Merge "compare android::Vector and std::vector" am: fd4fecc1 am: 9fdb2e10

    ],

    shared_libs: ["libutils_test_singleton1"],

}

cc_benchmark {

    name: "libutils_benchmark",

    srcs: ["Vector_benchmark.cpp"],

    shared_libs: ["libutils"],

}

/*

 * Copyright (C) 2019 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 <benchmark/benchmark.h>

#include <utils/Vector.h>

#include <vector>

void BM_fill_android_vector(benchmark::State& state) {

    android::Vector<char> v;

    while (state.KeepRunning()) {

        v.push('A');

    }

}

BENCHMARK(BM_fill_android_vector);

void BM_fill_std_vector(benchmark::State& state) {

    std::vector<char> v;

    while (state.KeepRunning()) {

        v.push_back('A');

    }

}

BENCHMARK(BM_fill_std_vector);

void BM_prepend_android_vector(benchmark::State& state) {

    android::Vector<char> v;

    while (state.KeepRunning()) {

        v.insertAt('A', 0);

    }

}

BENCHMARK(BM_prepend_android_vector);

void BM_prepend_std_vector(benchmark::State& state) {

    std::vector<char> v;

    while (state.KeepRunning()) {

        v.insert(v.begin(), 'A');

    }

}

BENCHMARK(BM_prepend_std_vector);

BENCHMARK_MAIN();