void fun_(int b) // void 空类型，也就是不能保持任何的数据
{
printf("b = %d\n",b);
fun_1(); // 在函数内调用其他函数
return; // 这个return仅仅作为函数的结束标志，不会返回任何的数值
}
int main(int argc, char const *argv[])
{
printf("%s: %s@%d: %s\n", PRJ_NAME, __FILE__,__LINE__ , __func__ );
fun_1();
fun_2();
printf("submod 1 = %d, submod 2 = %d\n", SUB_MOD1, SUB_MOD2 );
return 0;
}
void CPUBenchmark::getProcedureOverhead(vector<double> &result){
uint64_t totalTime = 0;
uint64_t start, end;
//0 argument
warmup();
for (int i = 0; i < TIMES; i++) {
start = rdtscStart();
fun_0();
end = rdtscEnd();
totalTime += (end - start);
}
result[0] = (double)totalTime / (double)TIMES;
//1 argument
warmup();
totalTime = 0;
for (int i = 0; i < TIMES; i++) {
start = rdtscStart();
fun_1(1);
end = rdtscEnd();
totalTime += (end - start);
}
result[1] = (double)totalTime / (double)TIMES;
//2 argument
warmup();
totalTime = 0;
for (int i = 0; i < TIMES; i++) {
start = rdtscStart();
fun_2(1, 2);
end = rdtscEnd();
totalTime += (end - start);
}
result[2] = (double)totalTime / (double)TIMES;
//3 argument
warmup();
totalTime = 0;
for (int i = 0; i < TIMES; i++) {
start = rdtscStart();
fun_3(1, 2, 3);
end = rdtscEnd();
totalTime += (end - start);
}
result[3] = (double)totalTime / (double)TIMES;
//4 argument
warmup();
totalTime = 0;
for (int i = 0; i < TIMES; i++) {
start = rdtscStart();
fun_4(1, 2, 3, 4);
end = rdtscEnd();
totalTime += (end - start);
}
result[4] = (double)totalTime / (double)TIMES;
//5 argument
warmup();
totalTime = 0;
for (int i = 0; i < TIMES; i++) {
start = rdtscStart();
fun_5(1, 2, 3, 4, 5);
end = rdtscEnd();
totalTime += (end - start);
}
result[5] = (double)totalTime / (double)TIMES;
//6 argument
warmup();
totalTime = 0;
for (int i = 0; i < TIMES; i++) {
start = rdtscStart();
fun_6(1, 2, 3, 4, 5, 6);
end = rdtscEnd();
totalTime += (end - start);
}
result[6] = (double)totalTime / (double)TIMES;
//7 argument
warmup();
totalTime = 0;
for (int i = 0; i < TIMES; i++) {
start = rdtscStart();
fun_7(1, 2, 3, 4, 5, 6, 7);
end = rdtscEnd();
totalTime += (end - start);
}
result[7] = (double)totalTime / (double)TIMES;
}