runtime/jit/profiling_info_test.cc - LeafOS-Project/android_art - Gitiles

 /*
  * Copyright (C) 2016 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #include "profiling_info.h"

 #include <gtest/gtest.h>
 #include <stdio.h>

 #include "art_method-inl.h"
 #include "base/unix_file/fd_file.h"
 #include "class_linker-inl.h"
 #include "common_runtime_test.h"
 #include "dex/dex_file.h"
 #include "dex/dex_file_loader.h"
 #include "dex/method_reference.h"
 #include "dex/type_reference.h"
 #include "handle_scope-inl.h"
 #include "linear_alloc.h"
 #include "mirror/class-inl.h"
 #include "mirror/class_loader.h"
 #include "profile/profile_compilation_info.h"
 #include "profile/profile_test_helper.h"
 #include "scoped_thread_state_change-inl.h"

 namespace art HIDDEN {

 using Hotness = ProfileCompilationInfo::MethodHotness;

 class ProfileCompilationInfoTest : public CommonRuntimeTest {
  public:
   void PostRuntimeCreate() override {
     allocator_.reset(new ArenaAllocator(Runtime::Current()->GetArenaPool()));
   }

  protected:
   std::vector<ArtMethod*> GetVirtualMethods(jobject class_loader,
                                             const std::string& clazz) {
     ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
     Thread* self = Thread::Current();
     ScopedObjectAccess soa(self);
     StackHandleScope<1> hs(self);
     Handle<mirror::ClassLoader> h_loader(
         hs.NewHandle(self->DecodeJObject(class_loader)->AsClassLoader()));
     ObjPtr<mirror::Class> klass = class_linker->FindClass(self, clazz.c_str(), h_loader);

     const auto pointer_size = class_linker->GetImagePointerSize();
     std::vector<ArtMethod*> methods;
     for (auto& m : klass->GetVirtualMethods(pointer_size)) {
       methods.push_back(&m);
     }
     return methods;
   }

   uint32_t GetFd(const ScratchFile& file) {
     return static_cast<uint32_t>(file.GetFd());
   }

   bool SaveProfilingInfo(
       const std::string& filename,
       const std::vector<ArtMethod*>& methods,
       Hotness::Flag flags) {
     ProfileCompilationInfo info;
     std::vector<ProfileMethodInfo> profile_methods;
     profile_methods.reserve(methods.size());
     ScopedObjectAccess soa(Thread::Current());
     for (ArtMethod* method : methods) {
       profile_methods.emplace_back(
           MethodReference(method->GetDexFile(), method->GetDexMethodIndex()));
     }
     if (!info.AddMethods(profile_methods, flags)) {
       return false;
     }
     if (info.GetNumberOfMethods() != profile_methods.size()) {
       return false;
     }
     ProfileCompilationInfo file_profile;
     if (!file_profile.Load(filename, false)) {
       return false;
     }
     if (!info.MergeWith(file_profile)) {
       return false;
     }

     return info.Save(filename, nullptr);
   }

   // Saves the given art methods to a profile backed by 'filename' and adds
   // some fake inline caches to it. The added inline caches are returned in
   // the out map `profile_methods_map`.
   bool SaveProfilingInfoWithFakeInlineCaches(
       const std::string& filename,
       const std::vector<ArtMethod*>& methods,
       Hotness::Flag flags,
       /*out*/ SafeMap<ArtMethod*, ProfileMethodInfo>* profile_methods_map) {
     ProfileCompilationInfo info;
     std::vector<ProfileMethodInfo> profile_methods;
     ScopedObjectAccess soa(Thread::Current());
     for (ArtMethod* method : methods) {
       std::vector<ProfileMethodInfo::ProfileInlineCache> caches;
       // Monomorphic
       for (uint16_t dex_pc = 0; dex_pc < 11; dex_pc++) {
         std::vector<TypeReference> classes;
         classes.emplace_back(method->GetDexFile(), dex::TypeIndex(0));
         caches.emplace_back(dex_pc, /*is_missing_types*/false, classes);
       }
       // Polymorphic
       for (uint16_t dex_pc = 11; dex_pc < 22; dex_pc++) {
         std::vector<TypeReference> classes;
         for (uint16_t k = 0; k < InlineCache::kIndividualCacheSize / 2; k++) {
           classes.emplace_back(method->GetDexFile(), dex::TypeIndex(k));
         }
         caches.emplace_back(dex_pc, /*is_missing_types*/false, classes);
       }
       // Megamorphic
       for (uint16_t dex_pc = 22; dex_pc < 33; dex_pc++) {
         std::vector<TypeReference> classes;
         for (uint16_t k = 0; k < 2 * InlineCache::kIndividualCacheSize; k++) {
           classes.emplace_back(method->GetDexFile(), dex::TypeIndex(k));
         }
         caches.emplace_back(dex_pc, /*is_missing_types*/false, classes);
       }
       // Missing types
       for (uint16_t dex_pc = 33; dex_pc < 44; dex_pc++) {
         std::vector<TypeReference> classes;
         caches.emplace_back(dex_pc, /*is_missing_types*/true, classes);
       }
       ProfileMethodInfo pmi(MethodReference(method->GetDexFile(),
                                             method->GetDexMethodIndex()),
                             caches);
       profile_methods.push_back(pmi);
       profile_methods_map->Put(method, pmi);
     }

     if (!info.AddMethods(profile_methods, flags)
         || info.GetNumberOfMethods() != profile_methods.size()) {
       return false;
     }
     return info.Save(filename, nullptr);
   }

   // Creates an inline cache which will be destructed at the end of the test.
   ProfileCompilationInfo::InlineCacheMap* CreateInlineCacheMap() {
     used_inline_caches.emplace_back(new ProfileCompilationInfo::InlineCacheMap(
         std::less<uint16_t>(), allocator_->Adapter(kArenaAllocProfile)));
     return used_inline_caches.back().get();
   }

   // Cannot sizeof the actual arrays so hard code the values here.
   // They should not change anyway.
   static constexpr int kProfileMagicSize = 4;
   static constexpr int kProfileVersionSize = 4;

   std::unique_ptr<ArenaAllocator> allocator_;

   // Cache of inline caches generated during tests.
   // This makes it easier to pass data between different utilities and ensure that
   // caches are destructed at the end of the test.
   std::vector<std::unique_ptr<ProfileCompilationInfo::InlineCacheMap>> used_inline_caches;
 };

 TEST_F(ProfileCompilationInfoTest, SaveArtMethods) {
   ScratchFile profile;

   Thread* self = Thread::Current();
   jobject class_loader;
   {
     ScopedObjectAccess soa(self);
     class_loader = LoadDex("ProfileTestMultiDex");
   }
   ASSERT_NE(class_loader, nullptr);

   // Save virtual methods from Main.
   std::vector<ArtMethod*> main_methods = GetVirtualMethods(class_loader, "LMain;");
   ASSERT_TRUE(SaveProfilingInfo(
       profile.GetFilename(),
       main_methods,
       static_cast<Hotness::Flag>(Hotness::kFlagHot | Hotness::kFlagPostStartup)));

   // Check that what we saved is in the profile.
   ProfileCompilationInfo info1;
   ASSERT_TRUE(info1.Load(profile.GetFilename(), /*clear_if_invalid=*/false));
   ASSERT_EQ(info1.GetNumberOfMethods(), main_methods.size());
   {
     ScopedObjectAccess soa(self);
     for (ArtMethod* m : main_methods) {
       Hotness h = info1.GetMethodHotness(MethodReference(m->GetDexFile(), m->GetDexMethodIndex()));
       ASSERT_TRUE(h.IsHot());
       ASSERT_TRUE(h.IsPostStartup());
     }
   }

   // Save virtual methods from Second.
   std::vector<ArtMethod*> second_methods = GetVirtualMethods(class_loader, "LSecond;");
   ASSERT_TRUE(SaveProfilingInfo(
     profile.GetFilename(),
     second_methods,
     static_cast<Hotness::Flag>(Hotness::kFlagHot | Hotness::kFlagStartup)));

   // Check that what we saved is in the profile (methods form Main and Second).
   ProfileCompilationInfo info2;
   ASSERT_TRUE(info2.Load(profile.GetFilename(), /*clear_if_invalid=*/false));
   ASSERT_EQ(info2.GetNumberOfMethods(), main_methods.size() + second_methods.size());
   {
     ScopedObjectAccess soa(self);
     for (ArtMethod* m : main_methods) {
       Hotness h = info2.GetMethodHotness(MethodReference(m->GetDexFile(), m->GetDexMethodIndex()));
       ASSERT_TRUE(h.IsHot());
       ASSERT_TRUE(h.IsPostStartup());
     }
     for (ArtMethod* m : second_methods) {
       Hotness h = info2.GetMethodHotness(MethodReference(m->GetDexFile(), m->GetDexMethodIndex()));
       ASSERT_TRUE(h.IsHot());
       ASSERT_TRUE(h.IsStartup());
     }
   }
 }

 TEST_F(ProfileCompilationInfoTest, SaveArtMethodsWithInlineCaches) {
   ScratchFile profile;

   Thread* self = Thread::Current();
   jobject class_loader;
   {
     ScopedObjectAccess soa(self);
     class_loader = LoadDex("ProfileTestMultiDex");
   }
   ASSERT_NE(class_loader, nullptr);

   // Save virtual methods from Main.
   std::vector<ArtMethod*> main_methods = GetVirtualMethods(class_loader, "LMain;");

   SafeMap<ArtMethod*, ProfileMethodInfo> profile_methods_map;
   ASSERT_TRUE(SaveProfilingInfoWithFakeInlineCaches(
       profile.GetFilename(),
       main_methods,
       static_cast<Hotness::Flag>(Hotness::kFlagHot | Hotness::kFlagStartup),
       &profile_methods_map));

   // Check that what we saved is in the profile.
   ProfileCompilationInfo info;
   ASSERT_TRUE(info.Load(profile.GetFilename(), /*clear_if_invalid=*/false));
   ASSERT_EQ(info.GetNumberOfMethods(), main_methods.size());
   {
     ScopedObjectAccess soa(self);
     for (ArtMethod* m : main_methods) {
       MethodReference method_ref(m->GetDexFile(), m->GetDexMethodIndex());
       Hotness h = info.GetMethodHotness(method_ref);
       ASSERT_TRUE(h.IsHot());
       ASSERT_TRUE(h.IsStartup());
       const ProfileMethodInfo& pmi = profile_methods_map.find(m)->second;
       ProfileCompilationInfo::MethodHotness offline_hotness = info.GetMethodHotness(method_ref);
       ASSERT_TRUE(offline_hotness.IsHot());
       ASSERT_TRUE(ProfileTestHelper::EqualInlineCaches(
                       pmi.inline_caches, method_ref.dex_file, offline_hotness, info));
     }
   }
 }

 }  // namespace art
	/*
	* Copyright (C) 2016 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#include "profiling_info.h"

	#include <gtest/gtest.h>
	#include <stdio.h>

	#include "art_method-inl.h"
	#include "base/unix_file/fd_file.h"
	#include "class_linker-inl.h"
	#include "common_runtime_test.h"
	#include "dex/dex_file.h"
	#include "dex/dex_file_loader.h"
	#include "dex/method_reference.h"
	#include "dex/type_reference.h"
	#include "handle_scope-inl.h"
	#include "linear_alloc.h"
	#include "mirror/class-inl.h"
	#include "mirror/class_loader.h"
	#include "profile/profile_compilation_info.h"
	#include "profile/profile_test_helper.h"
	#include "scoped_thread_state_change-inl.h"

	namespace art HIDDEN {

	using Hotness = ProfileCompilationInfo::MethodHotness;

	class ProfileCompilationInfoTest : public CommonRuntimeTest {
	public:
	void PostRuntimeCreate() override {
	allocator_.reset(new ArenaAllocator(Runtime::Current()->GetArenaPool()));
	}

	protected:
	std::vector<ArtMethod*> GetVirtualMethods(jobject class_loader,
	const std::string& clazz) {
	ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
	Thread* self = Thread::Current();
	ScopedObjectAccess soa(self);
	StackHandleScope<1> hs(self);
	Handle<mirror::ClassLoader> h_loader(
	hs.NewHandle(self->DecodeJObject(class_loader)->AsClassLoader()));
	ObjPtr<mirror::Class> klass = class_linker->FindClass(self, clazz.c_str(), h_loader);

	const auto pointer_size = class_linker->GetImagePointerSize();
	std::vector<ArtMethod*> methods;
	for (auto& m : klass->GetVirtualMethods(pointer_size)) {
	methods.push_back(&m);
	}
	return methods;
	}

	uint32_t GetFd(const ScratchFile& file) {
	return static_cast<uint32_t>(file.GetFd());
	}

	bool SaveProfilingInfo(
	const std::string& filename,
	const std::vector<ArtMethod*>& methods,
	Hotness::Flag flags) {
	ProfileCompilationInfo info;
	std::vector<ProfileMethodInfo> profile_methods;
	profile_methods.reserve(methods.size());
	ScopedObjectAccess soa(Thread::Current());
	for (ArtMethod* method : methods) {
	profile_methods.emplace_back(
	MethodReference(method->GetDexFile(), method->GetDexMethodIndex()));
	}
	if (!info.AddMethods(profile_methods, flags)) {
	return false;
	}
	if (info.GetNumberOfMethods() != profile_methods.size()) {
	return false;
	}
	ProfileCompilationInfo file_profile;
	if (!file_profile.Load(filename, false)) {
	return false;
	}
	if (!info.MergeWith(file_profile)) {
	return false;
	}

	return info.Save(filename, nullptr);
	}

	// Saves the given art methods to a profile backed by 'filename' and adds
	// some fake inline caches to it. The added inline caches are returned in
	// the out map `profile_methods_map`.
	bool SaveProfilingInfoWithFakeInlineCaches(
	const std::string& filename,
	const std::vector<ArtMethod*>& methods,
	Hotness::Flag flags,
	/out/ SafeMap<ArtMethod, ProfileMethodInfo> profile_methods_map) {
	ProfileCompilationInfo info;
	std::vector<ProfileMethodInfo> profile_methods;
	ScopedObjectAccess soa(Thread::Current());
	for (ArtMethod* method : methods) {
	std::vector<ProfileMethodInfo::ProfileInlineCache> caches;
	// Monomorphic
	for (uint16_t dex_pc = 0; dex_pc < 11; dex_pc++) {
	std::vector<TypeReference> classes;
	classes.emplace_back(method->GetDexFile(), dex::TypeIndex(0));
	caches.emplace_back(dex_pc, /is_missing_types/false, classes);
	}
	// Polymorphic
	for (uint16_t dex_pc = 11; dex_pc < 22; dex_pc++) {
	std::vector<TypeReference> classes;
	for (uint16_t k = 0; k < InlineCache::kIndividualCacheSize / 2; k++) {
	classes.emplace_back(method->GetDexFile(), dex::TypeIndex(k));
	}
	caches.emplace_back(dex_pc, /is_missing_types/false, classes);
	}
	// Megamorphic
	for (uint16_t dex_pc = 22; dex_pc < 33; dex_pc++) {
	std::vector<TypeReference> classes;
	for (uint16_t k = 0; k < 2 * InlineCache::kIndividualCacheSize; k++) {
	classes.emplace_back(method->GetDexFile(), dex::TypeIndex(k));
	}
	caches.emplace_back(dex_pc, /is_missing_types/false, classes);
	}
	// Missing types
	for (uint16_t dex_pc = 33; dex_pc < 44; dex_pc++) {
	std::vector<TypeReference> classes;
	caches.emplace_back(dex_pc, /is_missing_types/true, classes);
	}
	ProfileMethodInfo pmi(MethodReference(method->GetDexFile(),
	method->GetDexMethodIndex()),
	caches);
	profile_methods.push_back(pmi);
	profile_methods_map->Put(method, pmi);
	}

	if (!info.AddMethods(profile_methods, flags)
	\|\| info.GetNumberOfMethods() != profile_methods.size()) {
	return false;
	}
	return info.Save(filename, nullptr);
	}

	// Creates an inline cache which will be destructed at the end of the test.
	ProfileCompilationInfo::InlineCacheMap* CreateInlineCacheMap() {
	used_inline_caches.emplace_back(new ProfileCompilationInfo::InlineCacheMap(
	std::less<uint16_t>(), allocator_->Adapter(kArenaAllocProfile)));
	return used_inline_caches.back().get();
	}

	// Cannot sizeof the actual arrays so hard code the values here.
	// They should not change anyway.
	static constexpr int kProfileMagicSize = 4;
	static constexpr int kProfileVersionSize = 4;

	std::unique_ptr<ArenaAllocator> allocator_;

	// Cache of inline caches generated during tests.
	// This makes it easier to pass data between different utilities and ensure that
	// caches are destructed at the end of the test.
	std::vector<std::unique_ptr<ProfileCompilationInfo::InlineCacheMap>> used_inline_caches;
	};

	TEST_F(ProfileCompilationInfoTest, SaveArtMethods) {
	ScratchFile profile;

	Thread* self = Thread::Current();
	jobject class_loader;
	{
	ScopedObjectAccess soa(self);
	class_loader = LoadDex("ProfileTestMultiDex");
	}
	ASSERT_NE(class_loader, nullptr);

	// Save virtual methods from Main.
	std::vector<ArtMethod*> main_methods = GetVirtualMethods(class_loader, "LMain;");
	ASSERT_TRUE(SaveProfilingInfo(
	profile.GetFilename(),
	main_methods,
	static_cast<Hotness::Flag>(Hotness::kFlagHot \| Hotness::kFlagPostStartup)));

	// Check that what we saved is in the profile.
	ProfileCompilationInfo info1;
	ASSERT_TRUE(info1.Load(profile.GetFilename(), /clear_if_invalid=/false));
	ASSERT_EQ(info1.GetNumberOfMethods(), main_methods.size());
	{
	ScopedObjectAccess soa(self);
	for (ArtMethod* m : main_methods) {
	Hotness h = info1.GetMethodHotness(MethodReference(m->GetDexFile(), m->GetDexMethodIndex()));
	ASSERT_TRUE(h.IsHot());
	ASSERT_TRUE(h.IsPostStartup());
	}
	}

	// Save virtual methods from Second.
	std::vector<ArtMethod*> second_methods = GetVirtualMethods(class_loader, "LSecond;");
	ASSERT_TRUE(SaveProfilingInfo(
	profile.GetFilename(),
	second_methods,
	static_cast<Hotness::Flag>(Hotness::kFlagHot \| Hotness::kFlagStartup)));

	// Check that what we saved is in the profile (methods form Main and Second).
	ProfileCompilationInfo info2;
	ASSERT_TRUE(info2.Load(profile.GetFilename(), /clear_if_invalid=/false));
	ASSERT_EQ(info2.GetNumberOfMethods(), main_methods.size() + second_methods.size());
	{
	ScopedObjectAccess soa(self);
	for (ArtMethod* m : main_methods) {
	Hotness h = info2.GetMethodHotness(MethodReference(m->GetDexFile(), m->GetDexMethodIndex()));
	ASSERT_TRUE(h.IsHot());
	ASSERT_TRUE(h.IsPostStartup());
	}
	for (ArtMethod* m : second_methods) {
	Hotness h = info2.GetMethodHotness(MethodReference(m->GetDexFile(), m->GetDexMethodIndex()));
	ASSERT_TRUE(h.IsHot());
	ASSERT_TRUE(h.IsStartup());
	}
	}
	}

	TEST_F(ProfileCompilationInfoTest, SaveArtMethodsWithInlineCaches) {
	ScratchFile profile;

	Thread* self = Thread::Current();
	jobject class_loader;
	{
	ScopedObjectAccess soa(self);
	class_loader = LoadDex("ProfileTestMultiDex");
	}
	ASSERT_NE(class_loader, nullptr);

	// Save virtual methods from Main.
	std::vector<ArtMethod*> main_methods = GetVirtualMethods(class_loader, "LMain;");

	SafeMap<ArtMethod*, ProfileMethodInfo> profile_methods_map;
	ASSERT_TRUE(SaveProfilingInfoWithFakeInlineCaches(
	profile.GetFilename(),
	main_methods,
	static_cast<Hotness::Flag>(Hotness::kFlagHot \| Hotness::kFlagStartup),
	&profile_methods_map));

	// Check that what we saved is in the profile.
	ProfileCompilationInfo info;
	ASSERT_TRUE(info.Load(profile.GetFilename(), /clear_if_invalid=/false));
	ASSERT_EQ(info.GetNumberOfMethods(), main_methods.size());
	{
	ScopedObjectAccess soa(self);
	for (ArtMethod* m : main_methods) {
	MethodReference method_ref(m->GetDexFile(), m->GetDexMethodIndex());
	Hotness h = info.GetMethodHotness(method_ref);
	ASSERT_TRUE(h.IsHot());
	ASSERT_TRUE(h.IsStartup());
	const ProfileMethodInfo& pmi = profile_methods_map.find(m)->second;
	ProfileCompilationInfo::MethodHotness offline_hotness = info.GetMethodHotness(method_ref);
	ASSERT_TRUE(offline_hotness.IsHot());
	ASSERT_TRUE(ProfileTestHelper::EqualInlineCaches(
	pmi.inline_caches, method_ref.dex_file, offline_hotness, info));
	}
	}
	}

	} // namespace art