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/*
* 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.
*/
#define LOG_TAG "libhwbinder_benchmark"
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <iostream>
#include <log/log.h>
#include <utils/StrongPointer.h>
#include <benchmark/benchmark.h>
#include <hidl/Status.h>
#include <hidl/ServiceManagement.h>
#include <android/hardware/tests/libhwbinder/1.0/IBenchmark.h>
// libutils:
using android::OK;
using android::sp;
using android::status_t;
// libhidl:
using android::hardware::defaultServiceManager;
using android::hardware::Return;
using android::hardware::Void;
using android::hardware::hidl_vec;
// Standard library
using std::cerr;
using std::cout;
using std::endl;
using std::string;
using std::unique_ptr;
using std::vector;
// Generated HIDL files
using android::hardware::tests::libhwbinder::V1_0::IBenchmark;
const char gServiceName[] = "android.hardware.tests.libhwbinder.IBenchmark";
static bool startServer() {
sp<IBenchmark> service = IBenchmark::getService(gServiceName, true);
status_t status = service->registerAsService(gServiceName);
if (status != ::android::OK) {
ALOGE("Failed to register service %s.", gServiceName);
exit(EXIT_FAILURE);
}
return 0;
}
static void BM_sendVec(benchmark::State& state, sp<IBenchmark> service) {
// Prepare data to IPC
hidl_vec<uint8_t> data_vec;
data_vec.resize(state.range(0));
for (int i = 0; i < state.range(0); i++) {
data_vec[i] = i % 256;
}
// Start running
while (state.KeepRunning()) {
service->sendVec(data_vec, [&] (const auto &/*res*/) {
});
}
}
static void BM_sendVec_passthrough(benchmark::State& state) {
// getService automatically retries
sp<IBenchmark> service = IBenchmark::getService(gServiceName, true /* getStub */);
if (service == nullptr) {
state.SkipWithError("Failed to retrieve benchmark service.");
}
if (service->isRemote()) {
state.SkipWithError("Benchmark service is remote.");
}
BM_sendVec(state, service);
}
static void BM_sendVec_binderize(benchmark::State& state) {
// getService automatically retries
sp<IBenchmark> service = IBenchmark::getService(gServiceName);
if (service == nullptr) {
state.SkipWithError("Failed to retrieve benchmark service.");
}
if (!service->isRemote()) {
state.SkipWithError("Unable to fetch remote benchmark service.");
}
BM_sendVec(state, service);
}
int main(int argc, char* argv []) {
android::hardware::details::setTrebleTestingOverride(true);
enum HwBinderMode {
kBinderize = 0,
kPassthrough = 1,
};
HwBinderMode mode = HwBinderMode::kBinderize;
// Parse arguments.
for (int i = 1; i < argc; i++) {
if (string(argv[i]) == "-m") {
if (!strcmp(argv[i + 1], "PASSTHROUGH")) {
mode = HwBinderMode::kPassthrough;
}
break;
}
}
if (mode == HwBinderMode::kBinderize) {
BENCHMARK(BM_sendVec_binderize)->RangeMultiplier(2)->Range(4, 65536);
} else {
BENCHMARK(BM_sendVec_passthrough)->RangeMultiplier(2)->Range(4, 65536);
}
::benchmark::Initialize(&argc, argv);
pid_t pid = fork();
if (pid == 0) {
// Child, start benchmarks
::benchmark::RunSpecifiedBenchmarks();
} else {
startServer();
while (true) {
int stat, retval;
retval = wait(&stat);
if (retval == -1 && errno == ECHILD) {
break;
}
}
};
}
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