example-measure-time.cpp

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

#include "utils/measure-time.h"

int main() {
        {
                measure_time t("nothing");
        }
        {
                int i, j;
                measure_time t("real computation with a loop");
                
                /* Real computation (but don't use -O3 ...) */
                for(i = 0; i <= 10000; i++)
                        for (j = 0; j <= 100000; j++)
                                ;
        }

        {
                measure_time t("no real computation, but sleep(1)");
                sleep(1); /* takes wall-clock time, but not CPU time */
        }
        return 0;
}