bench-plain-cpp.cpp

Go to the documentation of this file.

/********************************************************************
 * Copyright (C) 2012 by Verimag                                    *
 * Initial author: Matthieu Moy                                     *
 * This file must not be distributed outside Verimag                *
 ********************************************************************/

#define N 100

void eat_cpu() {
        int dummy_counter;
        for (int i = 0; i < N; i++) {
                for (int j = 0; j < 42000; j++) {
                        dummy_counter++;
                        __asm("");
                }
        }
}

void eat_cpu2() {
        int dummy_counter;
        for (int i = 0; i < N; i++) {
                for (int j = 0; j < 42000; j++) {
                        dummy_counter++;
                        __asm("");
                }
        }
}

void almost_free() {
}

void eat_cpu_wrapper () {
        eat_cpu();
        eat_cpu2();
        eat_cpu();
        for (int i = 0; i < N; i++)
                almost_free();
}

void eat_cpu_heavy_wrapper () {
        eat_cpu();
        eat_cpu2();
        int dummy_counter;
        for (int i = 0; i < N; i++) {
                for (int j = 0; j < 42000; j++) {
                        dummy_counter++;
                        __asm("");
                }
        }
}

int main() {
        eat_cpu();
        eat_cpu_wrapper();
        eat_cpu_heavy_wrapper();
}