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v8/test/cctest/test-cpu-profiler.cc

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// Copyright 2010 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Tests of profiles generator and utilities.
#include "v8.h"
#include "cpu-profiler-inl.h"
#include "cctest.h"
#include "../include/v8-profiler.h"
using i::CodeEntry;
using i::CpuProfile;
using i::CpuProfiler;
using i::CpuProfilesCollection;
using i::ProfileGenerator;
using i::ProfileNode;
using i::ProfilerEventsProcessor;
using i::TokenEnumerator;
TEST(StartStop) {
CpuProfilesCollection profiles;
ProfileGenerator generator(&profiles);
ProfilerEventsProcessor processor(&generator);
processor.Start();
processor.Stop();
processor.Join();
}
static inline i::Address ToAddress(int n) {
return reinterpret_cast<i::Address>(n);
}
static void EnqueueTickSampleEvent(ProfilerEventsProcessor* proc,
i::Address frame1,
i::Address frame2 = NULL,
i::Address frame3 = NULL) {
i::TickSample* sample = proc->TickSampleEvent();
sample->pc = frame1;
sample->tos = frame1;
sample->frames_count = 0;
if (frame2 != NULL) {
sample->stack[0] = frame2;
sample->frames_count = 1;
}
if (frame3 != NULL) {
sample->stack[1] = frame3;
sample->frames_count = 2;
}
}
namespace {
class TestSetup {
public:
TestSetup()
: old_flag_prof_browser_mode_(i::FLAG_prof_browser_mode) {
i::FLAG_prof_browser_mode = false;
}
~TestSetup() {
i::FLAG_prof_browser_mode = old_flag_prof_browser_mode_;
}
private:
bool old_flag_prof_browser_mode_;
};
} // namespace
TEST(CodeEvents) {
CcTest::InitializeVM();
i::Isolate* isolate = i::Isolate::Current();
i::Heap* heap = isolate->heap();
i::Factory* factory = isolate->factory();
TestSetup test_setup;
CpuProfilesCollection profiles;
profiles.StartProfiling("", 1, false);
ProfileGenerator generator(&profiles);
ProfilerEventsProcessor processor(&generator);
processor.Start();
// Enqueue code creation events.
i::HandleScope scope(isolate);
const char* aaa_str = "aaa";
i::Handle<i::String> aaa_name = factory->NewStringFromAscii(
i::Vector<const char>(aaa_str, i::StrLength(aaa_str)));
processor.CodeCreateEvent(i::Logger::FUNCTION_TAG,
*aaa_name,
heap->empty_string(),
0,
ToAddress(0x1000),
0x100,
ToAddress(0x10000));
processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
"bbb",
ToAddress(0x1200),
0x80);
processor.CodeCreateEvent(i::Logger::STUB_TAG, 5, ToAddress(0x1300), 0x10);
processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
"ddd",
ToAddress(0x1400),
0x80);
processor.CodeMoveEvent(ToAddress(0x1400), ToAddress(0x1500));
processor.CodeCreateEvent(i::Logger::STUB_TAG, 3, ToAddress(0x1600), 0x10);
processor.CodeCreateEvent(i::Logger::STUB_TAG, 4, ToAddress(0x1605), 0x10);
// Enqueue a tick event to enable code events processing.
EnqueueTickSampleEvent(&processor, ToAddress(0x1000));
processor.Stop();
processor.Join();
// Check the state of profile generator.
CodeEntry* entry1 = generator.code_map()->FindEntry(ToAddress(0x1000));
CHECK_NE(NULL, entry1);
CHECK_EQ(aaa_str, entry1->name());
CodeEntry* entry2 = generator.code_map()->FindEntry(ToAddress(0x1200));
CHECK_NE(NULL, entry2);
CHECK_EQ("bbb", entry2->name());
CodeEntry* entry3 = generator.code_map()->FindEntry(ToAddress(0x1300));
CHECK_NE(NULL, entry3);
CHECK_EQ("5", entry3->name());
CHECK_EQ(NULL, generator.code_map()->FindEntry(ToAddress(0x1400)));
CodeEntry* entry4 = generator.code_map()->FindEntry(ToAddress(0x1500));
CHECK_NE(NULL, entry4);
CHECK_EQ("ddd", entry4->name());
CHECK_EQ(NULL, generator.code_map()->FindEntry(ToAddress(0x1600)));
}
template<typename T>
static int CompareProfileNodes(const T* p1, const T* p2) {
return strcmp((*p1)->entry()->name(), (*p2)->entry()->name());
}
TEST(TickEvents) {
TestSetup test_setup;
CpuProfilesCollection profiles;
profiles.StartProfiling("", 1, false);
ProfileGenerator generator(&profiles);
ProfilerEventsProcessor processor(&generator);
processor.Start();
processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
"bbb",
ToAddress(0x1200),
0x80);
processor.CodeCreateEvent(i::Logger::STUB_TAG, 5, ToAddress(0x1300), 0x10);
processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
"ddd",
ToAddress(0x1400),
0x80);
EnqueueTickSampleEvent(&processor, ToAddress(0x1210));
EnqueueTickSampleEvent(&processor, ToAddress(0x1305), ToAddress(0x1220));
EnqueueTickSampleEvent(&processor,
ToAddress(0x1404),
ToAddress(0x1305),
ToAddress(0x1230));
processor.Stop();
processor.Join();
CpuProfile* profile =
profiles.StopProfiling(TokenEnumerator::kNoSecurityToken, "", 1);
CHECK_NE(NULL, profile);
// Check call trees.
const i::List<ProfileNode*>* top_down_root_children =
profile->top_down()->root()->children();
CHECK_EQ(1, top_down_root_children->length());
CHECK_EQ("bbb", top_down_root_children->last()->entry()->name());
const i::List<ProfileNode*>* top_down_bbb_children =
top_down_root_children->last()->children();
CHECK_EQ(1, top_down_bbb_children->length());
CHECK_EQ("5", top_down_bbb_children->last()->entry()->name());
const i::List<ProfileNode*>* top_down_stub_children =
top_down_bbb_children->last()->children();
CHECK_EQ(1, top_down_stub_children->length());
CHECK_EQ("ddd", top_down_stub_children->last()->entry()->name());
const i::List<ProfileNode*>* top_down_ddd_children =
top_down_stub_children->last()->children();
CHECK_EQ(0, top_down_ddd_children->length());
}
// http://crbug/51594
// This test must not crash.
TEST(CrashIfStoppingLastNonExistentProfile) {
CcTest::InitializeVM();
TestSetup test_setup;
CpuProfiler* profiler = i::Isolate::Current()->cpu_profiler();
profiler->StartProfiling("1");
profiler->StopProfiling("2");
profiler->StartProfiling("1");
profiler->StopProfiling("");
}
// http://code.google.com/p/v8/issues/detail?id=1398
// Long stacks (exceeding max frames limit) must not be erased.
TEST(Issue1398) {
TestSetup test_setup;
CpuProfilesCollection profiles;
profiles.StartProfiling("", 1, false);
ProfileGenerator generator(&profiles);
ProfilerEventsProcessor processor(&generator);
processor.Start();
processor.CodeCreateEvent(i::Logger::BUILTIN_TAG,
"bbb",
ToAddress(0x1200),
0x80);
i::TickSample* sample = processor.TickSampleEvent();
sample->pc = ToAddress(0x1200);
sample->tos = 0;
sample->frames_count = i::TickSample::kMaxFramesCount;
for (int i = 0; i < sample->frames_count; ++i) {
sample->stack[i] = ToAddress(0x1200);
}
processor.Stop();
processor.Join();
CpuProfile* profile =
profiles.StopProfiling(TokenEnumerator::kNoSecurityToken, "", 1);
CHECK_NE(NULL, profile);
int actual_depth = 0;
const ProfileNode* node = profile->top_down()->root();
while (node->children()->length() > 0) {
node = node->children()->last();
++actual_depth;
}
CHECK_EQ(1 + i::TickSample::kMaxFramesCount, actual_depth); // +1 for PC.
}
TEST(DeleteAllCpuProfiles) {
CcTest::InitializeVM();
TestSetup test_setup;
CpuProfiler* profiler = i::Isolate::Current()->cpu_profiler();
CHECK_EQ(0, profiler->GetProfilesCount());
profiler->DeleteAllProfiles();
CHECK_EQ(0, profiler->GetProfilesCount());
profiler->StartProfiling("1");
profiler->StopProfiling("1");
CHECK_EQ(1, profiler->GetProfilesCount());
profiler->DeleteAllProfiles();
CHECK_EQ(0, profiler->GetProfilesCount());
profiler->StartProfiling("1");
profiler->StartProfiling("2");
profiler->StopProfiling("2");
profiler->StopProfiling("1");
CHECK_EQ(2, profiler->GetProfilesCount());
profiler->DeleteAllProfiles();
CHECK_EQ(0, profiler->GetProfilesCount());
// Test profiling cancellation by the 'delete' command.
profiler->StartProfiling("1");
profiler->StartProfiling("2");
CHECK_EQ(0, profiler->GetProfilesCount());
profiler->DeleteAllProfiles();
CHECK_EQ(0, profiler->GetProfilesCount());
}
TEST(DeleteCpuProfile) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
CHECK_EQ(0, cpu_profiler->GetProfileCount());
v8::Local<v8::String> name1 = v8::String::New("1");
cpu_profiler->StartCpuProfiling(name1);
const v8::CpuProfile* p1 = cpu_profiler->StopCpuProfiling(name1);
CHECK_NE(NULL, p1);
CHECK_EQ(1, cpu_profiler->GetProfileCount());
unsigned uid1 = p1->GetUid();
CHECK_EQ(p1, cpu_profiler->FindCpuProfile(uid1));
const_cast<v8::CpuProfile*>(p1)->Delete();
CHECK_EQ(0, cpu_profiler->GetProfileCount());
CHECK_EQ(NULL, cpu_profiler->FindCpuProfile(uid1));
v8::Local<v8::String> name2 = v8::String::New("2");
cpu_profiler->StartCpuProfiling(name2);
const v8::CpuProfile* p2 = cpu_profiler->StopCpuProfiling(name2);
CHECK_NE(NULL, p2);
CHECK_EQ(1, cpu_profiler->GetProfileCount());
unsigned uid2 = p2->GetUid();
CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid2));
CHECK_EQ(p2, cpu_profiler->FindCpuProfile(uid2));
CHECK_EQ(NULL, cpu_profiler->FindCpuProfile(uid1));
v8::Local<v8::String> name3 = v8::String::New("3");
cpu_profiler->StartCpuProfiling(name3);
const v8::CpuProfile* p3 = cpu_profiler->StopCpuProfiling(name3);
CHECK_NE(NULL, p3);
CHECK_EQ(2, cpu_profiler->GetProfileCount());
unsigned uid3 = p3->GetUid();
CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid3));
CHECK_EQ(p3, cpu_profiler->FindCpuProfile(uid3));
CHECK_EQ(NULL, cpu_profiler->FindCpuProfile(uid1));
const_cast<v8::CpuProfile*>(p2)->Delete();
CHECK_EQ(1, cpu_profiler->GetProfileCount());
CHECK_EQ(NULL, cpu_profiler->FindCpuProfile(uid2));
CHECK_EQ(p3, cpu_profiler->FindCpuProfile(uid3));
const_cast<v8::CpuProfile*>(p3)->Delete();
CHECK_EQ(0, cpu_profiler->GetProfileCount());
CHECK_EQ(NULL, cpu_profiler->FindCpuProfile(uid3));
CHECK_EQ(NULL, cpu_profiler->FindCpuProfile(uid2));
CHECK_EQ(NULL, cpu_profiler->FindCpuProfile(uid1));
}
TEST(DeleteCpuProfileDifferentTokens) {
LocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::CpuProfiler* cpu_profiler = env->GetIsolate()->GetCpuProfiler();
CHECK_EQ(0, cpu_profiler->GetProfileCount());
v8::Local<v8::String> name1 = v8::String::New("1");
cpu_profiler->StartCpuProfiling(name1);
const v8::CpuProfile* p1 = cpu_profiler->StopCpuProfiling(name1);
CHECK_NE(NULL, p1);
CHECK_EQ(1, cpu_profiler->GetProfileCount());
unsigned uid1 = p1->GetUid();
CHECK_EQ(p1, cpu_profiler->FindCpuProfile(uid1));
v8::Local<v8::String> token1 = v8::String::New("token1");
const v8::CpuProfile* p1_t1 = cpu_profiler->FindCpuProfile(uid1, token1);
CHECK_NE(NULL, p1_t1);
CHECK_NE(p1, p1_t1);
CHECK_EQ(1, cpu_profiler->GetProfileCount());
const_cast<v8::CpuProfile*>(p1)->Delete();
CHECK_EQ(0, cpu_profiler->GetProfileCount());
CHECK_EQ(NULL, cpu_profiler->FindCpuProfile(uid1));
CHECK_EQ(NULL, cpu_profiler->FindCpuProfile(uid1, token1));
const_cast<v8::CpuProfile*>(p1_t1)->Delete();
CHECK_EQ(0, cpu_profiler->GetProfileCount());
v8::Local<v8::String> name2 = v8::String::New("2");
cpu_profiler->StartCpuProfiling(name2);
v8::Local<v8::String> token2 = v8::String::New("token2");
const v8::CpuProfile* p2_t2 = cpu_profiler->StopCpuProfiling(name2, token2);
CHECK_NE(NULL, p2_t2);
CHECK_EQ(1, cpu_profiler->GetProfileCount());
unsigned uid2 = p2_t2->GetUid();
CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid2));
const v8::CpuProfile* p2 = cpu_profiler->FindCpuProfile(uid2);
CHECK_NE(p2_t2, p2);
v8::Local<v8::String> name3 = v8::String::New("3");
cpu_profiler->StartCpuProfiling(name3);
const v8::CpuProfile* p3 = cpu_profiler->StopCpuProfiling(name3);
CHECK_NE(NULL, p3);
CHECK_EQ(2, cpu_profiler->GetProfileCount());
unsigned uid3 = p3->GetUid();
CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid3));
CHECK_EQ(p3, cpu_profiler->FindCpuProfile(uid3));
const_cast<v8::CpuProfile*>(p2_t2)->Delete();
CHECK_EQ(1, cpu_profiler->GetProfileCount());
CHECK_EQ(NULL, cpu_profiler->FindCpuProfile(uid2));
CHECK_EQ(p3, cpu_profiler->FindCpuProfile(uid3));
const_cast<v8::CpuProfile*>(p2)->Delete();
CHECK_EQ(1, cpu_profiler->GetProfileCount());
CHECK_EQ(NULL, cpu_profiler->FindCpuProfile(uid2));
CHECK_EQ(p3, cpu_profiler->FindCpuProfile(uid3));
const_cast<v8::CpuProfile*>(p3)->Delete();
CHECK_EQ(0, cpu_profiler->GetProfileCount());
CHECK_EQ(NULL, cpu_profiler->FindCpuProfile(uid3));
}
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