
" var callback = foo.bind(this);\n"
" callback();\n"
"}";
TEST(BoundFunctionCall) {
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
CompileRun(bound_function_test_source);
v8::Local<v8::Function> function = GetFunction(env, "start");
v8::CpuProfile* profile = RunProfiler(env, function, NULL, 0);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env, root, "start");
GetChild(env, start_node, "foo");
profile->Delete();
}
// This tests checks distribution of the samples through the source lines.
static void TickLines(bool optimize) {
CcTest::InitializeVM();
LocalContext env;
i::FLAG_allow_natives_syntax = true;
i::FLAG_turbo_source_positions = true;
i::Isolate* isolate = CcTest::i_isolate();
i::Factory* factory = isolate->factory();
i::HandleScope scope(isolate);
i::EmbeddedVector<char, 512> script;
const char* func_name = "func";
const char* opt_func =
optimize ? "%OptimizeFunctionOnNextCall" : "%NeverOptimizeFunction";
i::SNPrintF(script,
"function %s() {\n"
" var n = 0;\n"
" var m = 100*100;\n"
" while (m > 1) {\n"
" m--;\n"
" n += m * m * m;\n"
" }\n"
"}\n"
"%s(%s);\n"
"%s();\n",
func_name, opt_func, func_name, func_name);
CompileRun(script.start());
i::Handle<i::JSFunction> func = i::Handle<i::JSFunction>::cast(
v8::Utils::OpenHandle(*GetFunction(env.local(), func_name)));
CHECK(func->shared());
CHECK(func->shared()->abstract_code());
i::AbstractCode* code = func->abstract_code();
CHECK(code);
i::Address code_address = code->instruction_start();
CHECK(code_address);
CpuProfilesCollection* profiles = new CpuProfilesCollection(isolate);
ProfileGenerator* generator = new ProfileGenerator(profiles);
ProfilerEventsProcessor* processor = new ProfilerEventsProcessor(
generator, nullptr, v8::base::TimeDelta::FromMicroseconds(100));
CpuProfiler profiler(isolate, profiles, generator, processor);
profiles->StartProfiling("", false);
processor->Start();
ProfilerListener profiler_listener(isolate);
isolate->code_event_dispatcher()->AddListener(&profiler_listener);
profiler_listener.AddObserver(&profiler);
// Enqueue code creation events.
i::Handle<i::String> str = factory->NewStringFromAsciiChecked(func_name);
int line = 1;
int column = 1;
profiler_listener.CodeCreateEvent(i::Logger::FUNCTION_TAG, code,
func->shared(), *str, line, column);
// Enqueue a tick event to enable code events processing.
EnqueueTickSampleEvent(processor, code_address);
profiler_listener.RemoveObserver(&profiler);
isolate->code_event_dispatcher()->RemoveListener(&profiler_listener);
processor->StopSynchronously();
CpuProfile* profile = profiles->StopProfiling("");
CHECK(profile);
// Check the state of profile generator.
CodeEntry* func_entry = generator->code_map()->FindEntry(code_address);
CHECK(func_entry);
CHECK_EQ(0, strcmp(func_name, func_entry->name()));
const i::JITLineInfoTable* line_info = func_entry->line_info();
CHECK(line_info);
CHECK(!line_info->empty());
// Check the hit source lines using V8 Public APIs.
const i::ProfileTree* tree = profile->top_down();
ProfileNode* root = tree->root();
CHECK(root);
ProfileNode* func_node = root->FindChild(func_entry);
CHECK(func_node);
// Add 10 faked ticks to source line #5.
int hit_line = 5;
int hit_count = 10;
for (int i = 0; i < hit_count; i++) func_node->IncrementLineTicks(hit_line);
unsigned int line_count = func_node->GetHitLineCount();
CHECK_EQ(2u, line_count); // Expect two hit source lines - #1 and #5.
ScopedVector<v8::CpuProfileNode::LineTick> entries(line_count);
CHECK(func_node->GetLineTicks(&entries[0], line_count));
int value = 0;
for (int i = 0; i < entries.length(); i++)
if (entries[i].line == hit_line) {
value = entries[i].hit_count;
break;
}
CHECK_EQ(hit_count, value);
}
TEST(TickLinesBaseline) { TickLines(false); }
TEST(TickLinesOptimized) { TickLines(true); }
static const char* call_function_test_source =
"%NeverOptimizeFunction(bar);\n"
"%NeverOptimizeFunction(start);\n"
"function bar(n) {\n"
" var s = 0;\n"
" for (var i = 0; i < n; i++) s += i * i * i;\n"
" return s;\n"
"}\n"
"function start(duration) {\n"
" var start = Date.now();\n"
" do {\n"
" for (var i = 0; i < 100; ++i)\n"
" bar.call(this, 1000);\n"
" } while (Date.now() - start < duration);\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) {
i::FLAG_allow_natives_syntax = true;
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
// Collect garbage that might have be generated while installing
// extensions.
CcTest::heap()->CollectAllGarbage();
CompileRun(call_function_test_source);
v8::Local<v8::Function> function = GetFunction(env.local(), "start");
int32_t duration_ms = 100;
v8::Local<v8::Value> args[] = {
v8::Integer::New(env->GetIsolate(), duration_ms)};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 1000);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env.local(), root, "start");
GetChild(env.local(), start_node, "bar");
const v8::CpuProfileNode* unresolved_node =
FindChild(env.local(), root, i::CodeEntry::kUnresolvedFunctionName);
CHECK(!unresolved_node || GetChild(env.local(), unresolved_node, "call"));
profile->Delete();
}
static const char* function_apply_test_source =
"%NeverOptimizeFunction(bar);\n"
"%NeverOptimizeFunction(test);\n"
"%NeverOptimizeFunction(start);\n"
"function bar(n) {\n"
" var s = 0;\n"
" for (var i = 0; i < n; i++) s += i * i * i;\n"
" return s;\n"
"}\n"
"function test() {\n"
" bar.apply(this, [1000]);\n"
"}\n"
"function start(duration) {\n"
" var start = Date.now();\n"
" do {\n"
" for (var i = 0; i < 100; ++i) test();\n"
" } while (Date.now() - start < duration);\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
// 10 10 (program) [-1] #0 2
TEST(FunctionApplySample) {
i::FLAG_allow_natives_syntax = true;
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
CompileRun(function_apply_test_source);
v8::Local<v8::Function> function = GetFunction(env.local(), "start");
int32_t duration_ms = 100;
v8::Local<v8::Value> args[] = {
v8::Integer::New(env->GetIsolate(), duration_ms)};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 1000);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env.local(), root, "start");
const v8::CpuProfileNode* test_node =
GetChild(env.local(), start_node, "test");
GetChild(env.local(), test_node, "bar");
const v8::CpuProfileNode* unresolved_node =
FindChild(env.local(), start_node, CodeEntry::kUnresolvedFunctionName);
CHECK(!unresolved_node || GetChild(env.local(), unresolved_node, "apply"));
profile->Delete();
}
static const char* cpu_profiler_deep_stack_test_source =
"function foo(n) {\n"
" if (n)\n"
" foo(n - 1);\n"
" else\n"
" collectSample();\n"
"}\n"
"function start() {\n"
" startProfiling('my_profile');\n"
" foo(250);\n"
"}\n";
// Check a deep stack
//
// [Top down]:
// 0 (root) 0 #1
// 2 (program) 0 #2
// 0 start 21 #3 no reason
// 0 foo 21 #4 no reason
// 0 foo 21 #5 no reason
// ....
// 0 foo 21 #254 no reason
TEST(CpuProfileDeepStack) {
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
CompileRun(cpu_profiler_deep_stack_test_source);
v8::Local<v8::Function> function = GetFunction(env, "start");
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
v8::Local<v8::String> profile_name = v8_str("my_profile");
function->Call(env, env->Global(), 0, NULL).ToLocalChecked();
v8::CpuProfile* profile = cpu_profiler->StopProfiling(profile_name);
CHECK(profile);
// Dump collected profile to have a better diagnostic in case of failure.
reinterpret_cast<i::CpuProfile*>(profile)->Print();
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* node = GetChild(env, root, "start");
for (int i = 0; i <= 250; ++i) {
node = GetChild(env, node, "foo");
}
CHECK(!FindChild(env, node, "foo"));
profile->Delete();
}
static const char* js_native_js_test_source =
"%NeverOptimizeFunction(foo);\n"
"%NeverOptimizeFunction(bar);\n"
"%NeverOptimizeFunction(start);\n"
"function foo(n) {\n"
" var s = 0;\n"
" for (var i = 0; i < n; i++) s += i * i * i;\n"
" return s;\n"
"}\n"
"function bar() {\n"
" foo(1000);\n"
"}\n"
"function start() {\n"
" CallJsFunction(bar);\n"
"}";
static void CallJsFunction(const v8::FunctionCallbackInfo<v8::Value>& info) {
v8::Local<v8::Function> function = info[0].As<v8::Function>();
v8::Local<v8::Value> argv[] = {info[1]};
function->Call(info.GetIsolate()->GetCurrentContext(), info.This(),
arraysize(argv), argv)
.ToLocalChecked();
}
// [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) {
i::FLAG_allow_natives_syntax = true;
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::Local<v8::FunctionTemplate> func_template = v8::FunctionTemplate::New(
env->GetIsolate(), CallJsFunction);
v8::Local<v8::Function> func =
func_template->GetFunction(env).ToLocalChecked();
func->SetName(v8_str("CallJsFunction"));
env->Global()->Set(env, v8_str("CallJsFunction"), func).FromJust();
CompileRun(js_native_js_test_source);
v8::Local<v8::Function> function = GetFunction(env, "start");
v8::CpuProfile* profile = RunProfiler(env, function, NULL, 0, 1000);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env, root, "start");
const v8::CpuProfileNode* native_node =
GetChild(env, start_node, "CallJsFunction");
const v8::CpuProfileNode* bar_node = GetChild(env, native_node, "bar");
GetChild(env, bar_node, "foo");
profile->Delete();
}
static const char* js_native_js_runtime_js_test_source =
"%NeverOptimizeFunction(foo);\n"
"%NeverOptimizeFunction(bar);\n"
"%NeverOptimizeFunction(start);\n"
"function foo(n) {\n"
" var s = 0;\n"
" for (var i = 0; i < n; i++) s += i * i * i;\n"
" return s;\n"
"}\n"
"var bound = foo.bind(this);\n"
"function bar() {\n"
" bound(1000);\n"
"}\n"
"function start() {\n"
" CallJsFunction(bar);\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) {
i::FLAG_allow_natives_syntax = true;
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::Local<v8::FunctionTemplate> func_template = v8::FunctionTemplate::New(
env->GetIsolate(), CallJsFunction);
v8::Local<v8::Function> func =
func_template->GetFunction(env).ToLocalChecked();
func->SetName(v8_str("CallJsFunction"));
env->Global()->Set(env, v8_str("CallJsFunction"), func).FromJust();
CompileRun(js_native_js_runtime_js_test_source);
v8::Local<v8::Function> function = GetFunction(env, "start");
v8::CpuProfile* profile = RunProfiler(env, function, NULL, 0, 1000);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env, root, "start");
const v8::CpuProfileNode* native_node =
GetChild(env, start_node, "CallJsFunction");
const v8::CpuProfileNode* bar_node = GetChild(env, native_node, "bar");
GetChild(env, bar_node, "foo");
profile->Delete();
}
static void CallJsFunction2(const v8::FunctionCallbackInfo<v8::Value>& info) {
v8::base::OS::Print("In CallJsFunction2\n");
CallJsFunction(info);
}
static const char* js_native1_js_native2_js_test_source =
"%NeverOptimizeFunction(foo);\n"
"%NeverOptimizeFunction(bar);\n"
"%NeverOptimizeFunction(start);\n"
"function foo() {\n"
" var s = 0;\n"
" for (var i = 0; i < 1000; i++) s += i * i * i;\n"
" return s;\n"
"}\n"
"function bar() {\n"
" CallJsFunction2(foo);\n"
"}\n"
"function start() {\n"
" CallJsFunction1(bar);\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) {
i::FLAG_allow_natives_syntax = true;
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::Local<v8::Function> func1 =
v8::FunctionTemplate::New(env->GetIsolate(), CallJsFunction)
->GetFunction(env)
.ToLocalChecked();
func1->SetName(v8_str("CallJsFunction1"));
env->Global()->Set(env, v8_str("CallJsFunction1"), func1).FromJust();
v8::Local<v8::Function> func2 =
v8::FunctionTemplate::New(env->GetIsolate(), CallJsFunction2)
->GetFunction(env)
.ToLocalChecked();
func2->SetName(v8_str("CallJsFunction2"));
env->Global()->Set(env, v8_str("CallJsFunction2"), func2).FromJust();
CompileRun(js_native1_js_native2_js_test_source);
v8::Local<v8::Function> function = GetFunction(env, "start");
v8::CpuProfile* profile = RunProfiler(env, function, NULL, 0, 1000);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env, root, "start");
const v8::CpuProfileNode* native_node1 =
GetChild(env, start_node, "CallJsFunction1");
const v8::CpuProfileNode* bar_node = GetChild(env, native_node1, "bar");
const v8::CpuProfileNode* native_node2 =
GetChild(env, bar_node, "CallJsFunction2");
GetChild(env, native_node2, "foo");
profile->Delete();
}
static const char* js_force_collect_sample_source =
"function start() {\n"
" CallCollectSample();\n"
"}";
TEST(CollectSampleAPI) {
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::Local<v8::FunctionTemplate> func_template =
v8::FunctionTemplate::New(env->GetIsolate(), CallCollectSample);
v8::Local<v8::Function> func =
func_template->GetFunction(env).ToLocalChecked();
func->SetName(v8_str("CallCollectSample"));
env->Global()->Set(env, v8_str("CallCollectSample"), func).FromJust();
CompileRun(js_force_collect_sample_source);
v8::Local<v8::Function> function = GetFunction(env, "start");
v8::CpuProfile* profile = RunProfiler(env, function, NULL, 0, 0);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env, root, "start");
CHECK_LE(1, start_node->GetChildrenCount());
GetChild(env, start_node, "CallCollectSample");
profile->Delete();
}
static const char* js_native_js_runtime_multiple_test_source =
"%NeverOptimizeFunction(foo);\n"
"%NeverOptimizeFunction(bar);\n"
"%NeverOptimizeFunction(start);\n"
"function foo() {\n"
" return Math.sin(Math.random());\n"
"}\n"
"var bound = foo.bind(this);\n"
"function bar() {\n"
" return bound();\n"
"}\n"
"function start() {\n"
" startProfiling('my_profile');\n"
" var startTime = Date.now();\n"
" do {\n"
" CallJsFunction(bar);\n"
" } while (Date.now() - startTime < 200);\n"
"}";
// The test check multiple entrances/exits between JS and native code.
//
// [Top down]:
// (root) #0 1
// start #16 3
// CallJsFunction #0 4
// bar #16 5
// foo #16 6
// (program) #0 2
TEST(JsNativeJsRuntimeJsSampleMultiple) {
i::FLAG_allow_natives_syntax = true;
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::Local<v8::FunctionTemplate> func_template =
v8::FunctionTemplate::New(env->GetIsolate(), CallJsFunction);
v8::Local<v8::Function> func =
func_template->GetFunction(env).ToLocalChecked();
func->SetName(v8_str("CallJsFunction"));
env->Global()->Set(env, v8_str("CallJsFunction"), func).FromJust();
CompileRun(js_native_js_runtime_multiple_test_source);
v8::Local<v8::Function> function = GetFunction(env, "start");
v8::CpuProfile* profile = RunProfiler(env, function, NULL, 0, 500, 500);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env, root, "start");
const v8::CpuProfileNode* native_node =
GetChild(env, start_node, "CallJsFunction");
const v8::CpuProfileNode* bar_node = GetChild(env, native_node, "bar");
GetChild(env, bar_node, "foo");
profile->Delete();
}
static const char* inlining_test_source =
"%NeverOptimizeFunction(action);\n"
"%NeverOptimizeFunction(start);\n"
"%OptimizeFunctionOnNextCall(level1);\n"
"%OptimizeFunctionOnNextCall(level2);\n"
"%OptimizeFunctionOnNextCall(level3);\n"
"var finish = false;\n"
"function action(n) {\n"
" var s = 0;\n"
" for (var i = 0; i < n; ++i) s += i*i*i;\n"
" if (finish)\n"
" startProfiling('my_profile');\n"
" return s;\n"
"}\n"
"function level3() { return action(100); }\n"
"function level2() { return level3() * 2; }\n"
"function level1() { return level2(); }\n"
"function start() {\n"
" var n = 100;\n"
" while (--n)\n"
" level1();\n"
" finish = true;\n"
" level1();\n"
"}";
// The test check multiple entrances/exits between JS and native code.
//
// [Top down]:
// (root) #0 1
// start #16 3
// level1 #0 4
// level2 #16 5
// level3 #16 6
// action #16 7
// (program) #0 2
TEST(Inlining) {
i::FLAG_allow_natives_syntax = true;
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
CompileRun(inlining_test_source);
v8::Local<v8::Function> function = GetFunction(env, "start");
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
v8::Local<v8::String> profile_name = v8_str("my_profile");
function->Call(env, env->Global(), 0, NULL).ToLocalChecked();
v8::CpuProfile* profile = cpu_profiler->StopProfiling(profile_name);
CHECK(profile);
// Dump collected profile to have a better diagnostic in case of failure.
reinterpret_cast<i::CpuProfile*>(profile)->Print();
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* start_node = GetChild(env, root, "start");
const v8::CpuProfileNode* level1_node = GetChild(env, start_node, "level1");
const v8::CpuProfileNode* level2_node = GetChild(env, level1_node, "level2");
const v8::CpuProfileNode* level3_node = GetChild(env, level2_node, "level3");
GetChild(env, level3_node, "action");
profile->Delete();
}
// [Top down]:
// 0 (root) #0 1
// 2 (program) #0 2
// 3 (idle) #0 3
TEST(IdleTime) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
v8::Local<v8::String> profile_name = v8_str("my_profile");
cpu_profiler->StartProfiling(profile_name);
i::Isolate* isolate = CcTest::i_isolate();
i::ProfilerEventsProcessor* processor = isolate->cpu_profiler()->processor();
processor->AddCurrentStack(isolate, true);
cpu_profiler->SetIdle(true);
for (int i = 0; i < 3; i++) {
processor->AddCurrentStack(isolate, true);
}
cpu_profiler->SetIdle(false);
processor->AddCurrentStack(isolate, true);
v8::CpuProfile* profile = cpu_profiler->StopProfiling(profile_name);
CHECK(profile);
// Dump collected profile to have a better diagnostic in case of failure.
reinterpret_cast<i::CpuProfile*>(profile)->Print();
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* program_node =
GetChild(env.local(), root, CodeEntry::kProgramEntryName);
CHECK_EQ(0, program_node->GetChildrenCount());
CHECK_GE(program_node->GetHitCount(), 2u);
const v8::CpuProfileNode* idle_node =
GetChild(env.local(), root, CodeEntry::kIdleEntryName);
CHECK_EQ(0, idle_node->GetChildrenCount());
CHECK_GE(idle_node->GetHitCount(), 3u);
profile->Delete();
}
static void CheckFunctionDetails(v8::Isolate* isolate,
const v8::CpuProfileNode* node,
const char* name, const char* script_name,
int script_id, int line, int column) {
v8::Local<v8::Context> context = isolate->GetCurrentContext();
CHECK(v8_str(name)->Equals(context, node->GetFunctionName()).FromJust());
CHECK(v8_str(script_name)
->Equals(context, node->GetScriptResourceName())
.FromJust());
CHECK_EQ(script_id, node->GetScriptId());
CHECK_EQ(line, node->GetLineNumber());
CHECK_EQ(column, node->GetColumnNumber());
}
TEST(FunctionDetails) {
i::FLAG_allow_natives_syntax = true;
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::Local<v8::Script> script_a = CompileWithOrigin(
"%NeverOptimizeFunction(foo);\n"
"%NeverOptimizeFunction(bar);\n"
" function foo\n() { bar(); }\n"
" function bar() { startProfiling(); }\n",
"script_a");
script_a->Run(env).ToLocalChecked();
v8::Local<v8::Script> script_b = CompileWithOrigin(
"%NeverOptimizeFunction(baz);"
"\n\n function baz() { foo(); }\n"
"\n\nbaz();\n"
"stopProfiling();\n",
"script_b");
script_b->Run(env).ToLocalChecked();
const v8::CpuProfile* profile = i::ProfilerExtension::last_profile;
const v8::CpuProfileNode* current = profile->GetTopDownRoot();
reinterpret_cast<ProfileNode*>(
const_cast<v8::CpuProfileNode*>(current))->Print(0);
// The tree should look like this:
// 0 (root) 0 #1
// 0 "" 19 #2 no reason script_b:1
// 0 baz 19 #3 TryCatchStatement script_b:3
// 0 foo 18 #4 TryCatchStatement script_a:2
// 1 bar 18 #5 no reason script_a:3
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* script = GetChild(env, root, "");
CheckFunctionDetails(env->GetIsolate(), script, "", "script_b",
script_b->GetUnboundScript()->GetId(), 1, 1);
const v8::CpuProfileNode* baz = GetChild(env, script, "baz");
CheckFunctionDetails(env->GetIsolate(), baz, "baz", "script_b",
script_b->GetUnboundScript()->GetId(), 3, 16);
const v8::CpuProfileNode* foo = GetChild(env, baz, "foo");
CheckFunctionDetails(env->GetIsolate(), foo, "foo", "script_a",
script_a->GetUnboundScript()->GetId(), 4, 1);
const v8::CpuProfileNode* bar = GetChild(env, foo, "bar");
CheckFunctionDetails(env->GetIsolate(), bar, "bar", "script_a",
script_a->GetUnboundScript()->GetId(), 5, 14);
}
TEST(DontStopOnFinishedProfileDelete) {
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::CpuProfiler* profiler = env->GetIsolate()->GetCpuProfiler();
i::CpuProfiler* iprofiler = reinterpret_cast<i::CpuProfiler*>(profiler);
CHECK_EQ(0, iprofiler->GetProfilesCount());
v8::Local<v8::String> outer = v8_str("outer");
profiler->StartProfiling(outer);
CHECK_EQ(0, iprofiler->GetProfilesCount());
v8::Local<v8::String> inner = v8_str("inner");
profiler->StartProfiling(inner);
CHECK_EQ(0, iprofiler->GetProfilesCount());
v8::CpuProfile* inner_profile = profiler->StopProfiling(inner);
CHECK(inner_profile);
CHECK_EQ(1, iprofiler->GetProfilesCount());
inner_profile->Delete();
inner_profile = NULL;
CHECK_EQ(0, iprofiler->GetProfilesCount());
v8::CpuProfile* outer_profile = profiler->StopProfiling(outer);
CHECK(outer_profile);
CHECK_EQ(1, iprofiler->GetProfilesCount());
outer_profile->Delete();
outer_profile = NULL;
CHECK_EQ(0, iprofiler->GetProfilesCount());
}
const char* GetBranchDeoptReason(v8::Local<v8::Context> context,
i::CpuProfile* iprofile, const char* branch[],
int length) {
v8::CpuProfile* profile = reinterpret_cast<v8::CpuProfile*>(iprofile);
const ProfileNode* iopt_function = NULL;
iopt_function = GetSimpleBranch(context, profile, branch, length);
CHECK_EQ(1U, iopt_function->deopt_infos().size());
return iopt_function->deopt_infos()[0].deopt_reason;
}
// deopt at top function
TEST(CollectDeoptEvents) {
if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
i::FLAG_allow_natives_syntax = true;
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::Isolate* isolate = env->GetIsolate();
v8::CpuProfiler* profiler = isolate->GetCpuProfiler();
i::CpuProfiler* iprofiler = reinterpret_cast<i::CpuProfiler*>(profiler);
const char opt_source[] =
"function opt_function%d(value, depth) {\n"
" if (depth) return opt_function%d(value, depth - 1);\n"
"\n"
" return 10 / value;\n"
"}\n"
"\n";
for (int i = 0; i < 3; ++i) {
i::EmbeddedVector<char, sizeof(opt_source) + 100> buffer;
i::SNPrintF(buffer, opt_source, i, i);
v8::Script::Compile(env, v8_str(buffer.start()))
.ToLocalChecked()
->Run(env)
.ToLocalChecked();
}
const char* source =
"startProfiling();\n"
"\n"
"opt_function0(1, 1);\n"
"\n"
"%OptimizeFunctionOnNextCall(opt_function0)\n"
"\n"
"opt_function0(1, 1);\n"
"\n"
"opt_function0(undefined, 1);\n"
"\n"
"opt_function1(1, 1);\n"
"\n"
"%OptimizeFunctionOnNextCall(opt_function1)\n"
"\n"
"opt_function1(1, 1);\n"
"\n"
"opt_function1(NaN, 1);\n"
"\n"
"opt_function2(1, 1);\n"
"\n"
"%OptimizeFunctionOnNextCall(opt_function2)\n"
"\n"
"opt_function2(1, 1);\n"
"\n"
"opt_function2(0, 1);\n"
"\n"
"stopProfiling();\n"
"\n";
v8::Script::Compile(env, v8_str(source))
.ToLocalChecked()
->Run(env)
.ToLocalChecked();
i::CpuProfile* iprofile = iprofiler->GetProfile(0);
iprofile->Print();
/* The expected profile
[Top down]:
0 (root) 0 #1
23 32 #2
1 opt_function2 31 #7
1 opt_function2 31 #8
;;; deopted at script_id: 31 position: 106 with reason
'division by zero'.
2 opt_function0 29 #3
4 opt_function0 29 #4
;;; deopted at script_id: 29 position: 108 with reason 'not a
heap number'.
0 opt_function1 30 #5
1 opt_function1 30 #6
;;; deopted at script_id: 30 position: 108 with reason 'lost
precision or NaN'.
*/
{
const char* branch[] = {"", "opt_function0", "opt_function0"};
CHECK_EQ(reason(i::Deoptimizer::kNotAHeapNumber),
GetBranchDeoptReason(env, iprofile, branch, arraysize(branch)));
}
{
const char* branch[] = {"", "opt_function1", "opt_function1"};
const char* deopt_reason =
GetBranchDeoptReason(env, iprofile, branch, arraysize(branch));
if (deopt_reason != reason(i::Deoptimizer::kNaN) &&
deopt_reason != reason(i::Deoptimizer::kLostPrecisionOrNaN)) {
FATAL(deopt_reason);
}
}
{
const char* branch[] = {"", "opt_function2", "opt_function2"};
CHECK_EQ(reason(i::Deoptimizer::kDivisionByZero),
GetBranchDeoptReason(env, iprofile, branch, arraysize(branch)));
}
iprofiler->DeleteProfile(iprofile);
}
TEST(SourceLocation) {
i::FLAG_always_opt = true;
i::FLAG_hydrogen_track_positions = true;
LocalContext env;
v8::HandleScope scope(CcTest::isolate());
const char* source =
"function CompareStatementWithThis() {\n"
" if (this === 1) {}\n"
"}\n"
"CompareStatementWithThis();\n";
v8::Script::Compile(env.local(), v8_str(source))
.ToLocalChecked()
->Run(env.local())
.ToLocalChecked();
}
static const char* inlined_source =
"function opt_function(left, right) { var k = left / 10; var r = 10 / "
"right; return k + r; }\n";
// 0.........1.........2.........3.........4....*....5.........6......*..7
// deopt at the first level inlined function
TEST(DeoptAtFirstLevelInlinedSource) {
if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
i::FLAG_allow_natives_syntax = true;
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::Isolate* isolate = env->GetIsolate();
v8::CpuProfiler* profiler = isolate->GetCpuProfiler();
i::CpuProfiler* iprofiler = reinterpret_cast<i::CpuProfiler*>(profiler);
// 0.........1.........2.........3.........4.........5.........6.........7
const char* source =
"function test(left, right) { return opt_function(left, right); }\n"
"\n"
"startProfiling();\n"
"\n"
"test(10, 10);\n"
"\n"
"%OptimizeFunctionOnNextCall(test)\n"
"\n"
"test(10, 10);\n"
"\n"
"test(undefined, 10);\n"
"\n"
"stopProfiling();\n"
"\n";
v8::Local<v8::Script> inlined_script = v8_compile(inlined_source);
inlined_script->Run(env).ToLocalChecked();
int inlined_script_id = inlined_script->GetUnboundScript()->GetId();
v8::Local<v8::Script> script = v8_compile(source);
script->Run(env).ToLocalChecked();
int script_id = script->GetUnboundScript()->GetId();
i::CpuProfile* iprofile = iprofiler->GetProfile(0);
iprofile->Print();
/* The expected profile output
[Top down]:
0 (root) 0 #1
10 30 #2
1 test 30 #3
;;; deopted at script_id: 29 position: 45 with reason 'not a
heap number'.
;;; Inline point: script_id 30 position: 36.
4 opt_function 29 #4
*/
v8::CpuProfile* profile = reinterpret_cast<v8::CpuProfile*>(iprofile);
const char* branch[] = {"", "test"};
const ProfileNode* itest_node =
GetSimpleBranch(env, profile, branch, arraysize(branch));
const std::vector<v8::CpuProfileDeoptInfo>& deopt_infos =
itest_node->deopt_infos();
CHECK_EQ(1U, deopt_infos.size());
const v8::CpuProfileDeoptInfo& info = deopt_infos[0];
CHECK_EQ(reason(i::Deoptimizer::kNotAHeapNumber), info.deopt_reason);
CHECK_EQ(2U, info.stack.size());
CHECK_EQ(inlined_script_id, info.stack[0].script_id);
CHECK_EQ(offset(inlined_source, "left /"), info.stack[0].position);
CHECK_EQ(script_id, info.stack[1].script_id);
CHECK_EQ(offset(source, "opt_function(left,"), info.stack[1].position);
iprofiler->DeleteProfile(iprofile);
}
// deopt at the second level inlined function
TEST(DeoptAtSecondLevelInlinedSource) {
if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
i::FLAG_allow_natives_syntax = true;
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::Isolate* isolate = env->GetIsolate();
v8::CpuProfiler* profiler = isolate->GetCpuProfiler();
i::CpuProfiler* iprofiler = reinterpret_cast<i::CpuProfiler*>(profiler);
// 0.........1.........2.........3.........4.........5.........6.........7
const char* source =
"function test2(left, right) { return opt_function(left, right); }\n"
"function test1(left, right) { return test2(left, right); }\n"
"\n"
"startProfiling();\n"
"\n"
"test1(10, 10);\n"
"\n"
"%OptimizeFunctionOnNextCall(test1)\n"
"\n"
"test1(10, 10);\n"
"\n"
"test1(undefined, 10);\n"
"\n"
"stopProfiling();\n"
"\n";
v8::Local<v8::Script> inlined_script = v8_compile(inlined_source);
inlined_script->Run(env).ToLocalChecked();
int inlined_script_id = inlined_script->GetUnboundScript()->GetId();
v8::Local<v8::Script> script = v8_compile(source);
script->Run(env).ToLocalChecked();
int script_id = script->GetUnboundScript()->GetId();
i::CpuProfile* iprofile = iprofiler->GetProfile(0);
iprofile->Print();
/* The expected profile output
[Top down]:
0 (root) 0 #1
11 30 #2
1 test1 30 #3
;;; deopted at script_id: 29 position: 45 with reason 'not a
heap number'.
;;; Inline point: script_id 30 position: 37.
;;; Inline point: script_id 30 position: 103.
1 test2 30 #4
3 opt_function 29 #5
*/
v8::CpuProfile* profile = reinterpret_cast<v8::CpuProfile*>(iprofile);
const char* branch[] = {"", "test1"};
const ProfileNode* itest_node =
GetSimpleBranch(env, profile, branch, arraysize(branch));
const std::vector<v8::CpuProfileDeoptInfo>& deopt_infos =
itest_node->deopt_infos();
CHECK_EQ(1U, deopt_infos.size());
const v8::CpuProfileDeoptInfo info = deopt_infos[0];
CHECK_EQ(reason(i::Deoptimizer::kNotAHeapNumber), info.deopt_reason);
CHECK_EQ(3U, info.stack.size());
CHECK_EQ(inlined_script_id, info.stack[0].script_id);
CHECK_EQ(offset(inlined_source, "left /"), info.stack[0].position);
CHECK_EQ(script_id, info.stack[1].script_id);
CHECK_EQ(offset(source, "opt_function(left,"), info.stack[1].position);
CHECK_EQ(offset(source, "test2(left, right);"), info.stack[2].position);
iprofiler->DeleteProfile(iprofile);
}
// deopt in untracked function
TEST(DeoptUntrackedFunction) {
if (!CcTest::i_isolate()->use_crankshaft() || i::FLAG_always_opt) return;
i::FLAG_allow_natives_syntax = true;
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::Isolate* isolate = env->GetIsolate();
v8::CpuProfiler* profiler = isolate->GetCpuProfiler();
i::CpuProfiler* iprofiler = reinterpret_cast<i::CpuProfiler*>(profiler);
// 0.........1.........2.........3.........4.........5.........6.........7
const char* source =
"function test(left, right) { return opt_function(left, right); }\n"
"\n"
"test(10, 10);\n"
"\n"
"%OptimizeFunctionOnNextCall(test)\n"
"\n"
"test(10, 10);\n"
"\n"
"startProfiling();\n" // profiler started after compilation.
"\n"
"test(undefined, 10);\n"
"\n"
"stopProfiling();\n"
"\n";
v8::Local<v8::Script> inlined_script = v8_compile(inlined_source);
inlined_script->Run(env).ToLocalChecked();
v8::Local<v8::Script> script = v8_compile(source);
script->Run(env).ToLocalChecked();
i::CpuProfile* iprofile = iprofiler->GetProfile(0);
iprofile->Print();
v8::CpuProfile* profile = reinterpret_cast<v8::CpuProfile*>(iprofile);
const char* branch[] = {"", "test"};
const ProfileNode* itest_node =
GetSimpleBranch(env, profile, branch, arraysize(branch));
CHECK_EQ(0U, itest_node->deopt_infos().size());
iprofiler->DeleteProfile(iprofile);
}
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