/*
* 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 <gtest/gtest.h>
#include "base/unix_file/fd_file.h"
#include "common_runtime_test.h"
#include "profile_assistant.h"
#include "jit/offline_profiling_info.h"
#include "utils.h"
namespace art {
class ProfileAssistantTest : public CommonRuntimeTest {
protected:
void SetupProfile(const std::string& id,
uint32_t checksum,
uint16_t number_of_methods,
uint16_t number_of_classes,
const ScratchFile& profile,
ProfileCompilationInfo* info,
uint16_t start_method_index = 0) {
std::string dex_location1 = "location1" + id;
uint32_t dex_location_checksum1 = checksum;
std::string dex_location2 = "location2" + id;
uint32_t dex_location_checksum2 = 10 * checksum;
for (uint16_t i = start_method_index; i < start_method_index + number_of_methods; i++) {
ASSERT_TRUE(info->AddMethodIndex(dex_location1, dex_location_checksum1, i));
ASSERT_TRUE(info->AddMethodIndex(dex_location2, dex_location_checksum2, i));
}
for (uint16_t i = 0; i < number_of_classes; i++) {
ASSERT_TRUE(info->AddClassIndex(dex_location1, dex_location_checksum1, i));
}
ASSERT_TRUE(info->Save(GetFd(profile)));
ASSERT_EQ(0, profile.GetFile()->Flush());
ASSERT_TRUE(profile.GetFile()->ResetOffset());
}
int GetFd(const ScratchFile& file) const {
return static_cast<int>(file.GetFd());
}
void CheckProfileInfo(ScratchFile& file, const ProfileCompilationInfo& info) {
ProfileCompilationInfo file_info;
ASSERT_TRUE(file.GetFile()->ResetOffset());
ASSERT_TRUE(file_info.Load(GetFd(file)));
ASSERT_TRUE(file_info.Equals(info));
}
// Runs test with given arguments.
int ProcessProfiles(const std::vector<int>& profiles_fd, int reference_profile_fd) {
std::string file_path = GetTestAndroidRoot();
file_path += "/bin/profman";
if (kIsDebugBuild) {
file_path += "d";
}
EXPECT_TRUE(OS::FileExists(file_path.c_str())) << file_path << " should be a valid file path";
std::vector<std::string> argv_str;
argv_str.push_back(file_path);
for (size_t k = 0; k < profiles_fd.size(); k++) {
argv_str.push_back("--profile-file-fd=" + std::to_string(profiles_fd[k]));
}
argv_str.push_back("--reference-profile-file-fd=" + std::to_string(reference_profile_fd));
std::string error;
return ExecAndReturnCode(argv_str, &error);
}
};
TEST_F(ProfileAssistantTest, AdviseCompilationEmptyReferences) {
ScratchFile profile1;
ScratchFile profile2;
ScratchFile reference_profile;
std::vector<int> profile_fds({
GetFd(profile1),
GetFd(profile2)});
int reference_profile_fd = GetFd(reference_profile);
const uint16_t kNumberOfMethodsToEnableCompilation = 100;
ProfileCompilationInfo info1;
SetupProfile("p1", 1, kNumberOfMethodsToEnableCompilation, 0, profile1, &info1);
ProfileCompilationInfo info2;
SetupProfile("p2", 2, kNumberOfMethodsToEnableCompilation, 0, profile2, &info2);
// We should advise compilation.
ASSERT_EQ(ProfileAssistant::kCompile,
ProcessProfiles(profile_fds, reference_profile_fd));
// The resulting compilation info must be equal to the merge of the inputs.
ProfileCompilationInfo result;
ASSERT_TRUE(reference_profile.GetFile()->ResetOffset());
ASSERT_TRUE(result.Load(reference_profile_fd));
ProfileCompilationInfo expected;
ASSERT_TRUE(expected.MergeWith(info1));
ASSERT_TRUE(expected.MergeWith(info2));
ASSERT_TRUE(expected.Equals(result));
// The information from profiles must remain the same.
CheckProfileInfo(profile1, info1);
CheckProfileInfo(profile2, info2);
}
// TODO(calin): Add more tests for classes.
TEST_F(ProfileAssistantTest, AdviseCompilationEmptyReferencesBecauseOfClasses) {
ScratchFile profile1;
ScratchFile reference_profile;
std::vector<int> profile_fds({
GetFd(profile1)});
int reference_profile_fd = GetFd(reference_profile);
const uint16_t kNumberOfClassesToEnableCompilation = 100;
ProfileCompilationInfo info1;
SetupProfile("p1", 1, 0, kNumberOfClassesToEnableCompilation, profile1, &info1);
// We should advise compilation.
ASSERT_EQ(ProfileAssistant::kCompile,
ProcessProfiles(profile_fds, reference_profile_fd));
// The resulting compilation info must be equal to the merge of the inputs.
ProfileCompilationInfo result;
ASSERT_TRUE(reference_profile.GetFile()->ResetOffset());
ASSERT_TRUE(result.Load(reference_profile_fd));
ProfileCompilationInfo expected;
ASSERT_TRUE(expected.MergeWith(info1));
ASSERT_TRUE(expected.Equals(result));
// The information from profiles must remain the same.
CheckProfileInfo(profile1, info1);
}
TEST_F(ProfileAssistantTest, AdviseCompilationNonEmptyReferences) {
ScratchFile profile1;
ScratchFile profile2;
ScratchFile reference_profile;
std::vector<int> profile_fds({
GetFd(profile1),
GetFd(profile2)});
int reference_profile_fd = GetFd(reference_profile);
// The new profile info will contain the methods with indices 0-100.
const uint16_t kNumberOfMethodsToEnableCompilation = 100;
ProfileCompilationInfo info1;
SetupProfile("p1", 1, kNumberOfMethodsToEnableCompilation, 0, profile1, &info1);
ProfileCompilationInfo info2;
SetupProfile("p2", 2, kNumberOfMethodsToEnableCompilation, 0, profile2, &info2);
// The reference profile info will contain the methods with indices 50-150.
const uint16_t kNumberOfMethodsAlreadyCompiled = 100;
ProfileCompilationInfo reference_info;
SetupProfile("p1", 1, kNumberOfMethodsAlreadyCompiled, 0, reference_profile,
&reference_info, kNumberOfMethodsToEnableCompilation / 2);
// We should advise compilation.
ASSERT_EQ(ProfileAssistant::kCompile,
ProcessProfiles(profile_fds, reference_profile_fd));
// The resulting compilation info must be equal to the merge of the inputs
ProfileCompilationInfo result;
ASSERT_TRUE(reference_profile.GetFile()->ResetOffset());
ASSERT_TRUE(result.Load(reference_profile_fd));
ProfileCompilationInfo expected;
ASSERT_TRUE(expected.MergeWith(info1));
ASSERT_TRUE(expected.MergeWith(info2));
ASSERT_TRUE(expected.MergeWith(reference_info));
ASSERT_TRUE(expected.Equals(result));
// The information from profiles must remain the same.
CheckProfileInfo(profile1, info1);
CheckProfileInfo(profile2, info2);
}
TEST_F(ProfileAssistantTest, DoNotAdviseCompilation) {
ScratchFile profile1;
ScratchFile profile2;
ScratchFile reference_profile;
std::vector<int> profile_fds({
GetFd(profile1),
GetFd(profile2)});
int reference_profile_fd = GetFd(reference_profile);
const uint16_t kNumberOfMethodsToSkipCompilation = 1;
ProfileCompilationInfo info1;
SetupProfile("p1", 1, kNumberOfMethodsToSkipCompilation, 0, profile1, &info1);
ProfileCompilationInfo info2;
SetupProfile("p2", 2, kNumberOfMethodsToSkipCompilation, 0, profile2, &info2);
// We should not advise compilation.
ASSERT_EQ(ProfileAssistant::kSkipCompilation,
ProcessProfiles(profile_fds, reference_profile_fd));
// The information from profiles must remain the same.
ProfileCompilationInfo file_info1;
ASSERT_TRUE(profile1.GetFile()->ResetOffset());
ASSERT_TRUE(file_info1.Load(GetFd(profile1)));
ASSERT_TRUE(file_info1.Equals(info1));
ProfileCompilationInfo file_info2;
ASSERT_TRUE(profile2.GetFile()->ResetOffset());
ASSERT_TRUE(file_info2.Load(GetFd(profile2)));
ASSERT_TRUE(file_info2.Equals(info2));
// Reference profile files must remain empty.
ASSERT_EQ(0, reference_profile.GetFile()->GetLength());
// The information from profiles must remain the same.
CheckProfileInfo(profile1, info1);
CheckProfileInfo(profile2, info2);
}
TEST_F(ProfileAssistantTest, FailProcessingBecauseOfProfiles) {
ScratchFile profile1;
ScratchFile profile2;
ScratchFile reference_profile;
std::vector<int> profile_fds({
GetFd(profile1),
GetFd(profile2)});
int reference_profile_fd = GetFd(reference_profile);
const uint16_t kNumberOfMethodsToEnableCompilation = 100;
// Assign different hashes for the same dex file. This will make merging of information to fail.
ProfileCompilationInfo info1;
SetupProfile("p1", 1, kNumberOfMethodsToEnableCompilation, 0, profile1, &info1);
ProfileCompilationInfo info2;
SetupProfile("p1", 2, kNumberOfMethodsToEnableCompilation, 0, profile2, &info2);
// We should fail processing.
ASSERT_EQ(ProfileAssistant::kErrorBadProfiles,
ProcessProfiles(profile_fds, reference_profile_fd));
// The information from profiles must remain the same.
CheckProfileInfo(profile1, info1);
CheckProfileInfo(profile2, info2);
// Reference profile files must still remain empty.
ASSERT_EQ(0, reference_profile.GetFile()->GetLength());
}
TEST_F(ProfileAssistantTest, FailProcessingBecauseOfReferenceProfiles) {
ScratchFile profile1;
ScratchFile reference_profile;
std::vector<int> profile_fds({
GetFd(profile1)});
int reference_profile_fd = GetFd(reference_profile);
const uint16_t kNumberOfMethodsToEnableCompilation = 100;
// Assign different hashes for the same dex file. This will make merging of information to fail.
ProfileCompilationInfo info1;
SetupProfile("p1", 1, kNumberOfMethodsToEnableCompilation, 0, profile1, &info1);
ProfileCompilationInfo reference_info;
SetupProfile("p1", 2, kNumberOfMethodsToEnableCompilation, 0, reference_profile, &reference_info);
// We should not advise compilation.
ASSERT_TRUE(profile1.GetFile()->ResetOffset());
ASSERT_TRUE(reference_profile.GetFile()->ResetOffset());
ASSERT_EQ(ProfileAssistant::kErrorBadProfiles,
ProcessProfiles(profile_fds, reference_profile_fd));
// The information from profiles must remain the same.
CheckProfileInfo(profile1, info1);
}
} // namespace art