AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity
9c105f0940
v8/test/cctest/test-cpu-profiler.cc
hpayer 9c105f0940 Force full GC whenever CollectAllGarbage is meant to trigger a full GC. 
Add a finalize incremental marking mode for CollectAllGarbage to finalize incremental marking when incremental marking is in progress, but we want a full gc at a given CollectAllGarbage call site.

Default mode for CollectAllGarbage is finalize incremental marking and perform a full GC.

BUG=

Review URL: https://codereview.chromium.org/1082973003

Cr-Commit-Position: refs/heads/master@{#27831}
2015-04-15 07:10:39 +00:00

2038 lines
66 KiB
C++
Raw Blame History

// 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/cpu-profiler-inl.h"
#include "src/deoptimizer.h"
#include "src/smart-pointers.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::ScopedVector;
using i::SmartPointer;
using i::Vector;
// Helper methods
static v8::Local<v8::Function> GetFunction(v8::Context* env, const char* name) {
return v8::Local<v8::Function>::Cast(env->Global()->Get(v8_str(name)));
}
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) {
i::Isolate* isolate = CcTest::i_isolate();
CpuProfilesCollection profiles(isolate->heap());
ProfileGenerator generator(&profiles);
SmartPointer<ProfilerEventsProcessor> processor(new ProfilerEventsProcessor(
&generator, NULL, 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::Code* 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 =
v8::Utils::OpenHandle(*GetFunction(**env, name_start));
return fun->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::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(isolate->heap());
profiles->StartProfiling("", false);
ProfileGenerator generator(profiles);
SmartPointer<ProfilerEventsProcessor> processor(new ProfilerEventsProcessor(
&generator, NULL, v8::base::TimeDelta::FromMicroseconds(100)));
processor->Start();
CpuProfiler profiler(isolate, profiles, &generator, processor.get());
// Enqueue code creation events.
const char* aaa_str = "aaa";
i::Handle<i::String> aaa_name = factory->NewStringFromAsciiChecked(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.get(), aaa_code->address());
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::Code* frame1_code = CreateCode(&env);
i::Code* frame2_code = CreateCode(&env);
i::Code* frame3_code = CreateCode(&env);
CpuProfilesCollection* profiles = new CpuProfilesCollection(isolate->heap());
profiles->StartProfiling("", false);
ProfileGenerator generator(profiles);
SmartPointer<ProfilerEventsProcessor> processor(new ProfilerEventsProcessor(
&generator, NULL, v8::base::TimeDelta::FromMicroseconds(100)));
processor->Start();
CpuProfiler profiler(isolate, profiles, &generator, processor.get());
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.get(), frame1_code->instruction_start());
EnqueueTickSampleEvent(
processor.get(),
frame2_code->instruction_start() + frame2_code->ExecutableSize() / 2,
frame1_code->instruction_start() + frame2_code->ExecutableSize() / 2);
EnqueueTickSampleEvent(
processor.get(),
frame3_code->instruction_end() - 1,
frame2_code->instruction_end() - 1,
frame1_code->instruction_end() - 1);
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());
}
// 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::Code* code = CreateCode(&env);
CpuProfilesCollection* profiles = new CpuProfilesCollection(isolate->heap());
profiles->StartProfiling("", false);
ProfileGenerator generator(profiles);
SmartPointer<ProfilerEventsProcessor> processor(new ProfilerEventsProcessor(
&generator, NULL, v8::base::TimeDelta::FromMicroseconds(100)));
processor->Start();
CpuProfiler profiler(isolate, profiles, &generator, processor.get());
profiler.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();
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::Handle<v8::Context> env, v8::Handle<v8::Function> function,
v8::Handle<v8::Value> argv[], int argc,
unsigned min_js_samples, bool collect_samples = false) {
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
v8::Local<v8::String> profile_name = v8_str("my_profile");
cpu_profiler->StartProfiling(profile_name, collect_samples);
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);
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 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();
if (!ContainsString(name, names)) {
char buffer[100];
i::SNPrintF(Vector<char>(buffer, arraysize(buffer)),
"Unexpected child '%s' found in '%s'",
*v8::String::Utf8Value(name),
*v8::String::Utf8Value(node->GetFunctionName()));
FATAL(buffer);
}
// Check that there are no duplicates.
for (int j = 0; j < count; j++) {
if (j == i) continue;
if (name->Equals(node->GetChild(j)->GetFunctionName())) {
char buffer[100];
i::SNPrintF(Vector<char>(buffer, arraysize(buffer)),
"Second child with the same name '%s' found in '%s'",
*v8::String::Utf8Value(name),
*v8::String::Utf8Value(node->GetFunctionName()));
FATAL(buffer);
}
}
}
}
static const v8::CpuProfileNode* FindChild(const v8::CpuProfileNode* node,
const char* name) {
int count = node->GetChildrenCount();
v8::Handle<v8::String> nameHandle = v8_str(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);
if (!result) {
char buffer[100];
i::SNPrintF(Vector<char>(buffer, arraysize(buffer)),
"Failed to GetChild: %s", name);
FATAL(buffer);
}
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 ProfileNode* GetSimpleBranch(v8::CpuProfile* profile,
const char* names[], int length) {
const v8::CpuProfileNode* node = profile->GetTopDownRoot();
for (int i = 0; i < length; i++) {
node = GetChild(node, names[i]);
}
return reinterpret_cast<const ProfileNode*>(node);
}
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());
CompileRun(cpu_profiler_test_source);
v8::Local<v8::Function> function = GetFunction(*env, "start");
int32_t profiling_interval_ms = 200;
v8::Handle<v8::Value> args[] = {
v8::Integer::New(env->GetIsolate(), profiling_interval_ms)
};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 200);
function->Call(env->Global(), arraysize(args), args);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8_str(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8_str(ProfileGenerator::kProgramEntryName);
names[2] = v8_str("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, arraysize(barBranch));
const char* bazBranch[] = { "baz", "delay", "loop" };
CheckSimpleBranch(fooNode, bazBranch, arraysize(bazBranch));
const char* delayBranch[] = { "delay", "loop" };
CheckSimpleBranch(fooNode, delayBranch, arraysize(delayBranch));
profile->Delete();
}
static const char* hot_deopt_no_frame_entry_test_source =
"function foo(a, b) {\n"
" try {\n"
" return a + b;\n"
" } catch (e) { }\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 funcion.
// 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) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
CompileRun(hot_deopt_no_frame_entry_test_source);
v8::Local<v8::Function> function = GetFunction(*env, "start");
int32_t profiling_interval_ms = 200;
v8::Handle<v8::Value> args[] = {
v8::Integer::New(env->GetIsolate(), profiling_interval_ms)
};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 200);
function->Call(env->Global(), arraysize(args), args);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8_str(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8_str(ProfileGenerator::kProgramEntryName);
names[2] = v8_str("start");
CheckChildrenNames(root, names);
const v8::CpuProfileNode* startNode = GetChild(root, "start");
CHECK_EQ(1, startNode->GetChildrenCount());
GetChild(startNode, "foo");
profile->Delete();
}
TEST(CollectCpuProfileSamples) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
CompileRun(cpu_profiler_test_source);
v8::Local<v8::Function> function = GetFunction(*env, "start");
int32_t profiling_interval_ms = 200;
v8::Handle<v8::Value> args[] = {
v8::Integer::New(env->GetIsolate(), profiling_interval_ms)
};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 200, 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 = "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 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) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
CompileRun(cpu_profiler_test_source2);
v8::Local<v8::Function> function = GetFunction(*env, "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(env->GetIsolate(), repeat_count)
};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8_str(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8_str(ProfileGenerator::kProgramEntryName);
names[2] = v8_str("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");
}
}
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(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();
v8::Local<v8::Object> instance = func->NewInstance();
env->Global()->Set(v8_str("instance"), instance);
CompileRun(native_accessor_test_source);
v8::Local<v8::Function> function = GetFunction(*env, "start");
int32_t repeat_count = 1;
v8::Handle<v8::Value> args[] = { v8::Integer::New(isolate, repeat_count) };
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 180);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* startNode = GetChild(root, "start");
GetChild(startNode, "get foo");
GetChild(startNode, "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();
v8::Local<v8::Object> instance = func->NewInstance();
env->Global()->Set(v8_str("instance"), instance);
CompileRun(native_accessor_test_source);
v8::Local<v8::Function> function = GetFunction(*env, "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(isolate, warm_up_iterations)
};
function->Call(env->Global(), arraysize(args), args);
accessors.set_warming_up(false);
}
int32_t repeat_count = 100;
v8::Handle<v8::Value> args[] = { v8::Integer::New(isolate, repeat_count) };
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 200);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* startNode = GetChild(root, "start");
GetChild(startNode, "get foo");
GetChild(startNode, "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();
v8::Local<v8::Object> instance = func->NewInstance();
env->Global()->Set(v8_str("instance"), instance);
CompileRun(native_method_test_source);
v8::Local<v8::Function> function = GetFunction(*env, "start");
int32_t repeat_count = 1;
v8::Handle<v8::Value> args[] = { v8::Integer::New(isolate, repeat_count) };
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
const v8::CpuProfileNode* startNode = GetChild(root, "start");
GetChild(startNode, "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();
v8::Local<v8::Object> instance = func->NewInstance();
env->Global()->Set(v8_str("instance"), instance);
CompileRun(native_method_test_source);
v8::Local<v8::Function> function = GetFunction(*env, "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(isolate, warm_up_iterations)
};
function->Call(env->Global(), arraysize(args), args);
callbacks.set_warming_up(false);
}
int32_t repeat_count = 100;
v8::Handle<v8::Value> args[] = { v8::Integer::New(isolate, repeat_count) };
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
GetChild(root, "start");
const v8::CpuProfileNode* startNode = GetChild(root, "start");
GetChild(startNode, "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, 0);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8_str(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8_str(ProfileGenerator::kProgramEntryName);
names[2] = v8_str("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");
profile->Delete();
}
// This tests checks distribution of the samples through the source lines.
TEST(TickLines) {
CcTest::InitializeVM();
LocalContext env;
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";
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();\n",
func_name, func_name);
CompileRun(script.start());
i::Handle<i::JSFunction> func =
v8::Utils::OpenHandle(*GetFunction(*env, func_name));
CHECK(func->shared());
CHECK(func->shared()->code());
i::Code* code = NULL;
if (func->code()->is_optimized_code()) {
code = func->code();
} else {
CHECK(func->shared()->code() == func->code() || !i::FLAG_crankshaft);
code = func->shared()->code();
}
CHECK(code);
i::Address code_address = code->instruction_start();
CHECK(code_address);
CpuProfilesCollection* profiles = new CpuProfilesCollection(isolate->heap());
profiles->StartProfiling("", false);
ProfileGenerator generator(profiles);
SmartPointer<ProfilerEventsProcessor> processor(new ProfilerEventsProcessor(
&generator, NULL, v8::base::TimeDelta::FromMicroseconds(100)));
processor->Start();
CpuProfiler profiler(isolate, profiles, &generator, processor.get());
// Enqueue code creation events.
i::Handle<i::String> str = factory->NewStringFromAsciiChecked(func_name);
int line = 1;
int column = 1;
profiler.CodeCreateEvent(i::Logger::FUNCTION_TAG, code, func->shared(), NULL,
*str, line, column);
// Enqueue a tick event to enable code events processing.
EnqueueTickSampleEvent(processor.get(), code_address);
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);
}
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.
CcTest::heap()->CollectAllGarbage();
CompileRun(call_function_test_source);
v8::Local<v8::Function> function = GetFunction(*env, "start");
int32_t duration_ms = 100;
v8::Handle<v8::Value> args[] = {
v8::Integer::New(env->GetIsolate(), duration_ms)
};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
{
ScopedVector<v8::Handle<v8::String> > names(4);
names[0] = v8_str(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8_str(ProfileGenerator::kProgramEntryName);
names[2] = v8_str("start");
names[3] = v8_str(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_str("bar");
names[1] = v8_str("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_str("call");
CheckChildrenNames(unresolvedNode, names);
}
profile->Delete();
}
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());
CompileRun(function_apply_test_source);
v8::Local<v8::Function> function = GetFunction(*env, "start");
int32_t duration_ms = 100;
v8::Handle<v8::Value> args[] = {
v8::Integer::New(env->GetIsolate(), duration_ms)
};
v8::CpuProfile* profile =
RunProfiler(env.local(), function, args, arraysize(args), 100);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
{
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8_str(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8_str(ProfileGenerator::kProgramEntryName);
names[2] = v8_str("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_str("test");
names[1] = v8_str(ProfileGenerator::kUnresolvedFunctionName);
CheckChildrenNames(startNode, names);
}
const v8::CpuProfileNode* testNode = FindChild(startNode, "test");
if (testNode) {
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8_str("bar");
names[1] = v8_str("apply");
// apply calls "get length" before invoking the function itself
// and we may get hit into it.
names[2] = v8_str("get length");
CheckChildrenNames(testNode, names);
}
if (const v8::CpuProfileNode* unresolvedNode =
FindChild(startNode, ProfileGenerator::kUnresolvedFunctionName)) {
ScopedVector<v8::Handle<v8::String> > names(1);
names[0] = v8_str("apply");
CheckChildrenNames(unresolvedNode, names);
GetChild(unresolvedNode, "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"
" startProfiling('my_profile');\n"
"}\n"
"function start() {\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 #253 no reason
// 1 startProfiling 0 #254
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->Global(), 0, NULL);
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();
{
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8_str(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8_str(ProfileGenerator::kProgramEntryName);
names[2] = v8_str("start");
CheckChildrenNames(root, names);
}
const v8::CpuProfileNode* node = GetChild(root, "start");
for (int i = 0; i < 250; ++i) {
node = GetChild(node, "foo");
}
// TODO(alph):
// In theory there must be one more 'foo' and a 'startProfiling' nodes,
// but due to unstable top frame extraction these might be missing.
profile->Delete();
}
static const char* js_native_js_test_source =
"function foo() {\n"
" startProfiling('my_profile');\n"
"}\n"
"function bar() {\n"
" try { foo(); } catch(e) {}\n"
"}\n"
"function start() {\n"
" try {\n"
" CallJsFunction(bar);\n"
" } catch(e) {}\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(), arraysize(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) {
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();
func->SetName(v8_str("CallJsFunction"));
env->Global()->Set(v8_str("CallJsFunction"), func);
CompileRun(js_native_js_test_source);
v8::Local<v8::Function> function = GetFunction(*env, "start");
v8::CpuProfile* profile = RunProfiler(env, function, NULL, 0, 0);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
{
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8_str(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8_str(ProfileGenerator::kProgramEntryName);
names[2] = v8_str("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");
profile->Delete();
}
static const char* js_native_js_runtime_js_test_source =
"function foo() {\n"
" startProfiling('my_profile');\n"
"}\n"
"var bound = foo.bind(this);\n"
"function bar() {\n"
" try { bound(); } catch(e) {}\n"
"}\n"
"function start() {\n"
" try {\n"
" CallJsFunction(bar);\n"
" } catch(e) {}\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) {
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();
func->SetName(v8_str("CallJsFunction"));
env->Global()->Set(v8_str("CallJsFunction"), func);
CompileRun(js_native_js_runtime_js_test_source);
v8::Local<v8::Function> function = GetFunction(*env, "start");
v8::CpuProfile* profile = RunProfiler(env, function, NULL, 0, 0);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8_str(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8_str(ProfileGenerator::kProgramEntryName);
names[2] = v8_str("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");
// The child is in fact a bound foo.
// A bound function has a wrapper that may make calls to
// other functions e.g. "get length".
CHECK_LE(1, barNode->GetChildrenCount());
CHECK_GE(2, barNode->GetChildrenCount());
GetChild(barNode, "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 =
"function foo() {\n"
" try {\n"
" startProfiling('my_profile');\n"
" } catch(e) {}\n"
"}\n"
"function bar() {\n"
" CallJsFunction2(foo);\n"
"}\n"
"function start() {\n"
" try {\n"
" CallJsFunction1(bar);\n"
" } catch(e) {}\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) {
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> func1 = func_template->GetFunction();
func1->SetName(v8_str("CallJsFunction1"));
env->Global()->Set(v8_str("CallJsFunction1"), func1);
v8::Local<v8::Function> func2 = v8::FunctionTemplate::New(
env->GetIsolate(), CallJsFunction2)->GetFunction();
func2->SetName(v8_str("CallJsFunction2"));
env->Global()->Set(v8_str("CallJsFunction2"), func2);
CompileRun(js_native1_js_native2_js_test_source);
v8::Local<v8::Function> function = GetFunction(*env, "start");
v8::CpuProfile* profile = RunProfiler(env, function, NULL, 0, 0);
const v8::CpuProfileNode* root = profile->GetTopDownRoot();
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8_str(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8_str(ProfileGenerator::kProgramEntryName);
names[2] = v8_str("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");
profile->Delete();
}
// [Top down]:
// 6 0 (root) #0 1
// 3 3 (program) #0 2
// 3 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);
cpu_profiler->SetIdle(true);
for (int i = 0; i < 3; i++) {
processor->AddCurrentStack(isolate);
}
cpu_profiler->SetIdle(false);
processor->AddCurrentStack(isolate);
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();
ScopedVector<v8::Handle<v8::String> > names(3);
names[0] = v8_str(ProfileGenerator::kGarbageCollectorEntryName);
names[1] = v8_str(ProfileGenerator::kProgramEntryName);
names[2] = v8_str(ProfileGenerator::kIdleEntryName);
CheckChildrenNames(root, names);
const v8::CpuProfileNode* programNode =
GetChild(root, ProfileGenerator::kProgramEntryName);
CHECK_EQ(0, programNode->GetChildrenCount());
CHECK_GE(programNode->GetHitCount(), 3u);
const v8::CpuProfileNode* idleNode =
GetChild(root, ProfileGenerator::kIdleEntryName);
CHECK_EQ(0, idleNode->GetChildrenCount());
CHECK_GE(idleNode->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) {
CHECK(v8_str(name)->Equals(node->GetFunctionName()));
CHECK(v8_str(script_name)->Equals(node->GetScriptResourceName()));
CHECK_EQ(script_id, node->GetScriptId());
CHECK_EQ(line, node->GetLineNumber());
CHECK_EQ(column, node->GetColumnNumber());
}
TEST(FunctionDetails) {
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = CcTest::NewContext(PROFILER_EXTENSION);
v8::Context::Scope context_scope(env);
v8::Handle<v8::Script> script_a = CompileWithOrigin(
" function foo\n() { try { bar(); } catch(e) {} }\n"
" function bar() { startProfiling(); }\n",
"script_a");
script_a->Run();
v8::Handle<v8::Script> script_b = CompileWithOrigin(
"\n\n function baz() { try { foo(); } catch(e) {} }\n"
"\n\nbaz();\n"
"stopProfiling();\n",
"script_b");
script_b->Run();
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(root, "");
CheckFunctionDetails(env->GetIsolate(), script, "", "script_b",
script_b->GetUnboundScript()->GetId(), 1, 1);
const v8::CpuProfileNode* baz = GetChild(script, "baz");
CheckFunctionDetails(env->GetIsolate(), baz, "baz", "script_b",
script_b->GetUnboundScript()->GetId(), 3, 16);
const v8::CpuProfileNode* foo = GetChild(baz, "foo");
CheckFunctionDetails(env->GetIsolate(), foo, "foo", "script_a",
script_a->GetUnboundScript()->GetId(), 2, 1);
const v8::CpuProfileNode* bar = GetChild(foo, "bar");
CheckFunctionDetails(env->GetIsolate(), bar, "bar", "script_a",
script_a->GetUnboundScript()->GetId(), 3, 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::Handle<v8::String> outer = v8_str("outer");
profiler->StartProfiling(outer);
CHECK_EQ(0, iprofiler->GetProfilesCount());
v8::Handle<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(i::CpuProfile* iprofile, const char* branch[],
int length) {
v8::CpuProfile* profile = reinterpret_cast<v8::CpuProfile*>(iprofile);
const ProfileNode* iopt_function = NULL;
iopt_function = GetSimpleBranch(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(v8_str(buffer.start()))->Run();
}
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(v8_str(source))->Run();
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(iprofile, branch, arraysize(branch)));
}
{
const char* branch[] = {"", "opt_function1", "opt_function1"};
const char* deopt_reason =
GetBranchDeoptReason(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(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(v8_str(source))->Run();
}
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::Handle<v8::Script> inlined_script = v8_compile(inlined_source);
inlined_script->Run();
int inlined_script_id = inlined_script->GetUnboundScript()->GetId();
v8::Handle<v8::Script> script = v8_compile(source);
script->Run();
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(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::Handle<v8::Script> inlined_script = v8_compile(inlined_source);
inlined_script->Run();
int inlined_script_id = inlined_script->GetUnboundScript()->GetId();
v8::Handle<v8::Script> script = v8_compile(source);
script->Run();
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(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::Handle<v8::Script> inlined_script = v8_compile(inlined_source);
inlined_script->Run();
v8::Handle<v8::Script> script = v8_compile(source);
script->Run();
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(profile, branch, arraysize(branch));
CHECK_EQ(0U, itest_node->deopt_infos().size());
iprofiler->DeleteProfile(iprofile);
}
Reference in New Issue View Git Blame Copy Permalink