1 /*
2 * Copyright (c) Huawei Technologies Co., Ltd. 2024. All rights reserved.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <iostream>
17 #include <cstdio>
18 #include <ctime>
19 #include <unistd.h>
20
21 #include "ffrt.h"
22
23 #define NSEC_PER_SEC 1000000000L
24 namespace {
25 constexpr int TWO_NUM = 2;
26 constexpr int VALUE_NUM = 100;
27
GetNanos()28 static long GetNanos()
29 {
30 struct timespec ts;
31 clock_gettime(CLOCK_MONOTONIC, &ts);
32 return ts.tv_sec * NSEC_PER_SEC + ts.tv_nsec;
33 }
34 } // namespace
35
main(int argc,char * argv[])36 int main(int argc, char *argv[])
37 {
38 if (argc != TWO_NUM) {
39 return 0;
40 }
41 int i = 0;
42 for (; i < TWO_NUM; i++) {
43 std::cout << "hook" << std::endl;
44 sleep(TWO_NUM);
45 ffrt::submit([i] { std::cout << "num: " << i << std::endl; });
46 }
47 ffrt::wait();
48
49 long startTime = 0;
50 long endTime = 0;
51 long elapsedTime = 0;
52 std::cout << "start" << std::endl;
53 startTime = GetNanos();
54 for (int j = 0; j < std::atoi(argv[1]); ++j) {
55 int x = 1;
56 ffrt::submit([&] { x = VALUE_NUM; }, {}, {&x});
57 }
58 ffrt::wait();
59 endTime = GetNanos();
60 elapsedTime = endTime - startTime;
61 printf("Elapsed time: %ld nanoseconds, mean time: %ld\n", elapsedTime, elapsedTime / std::atoi(argv[1]));
62 return 0;
63 }