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v8/test/cctest/test-profile-generator.cc
jochen@chromium.org c1da40c08d Mark deprecated APIs with relatively little use as deprecated 
BUG=none
R=svenpanne@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/91503002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18114 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-11-28 08:21:26 +00:00

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// Copyright 2010 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Tests of profiles generator and utilities.
#include "v8.h"
#include "profile-generator-inl.h"
#include "cctest.h"
#include "cpu-profiler.h"
#include "../include/v8-profiler.h"
using i::CodeEntry;
using i::CodeMap;
using i::CpuProfile;
using i::CpuProfiler;
using i::CpuProfilesCollection;
using i::ProfileNode;
using i::ProfileTree;
using i::ProfileGenerator;
using i::TickSample;
using i::Vector;
TEST(ProfileNodeFindOrAddChild) {
ProfileTree tree;
ProfileNode node(&tree, NULL);
CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
ProfileNode* childNode1 = node.FindOrAddChild(&entry1);
CHECK_NE(NULL, childNode1);
CHECK_EQ(childNode1, node.FindOrAddChild(&entry1));
CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
ProfileNode* childNode2 = node.FindOrAddChild(&entry2);
CHECK_NE(NULL, childNode2);
CHECK_NE(childNode1, childNode2);
CHECK_EQ(childNode1, node.FindOrAddChild(&entry1));
CHECK_EQ(childNode2, node.FindOrAddChild(&entry2));
CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
ProfileNode* childNode3 = node.FindOrAddChild(&entry3);
CHECK_NE(NULL, childNode3);
CHECK_NE(childNode1, childNode3);
CHECK_NE(childNode2, childNode3);
CHECK_EQ(childNode1, node.FindOrAddChild(&entry1));
CHECK_EQ(childNode2, node.FindOrAddChild(&entry2));
CHECK_EQ(childNode3, node.FindOrAddChild(&entry3));
}
TEST(ProfileNodeFindOrAddChildForSameFunction) {
const char* aaa = "aaa";
ProfileTree tree;
ProfileNode node(&tree, NULL);
CodeEntry entry1(i::Logger::FUNCTION_TAG, aaa);
ProfileNode* childNode1 = node.FindOrAddChild(&entry1);
CHECK_NE(NULL, childNode1);
CHECK_EQ(childNode1, node.FindOrAddChild(&entry1));
// The same function again.
CodeEntry entry2(i::Logger::FUNCTION_TAG, aaa);
CHECK_EQ(childNode1, node.FindOrAddChild(&entry2));
// Now with a different security token.
CodeEntry entry3(i::Logger::FUNCTION_TAG, aaa);
CHECK_EQ(childNode1, node.FindOrAddChild(&entry3));
}
namespace {
class ProfileTreeTestHelper {
public:
explicit ProfileTreeTestHelper(const ProfileTree* tree)
: tree_(tree) { }
ProfileNode* Walk(CodeEntry* entry1,
CodeEntry* entry2 = NULL,
CodeEntry* entry3 = NULL) {
ProfileNode* node = tree_->root();
node = node->FindChild(entry1);
if (node == NULL) return NULL;
if (entry2 != NULL) {
node = node->FindChild(entry2);
if (node == NULL) return NULL;
}
if (entry3 != NULL) {
node = node->FindChild(entry3);
}
return node;
}
private:
const ProfileTree* tree_;
};
} // namespace
TEST(ProfileTreeAddPathFromStart) {
CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
ProfileTree tree;
ProfileTreeTestHelper helper(&tree);
CHECK_EQ(NULL, helper.Walk(&entry1));
CHECK_EQ(NULL, helper.Walk(&entry2));
CHECK_EQ(NULL, helper.Walk(&entry3));
CodeEntry* path[] = {NULL, &entry1, NULL, &entry2, NULL, NULL, &entry3, NULL};
Vector<CodeEntry*> path_vec(path, sizeof(path) / sizeof(path[0]));
tree.AddPathFromStart(path_vec);
CHECK_EQ(NULL, helper.Walk(&entry2));
CHECK_EQ(NULL, helper.Walk(&entry3));
ProfileNode* node1 = helper.Walk(&entry1);
CHECK_NE(NULL, node1);
CHECK_EQ(0, node1->self_ticks());
CHECK_EQ(NULL, helper.Walk(&entry1, &entry1));
CHECK_EQ(NULL, helper.Walk(&entry1, &entry3));
ProfileNode* node2 = helper.Walk(&entry1, &entry2);
CHECK_NE(NULL, node2);
CHECK_NE(node1, node2);
CHECK_EQ(0, node2->self_ticks());
CHECK_EQ(NULL, helper.Walk(&entry1, &entry2, &entry1));
CHECK_EQ(NULL, helper.Walk(&entry1, &entry2, &entry2));
ProfileNode* node3 = helper.Walk(&entry1, &entry2, &entry3);
CHECK_NE(NULL, node3);
CHECK_NE(node1, node3);
CHECK_NE(node2, node3);
CHECK_EQ(1, node3->self_ticks());
tree.AddPathFromStart(path_vec);
CHECK_EQ(node1, helper.Walk(&entry1));
CHECK_EQ(node2, helper.Walk(&entry1, &entry2));
CHECK_EQ(node3, helper.Walk(&entry1, &entry2, &entry3));
CHECK_EQ(0, node1->self_ticks());
CHECK_EQ(0, node2->self_ticks());
CHECK_EQ(2, node3->self_ticks());
CodeEntry* path2[] = {&entry1, &entry2, &entry2};
Vector<CodeEntry*> path2_vec(path2, sizeof(path2) / sizeof(path2[0]));
tree.AddPathFromStart(path2_vec);
CHECK_EQ(NULL, helper.Walk(&entry2));
CHECK_EQ(NULL, helper.Walk(&entry3));
CHECK_EQ(node1, helper.Walk(&entry1));
CHECK_EQ(NULL, helper.Walk(&entry1, &entry1));
CHECK_EQ(NULL, helper.Walk(&entry1, &entry3));
CHECK_EQ(node2, helper.Walk(&entry1, &entry2));
CHECK_EQ(NULL, helper.Walk(&entry1, &entry2, &entry1));
CHECK_EQ(node3, helper.Walk(&entry1, &entry2, &entry3));
CHECK_EQ(2, node3->self_ticks());
ProfileNode* node4 = helper.Walk(&entry1, &entry2, &entry2);
CHECK_NE(NULL, node4);
CHECK_NE(node3, node4);
CHECK_EQ(1, node4->self_ticks());
}
TEST(ProfileTreeAddPathFromEnd) {
CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
ProfileTree tree;
ProfileTreeTestHelper helper(&tree);
CHECK_EQ(NULL, helper.Walk(&entry1));
CHECK_EQ(NULL, helper.Walk(&entry2));
CHECK_EQ(NULL, helper.Walk(&entry3));
CodeEntry* path[] = {NULL, &entry3, NULL, &entry2, NULL, NULL, &entry1, NULL};
Vector<CodeEntry*> path_vec(path, sizeof(path) / sizeof(path[0]));
tree.AddPathFromEnd(path_vec);
CHECK_EQ(NULL, helper.Walk(&entry2));
CHECK_EQ(NULL, helper.Walk(&entry3));
ProfileNode* node1 = helper.Walk(&entry1);
CHECK_NE(NULL, node1);
CHECK_EQ(0, node1->self_ticks());
CHECK_EQ(NULL, helper.Walk(&entry1, &entry1));
CHECK_EQ(NULL, helper.Walk(&entry1, &entry3));
ProfileNode* node2 = helper.Walk(&entry1, &entry2);
CHECK_NE(NULL, node2);
CHECK_NE(node1, node2);
CHECK_EQ(0, node2->self_ticks());
CHECK_EQ(NULL, helper.Walk(&entry1, &entry2, &entry1));
CHECK_EQ(NULL, helper.Walk(&entry1, &entry2, &entry2));
ProfileNode* node3 = helper.Walk(&entry1, &entry2, &entry3);
CHECK_NE(NULL, node3);
CHECK_NE(node1, node3);
CHECK_NE(node2, node3);
CHECK_EQ(1, node3->self_ticks());
tree.AddPathFromEnd(path_vec);
CHECK_EQ(node1, helper.Walk(&entry1));
CHECK_EQ(node2, helper.Walk(&entry1, &entry2));
CHECK_EQ(node3, helper.Walk(&entry1, &entry2, &entry3));
CHECK_EQ(0, node1->self_ticks());
CHECK_EQ(0, node2->self_ticks());
CHECK_EQ(2, node3->self_ticks());
CodeEntry* path2[] = {&entry2, &entry2, &entry1};
Vector<CodeEntry*> path2_vec(path2, sizeof(path2) / sizeof(path2[0]));
tree.AddPathFromEnd(path2_vec);
CHECK_EQ(NULL, helper.Walk(&entry2));
CHECK_EQ(NULL, helper.Walk(&entry3));
CHECK_EQ(node1, helper.Walk(&entry1));
CHECK_EQ(NULL, helper.Walk(&entry1, &entry1));
CHECK_EQ(NULL, helper.Walk(&entry1, &entry3));
CHECK_EQ(node2, helper.Walk(&entry1, &entry2));
CHECK_EQ(NULL, helper.Walk(&entry1, &entry2, &entry1));
CHECK_EQ(node3, helper.Walk(&entry1, &entry2, &entry3));
CHECK_EQ(2, node3->self_ticks());
ProfileNode* node4 = helper.Walk(&entry1, &entry2, &entry2);
CHECK_NE(NULL, node4);
CHECK_NE(node3, node4);
CHECK_EQ(1, node4->self_ticks());
}
TEST(ProfileTreeCalculateTotalTicks) {
ProfileTree empty_tree;
CHECK_EQ(0, empty_tree.root()->self_ticks());
empty_tree.root()->IncrementSelfTicks();
CHECK_EQ(1, empty_tree.root()->self_ticks());
CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
CodeEntry* e1_path[] = {&entry1};
Vector<CodeEntry*> e1_path_vec(
e1_path, sizeof(e1_path) / sizeof(e1_path[0]));
ProfileTree single_child_tree;
single_child_tree.AddPathFromStart(e1_path_vec);
single_child_tree.root()->IncrementSelfTicks();
CHECK_EQ(1, single_child_tree.root()->self_ticks());
ProfileTreeTestHelper single_child_helper(&single_child_tree);
ProfileNode* node1 = single_child_helper.Walk(&entry1);
CHECK_NE(NULL, node1);
CHECK_EQ(1, single_child_tree.root()->self_ticks());
CHECK_EQ(1, node1->self_ticks());
CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
CodeEntry* e1_e2_path[] = {&entry1, &entry2};
Vector<CodeEntry*> e1_e2_path_vec(
e1_e2_path, sizeof(e1_e2_path) / sizeof(e1_e2_path[0]));
ProfileTree flat_tree;
ProfileTreeTestHelper flat_helper(&flat_tree);
flat_tree.AddPathFromStart(e1_path_vec);
flat_tree.AddPathFromStart(e1_path_vec);
flat_tree.AddPathFromStart(e1_e2_path_vec);
flat_tree.AddPathFromStart(e1_e2_path_vec);
flat_tree.AddPathFromStart(e1_e2_path_vec);
// Results in {root,0,0} -> {entry1,0,2} -> {entry2,0,3}
CHECK_EQ(0, flat_tree.root()->self_ticks());
node1 = flat_helper.Walk(&entry1);
CHECK_NE(NULL, node1);
CHECK_EQ(2, node1->self_ticks());
ProfileNode* node2 = flat_helper.Walk(&entry1, &entry2);
CHECK_NE(NULL, node2);
CHECK_EQ(3, node2->self_ticks());
// Must calculate {root,5,0} -> {entry1,5,2} -> {entry2,3,3}
CHECK_EQ(0, flat_tree.root()->self_ticks());
CHECK_EQ(2, node1->self_ticks());
CodeEntry* e2_path[] = {&entry2};
Vector<CodeEntry*> e2_path_vec(
e2_path, sizeof(e2_path) / sizeof(e2_path[0]));
CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
CodeEntry* e3_path[] = {&entry3};
Vector<CodeEntry*> e3_path_vec(
e3_path, sizeof(e3_path) / sizeof(e3_path[0]));
ProfileTree wide_tree;
ProfileTreeTestHelper wide_helper(&wide_tree);
wide_tree.AddPathFromStart(e1_path_vec);
wide_tree.AddPathFromStart(e1_path_vec);
wide_tree.AddPathFromStart(e1_e2_path_vec);
wide_tree.AddPathFromStart(e2_path_vec);
wide_tree.AddPathFromStart(e2_path_vec);
wide_tree.AddPathFromStart(e2_path_vec);
wide_tree.AddPathFromStart(e3_path_vec);
wide_tree.AddPathFromStart(e3_path_vec);
wide_tree.AddPathFromStart(e3_path_vec);
wide_tree.AddPathFromStart(e3_path_vec);
// Results in -> {entry1,0,2} -> {entry2,0,1}
// {root,0,0} -> {entry2,0,3}
// -> {entry3,0,4}
CHECK_EQ(0, wide_tree.root()->self_ticks());
node1 = wide_helper.Walk(&entry1);
CHECK_NE(NULL, node1);
CHECK_EQ(2, node1->self_ticks());
ProfileNode* node1_2 = wide_helper.Walk(&entry1, &entry2);
CHECK_NE(NULL, node1_2);
CHECK_EQ(1, node1_2->self_ticks());
node2 = wide_helper.Walk(&entry2);
CHECK_NE(NULL, node2);
CHECK_EQ(3, node2->self_ticks());
ProfileNode* node3 = wide_helper.Walk(&entry3);
CHECK_NE(NULL, node3);
CHECK_EQ(4, node3->self_ticks());
// Calculates -> {entry1,3,2} -> {entry2,1,1}
// {root,10,0} -> {entry2,3,3}
// -> {entry3,4,4}
CHECK_EQ(0, wide_tree.root()->self_ticks());
CHECK_EQ(2, node1->self_ticks());
CHECK_EQ(1, node1_2->self_ticks());
CHECK_EQ(3, node2->self_ticks());
CHECK_EQ(4, node3->self_ticks());
}
static inline i::Address ToAddress(int n) {
return reinterpret_cast<i::Address>(n);
}
TEST(CodeMapAddCode) {
CodeMap code_map;
CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
CodeEntry entry4(i::Logger::FUNCTION_TAG, "ddd");
code_map.AddCode(ToAddress(0x1500), &entry1, 0x200);
code_map.AddCode(ToAddress(0x1700), &entry2, 0x100);
code_map.AddCode(ToAddress(0x1900), &entry3, 0x50);
code_map.AddCode(ToAddress(0x1950), &entry4, 0x10);
CHECK_EQ(NULL, code_map.FindEntry(0));
CHECK_EQ(NULL, code_map.FindEntry(ToAddress(0x1500 - 1)));
CHECK_EQ(&entry1, code_map.FindEntry(ToAddress(0x1500)));
CHECK_EQ(&entry1, code_map.FindEntry(ToAddress(0x1500 + 0x100)));
CHECK_EQ(&entry1, code_map.FindEntry(ToAddress(0x1500 + 0x200 - 1)));
CHECK_EQ(&entry2, code_map.FindEntry(ToAddress(0x1700)));
CHECK_EQ(&entry2, code_map.FindEntry(ToAddress(0x1700 + 0x50)));
CHECK_EQ(&entry2, code_map.FindEntry(ToAddress(0x1700 + 0x100 - 1)));
CHECK_EQ(NULL, code_map.FindEntry(ToAddress(0x1700 + 0x100)));
CHECK_EQ(NULL, code_map.FindEntry(ToAddress(0x1900 - 1)));
CHECK_EQ(&entry3, code_map.FindEntry(ToAddress(0x1900)));
CHECK_EQ(&entry3, code_map.FindEntry(ToAddress(0x1900 + 0x28)));
CHECK_EQ(&entry4, code_map.FindEntry(ToAddress(0x1950)));
CHECK_EQ(&entry4, code_map.FindEntry(ToAddress(0x1950 + 0x7)));
CHECK_EQ(&entry4, code_map.FindEntry(ToAddress(0x1950 + 0x10 - 1)));
CHECK_EQ(NULL, code_map.FindEntry(ToAddress(0x1950 + 0x10)));
CHECK_EQ(NULL, code_map.FindEntry(ToAddress(0xFFFFFFFF)));
}
TEST(CodeMapMoveAndDeleteCode) {
CodeMap code_map;
CodeEntry entry1(i::Logger::FUNCTION_TAG, "aaa");
CodeEntry entry2(i::Logger::FUNCTION_TAG, "bbb");
code_map.AddCode(ToAddress(0x1500), &entry1, 0x200);
code_map.AddCode(ToAddress(0x1700), &entry2, 0x100);
CHECK_EQ(&entry1, code_map.FindEntry(ToAddress(0x1500)));
CHECK_EQ(&entry2, code_map.FindEntry(ToAddress(0x1700)));
code_map.MoveCode(ToAddress(0x1500), ToAddress(0x1700)); // Deprecate bbb.
CHECK_EQ(NULL, code_map.FindEntry(ToAddress(0x1500)));
CHECK_EQ(&entry1, code_map.FindEntry(ToAddress(0x1700)));
CodeEntry entry3(i::Logger::FUNCTION_TAG, "ccc");
code_map.AddCode(ToAddress(0x1750), &entry3, 0x100);
CHECK_EQ(NULL, code_map.FindEntry(ToAddress(0x1700)));
CHECK_EQ(&entry3, code_map.FindEntry(ToAddress(0x1750)));
}
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(RecordTickSample) {
TestSetup test_setup;
CpuProfilesCollection profiles(CcTest::heap());
profiles.StartProfiling("", 1, false);
ProfileGenerator generator(&profiles);
CodeEntry* entry1 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "aaa");
CodeEntry* entry2 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "bbb");
CodeEntry* entry3 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "ccc");
generator.code_map()->AddCode(ToAddress(0x1500), entry1, 0x200);
generator.code_map()->AddCode(ToAddress(0x1700), entry2, 0x100);
generator.code_map()->AddCode(ToAddress(0x1900), entry3, 0x50);
// We are building the following calls tree:
// -> aaa - sample1
// aaa -> bbb -> ccc - sample2
// -> ccc -> aaa - sample3
TickSample sample1;
sample1.pc = ToAddress(0x1600);
sample1.tos = ToAddress(0x1500);
sample1.stack[0] = ToAddress(0x1510);
sample1.frames_count = 1;
generator.RecordTickSample(sample1);
TickSample sample2;
sample2.pc = ToAddress(0x1925);
sample2.tos = ToAddress(0x1900);
sample2.stack[0] = ToAddress(0x1780);
sample2.stack[1] = ToAddress(0x10000); // non-existent.
sample2.stack[2] = ToAddress(0x1620);
sample2.frames_count = 3;
generator.RecordTickSample(sample2);
TickSample sample3;
sample3.pc = ToAddress(0x1510);
sample3.tos = ToAddress(0x1500);
sample3.stack[0] = ToAddress(0x1910);
sample3.stack[1] = ToAddress(0x1610);
sample3.frames_count = 2;
generator.RecordTickSample(sample3);
CpuProfile* profile = profiles.StopProfiling("");
CHECK_NE(NULL, profile);
ProfileTreeTestHelper top_down_test_helper(profile->top_down());
CHECK_EQ(NULL, top_down_test_helper.Walk(entry2));
CHECK_EQ(NULL, top_down_test_helper.Walk(entry3));
ProfileNode* node1 = top_down_test_helper.Walk(entry1);
CHECK_NE(NULL, node1);
CHECK_EQ(entry1, node1->entry());
ProfileNode* node2 = top_down_test_helper.Walk(entry1, entry1);
CHECK_NE(NULL, node2);
CHECK_EQ(entry1, node2->entry());
ProfileNode* node3 = top_down_test_helper.Walk(entry1, entry2, entry3);
CHECK_NE(NULL, node3);
CHECK_EQ(entry3, node3->entry());
ProfileNode* node4 = top_down_test_helper.Walk(entry1, entry3, entry1);
CHECK_NE(NULL, node4);
CHECK_EQ(entry1, node4->entry());
}
static void CheckNodeIds(ProfileNode* node, int* expectedId) {
CHECK_EQ((*expectedId)++, node->id());
for (int i = 0; i < node->children()->length(); i++) {
CheckNodeIds(node->children()->at(i), expectedId);
}
}
TEST(SampleIds) {
TestSetup test_setup;
CpuProfilesCollection profiles(CcTest::heap());
profiles.StartProfiling("", 1, true);
ProfileGenerator generator(&profiles);
CodeEntry* entry1 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "aaa");
CodeEntry* entry2 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "bbb");
CodeEntry* entry3 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "ccc");
generator.code_map()->AddCode(ToAddress(0x1500), entry1, 0x200);
generator.code_map()->AddCode(ToAddress(0x1700), entry2, 0x100);
generator.code_map()->AddCode(ToAddress(0x1900), entry3, 0x50);
// We are building the following calls tree:
// -> aaa #3 - sample1
// (root)#1 -> aaa #2 -> bbb #4 -> ccc #5 - sample2
// -> ccc #6 -> aaa #7 - sample3
TickSample sample1;
sample1.pc = ToAddress(0x1600);
sample1.stack[0] = ToAddress(0x1510);
sample1.frames_count = 1;
generator.RecordTickSample(sample1);
TickSample sample2;
sample2.pc = ToAddress(0x1925);
sample2.stack[0] = ToAddress(0x1780);
sample2.stack[1] = ToAddress(0x10000); // non-existent.
sample2.stack[2] = ToAddress(0x1620);
sample2.frames_count = 3;
generator.RecordTickSample(sample2);
TickSample sample3;
sample3.pc = ToAddress(0x1510);
sample3.stack[0] = ToAddress(0x1910);
sample3.stack[1] = ToAddress(0x1610);
sample3.frames_count = 2;
generator.RecordTickSample(sample3);
CpuProfile* profile = profiles.StopProfiling("");
int nodeId = 1;
CheckNodeIds(profile->top_down()->root(), &nodeId);
CHECK_EQ(7, nodeId - 1);
CHECK_EQ(3, profile->samples_count());
int expected_id[] = {3, 5, 7};
for (int i = 0; i < 3; i++) {
CHECK_EQ(expected_id[i], profile->sample(i)->id());
}
}
TEST(NoSamples) {
TestSetup test_setup;
CpuProfilesCollection profiles(CcTest::heap());
profiles.StartProfiling("", 1, false);
ProfileGenerator generator(&profiles);
CodeEntry* entry1 = profiles.NewCodeEntry(i::Logger::FUNCTION_TAG, "aaa");
generator.code_map()->AddCode(ToAddress(0x1500), entry1, 0x200);
// We are building the following calls tree:
// (root)#1 -> aaa #2 -> aaa #3 - sample1
TickSample sample1;
sample1.pc = ToAddress(0x1600);
sample1.stack[0] = ToAddress(0x1510);
sample1.frames_count = 1;
generator.RecordTickSample(sample1);
CpuProfile* profile = profiles.StopProfiling("");
int nodeId = 1;
CheckNodeIds(profile->top_down()->root(), &nodeId);
CHECK_EQ(3, nodeId - 1);
CHECK_EQ(0, profile->samples_count());
}
// --- P r o f i l e r E x t e n s i o n ---
class ProfilerExtension : public v8::Extension {
public:
ProfilerExtension() : v8::Extension("v8/profiler", kSource) { }
virtual v8::Handle<v8::FunctionTemplate> GetNativeFunctionTemplate(
v8::Isolate* isolate,
v8::Handle<v8::String> name);
static void StartProfiling(const v8::FunctionCallbackInfo<v8::Value>& args);
static void StopProfiling(const v8::FunctionCallbackInfo<v8::Value>& args);
private:
static const char* kSource;
};
const char* ProfilerExtension::kSource =
"native function startProfiling();"
"native function stopProfiling();";
v8::Handle<v8::FunctionTemplate> ProfilerExtension::GetNativeFunctionTemplate(
v8::Isolate* isolate, v8::Handle<v8::String> name) {
if (name->Equals(v8::String::NewFromUtf8(isolate, "startProfiling"))) {
return v8::FunctionTemplate::New(ProfilerExtension::StartProfiling);
} else if (name->Equals(v8::String::NewFromUtf8(isolate, "stopProfiling"))) {
return v8::FunctionTemplate::New(ProfilerExtension::StopProfiling);
} else {
CHECK(false);
return v8::Handle<v8::FunctionTemplate>();
}
}
void ProfilerExtension::StartProfiling(
const v8::FunctionCallbackInfo<v8::Value>& args) {
v8::CpuProfiler* cpu_profiler = args.GetIsolate()->GetCpuProfiler();
if (args.Length() > 0)
cpu_profiler->StartCpuProfiling(args[0].As<v8::String>());
else
cpu_profiler->StartCpuProfiling(
v8::String::NewFromUtf8(args.GetIsolate(), ""));
}
void ProfilerExtension::StopProfiling(
const v8::FunctionCallbackInfo<v8::Value>& args) {
v8::CpuProfiler* cpu_profiler = args.GetIsolate()->GetCpuProfiler();
if (args.Length() > 0)
cpu_profiler->StopCpuProfiling(args[0].As<v8::String>());
else
cpu_profiler->StopCpuProfiling(
v8::String::NewFromUtf8(args.GetIsolate(), ""));
}
static ProfilerExtension kProfilerExtension;
v8::DeclareExtension kProfilerExtensionDeclaration(&kProfilerExtension);
static const ProfileNode* PickChild(const ProfileNode* parent,
const char* name) {
for (int i = 0; i < parent->children()->length(); ++i) {
const ProfileNode* child = parent->children()->at(i);
if (strcmp(child->entry()->name(), name) == 0) return child;
}
return NULL;
}
TEST(RecordStackTraceAtStartProfiling) {
// This test does not pass with inlining enabled since inlined functions
// don't appear in the stack trace.
i::FLAG_use_inlining = false;
v8::Isolate* isolate = CcTest::isolate();
v8::HandleScope scope(isolate);
const char* extensions[] = { "v8/profiler" };
v8::ExtensionConfiguration config(1, extensions);
v8::Local<v8::Context> context = v8::Context::New(isolate, &config);
context->Enter();
CpuProfiler* profiler = CcTest::i_isolate()->cpu_profiler();
CHECK_EQ(0, profiler->GetProfilesCount());
CompileRun(
"function c() { startProfiling(); }\n"
"function b() { c(); }\n"
"function a() { b(); }\n"
"a();\n"
"stopProfiling();");
CHECK_EQ(1, profiler->GetProfilesCount());
CpuProfile* profile = profiler->GetProfile(0);
const ProfileTree* topDown = profile->top_down();
const ProfileNode* current = topDown->root();
const_cast<ProfileNode*>(current)->Print(0);
// The tree should look like this:
// (root)
// (anonymous function)
// a
// b
// c
// There can also be:
// startProfiling
// if the sampler managed to get a tick.
current = PickChild(current, "(anonymous function)");
CHECK_NE(NULL, const_cast<ProfileNode*>(current));
current = PickChild(current, "a");
CHECK_NE(NULL, const_cast<ProfileNode*>(current));
current = PickChild(current, "b");
CHECK_NE(NULL, const_cast<ProfileNode*>(current));
current = PickChild(current, "c");
CHECK_NE(NULL, const_cast<ProfileNode*>(current));
CHECK(current->children()->length() == 0 ||
current->children()->length() == 1);
if (current->children()->length() == 1) {
current = PickChild(current, "startProfiling");
CHECK_EQ(0, current->children()->length());
}
}
TEST(Issue51919) {
CpuProfilesCollection collection(CcTest::heap());
i::EmbeddedVector<char*,
CpuProfilesCollection::kMaxSimultaneousProfiles> titles;
for (int i = 0; i < CpuProfilesCollection::kMaxSimultaneousProfiles; ++i) {
i::Vector<char> title = i::Vector<char>::New(16);
i::OS::SNPrintF(title, "%d", i);
// UID must be > 0.
CHECK(collection.StartProfiling(title.start(), i + 1, false));
titles[i] = title.start();
}
CHECK(!collection.StartProfiling(
"maximum", CpuProfilesCollection::kMaxSimultaneousProfiles + 1, false));
for (int i = 0; i < CpuProfilesCollection::kMaxSimultaneousProfiles; ++i)
i::DeleteArray(titles[i]);
}
static const v8::CpuProfileNode* PickChild(const v8::CpuProfileNode* parent,
const char* name) {
for (int i = 0; i < parent->GetChildrenCount(); ++i) {
const v8::CpuProfileNode* child = parent->GetChild(i);
v8::String::Utf8Value function_name(child->GetFunctionName());
if (strcmp(*function_name, name) == 0) return child;
}
return NULL;
}
TEST(ProfileNodeScriptId) {
// This test does not pass with inlining enabled since inlined functions
// don't appear in the stack trace.
i::FLAG_use_inlining = false;
const char* extensions[] = { "v8/profiler" };
v8::ExtensionConfiguration config(1, extensions);
LocalContext env(&config);
v8::HandleScope hs(env->GetIsolate());
v8::CpuProfiler* profiler = env->GetIsolate()->GetCpuProfiler();
CHECK_EQ(0, profiler->GetProfileCount());
v8::Handle<v8::Script> script_a = v8::Script::Compile(v8::String::NewFromUtf8(
env->GetIsolate(), "function a() { startProfiling(); }\n"));
script_a->Run();
v8::Handle<v8::Script> script_b =
v8::Script::Compile(v8::String::NewFromUtf8(env->GetIsolate(),
"function b() { a(); }\n"
"b();\n"
"stopProfiling();\n"));
script_b->Run();
CHECK_EQ(1, profiler->GetProfileCount());
const v8::CpuProfile* profile = profiler->GetCpuProfile(0);
const v8::CpuProfileNode* current = profile->GetTopDownRoot();
reinterpret_cast<ProfileNode*>(
const_cast<v8::CpuProfileNode*>(current))->Print(0);
// The tree should look like this:
// (root)
// (anonymous function)
// b
// a
// There can also be:
// startProfiling
// if the sampler managed to get a tick.
current = PickChild(current, i::ProfileGenerator::kAnonymousFunctionName);
CHECK_NE(NULL, const_cast<v8::CpuProfileNode*>(current));
current = PickChild(current, "b");
CHECK_NE(NULL, const_cast<v8::CpuProfileNode*>(current));
CHECK_EQ(script_b->GetId(), current->GetScriptId());
current = PickChild(current, "a");
CHECK_NE(NULL, const_cast<v8::CpuProfileNode*>(current));
CHECK_EQ(script_a->GetId(), current->GetScriptId());
}
static const char* line_number_test_source_existing_functions =
"function foo_at_the_first_line() {\n"
"}\n"
"foo_at_the_first_line();\n"
"function lazy_func_at_forth_line() {}\n";
static const char* line_number_test_source_profile_time_functions =
"// Empty first line\n"
"function bar_at_the_second_line() {\n"
" foo_at_the_first_line();\n"
"}\n"
"bar_at_the_second_line();\n"
"function lazy_func_at_6th_line() {}";
int GetFunctionLineNumber(LocalContext* env, const char* name) {
CpuProfiler* profiler = CcTest::i_isolate()->cpu_profiler();
CodeMap* code_map = profiler->generator()->code_map();
i::Handle<i::JSFunction> func = v8::Utils::OpenHandle(
*v8::Local<v8::Function>::Cast(
(*(*env))->Global()->Get(v8_str(name))));
CodeEntry* func_entry = code_map->FindEntry(func->code()->address());
if (!func_entry)
FATAL(name);
return func_entry->line_number();
}
TEST(LineNumber) {
i::FLAG_use_inlining = false;
CcTest::InitializeVM();
LocalContext env;
i::Isolate* isolate = CcTest::i_isolate();
TestSetup test_setup;
i::HandleScope scope(isolate);
CompileRun(line_number_test_source_existing_functions);
CpuProfiler* profiler = isolate->cpu_profiler();
profiler->StartProfiling("LineNumber");
CompileRun(line_number_test_source_profile_time_functions);
profiler->processor()->StopSynchronously();
CHECK_EQ(1, GetFunctionLineNumber(&env, "foo_at_the_first_line"));
CHECK_EQ(0, GetFunctionLineNumber(&env, "lazy_func_at_forth_line"));
CHECK_EQ(2, GetFunctionLineNumber(&env, "bar_at_the_second_line"));
CHECK_EQ(0, GetFunctionLineNumber(&env, "lazy_func_at_6th_line"));
profiler->StopProfiling("LineNumber");
}
TEST(BailoutReason) {
const char* extensions[] = { "v8/profiler" };
v8::ExtensionConfiguration config(1, extensions);
LocalContext env(&config);
v8::HandleScope hs(env->GetIsolate());
v8::CpuProfiler* profiler = env->GetIsolate()->GetCpuProfiler();
CHECK_EQ(0, profiler->GetProfileCount());
v8::Handle<v8::Script> script =
v8::Script::Compile(v8::String::NewFromUtf8(env->GetIsolate(),
"function TryCatch() {\n"
" try {\n"
" startProfiling();\n"
" } catch (e) { };\n"
"}\n"
"function TryFinally() {\n"
" try {\n"
" TryCatch();\n"
" } finally { };\n"
"}\n"
"TryFinally();\n"
"stopProfiling();"));
script->Run();
CHECK_EQ(1, profiler->GetProfileCount());
const v8::CpuProfile* profile = profiler->GetCpuProfile(0);
const v8::CpuProfileNode* current = profile->GetTopDownRoot();
reinterpret_cast<ProfileNode*>(
const_cast<v8::CpuProfileNode*>(current))->Print(0);
// The tree should look like this:
// (root)
// (anonymous function)
// kTryFinally
// kTryCatch
current = PickChild(current, i::ProfileGenerator::kAnonymousFunctionName);
CHECK_NE(NULL, const_cast<v8::CpuProfileNode*>(current));
current = PickChild(current, "TryFinally");
CHECK_NE(NULL, const_cast<v8::CpuProfileNode*>(current));
CHECK(!strcmp("TryFinallyStatement", current->GetBailoutReason()));
current = PickChild(current, "TryCatch");
CHECK_NE(NULL, const_cast<v8::CpuProfileNode*>(current));
CHECK(!strcmp("TryCatchStatement", current->GetBailoutReason()));
}
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