gsoc gist

bench.c

struct BenchWrapper
{
    size_t nb_fct_call;
    size_t iter_per_fct;
    // Define function arguments here
    int (*func)(const OVSEI *sei, OVFrame **frame);
};

void bench_decorator(struct BenchWrapper bw, char* name, const OVSEI *sei, OVFrame **frame)
{
    volatile int dummy;
    double total_avg_time = 0;
    
    for (size_t i = 0; i < bw.nb_fct_call; ++i)
    {
        double avg_time = 0;

        for (size_t j = 0; j < bw.iter_per_fct; ++j)
        {
            double t1 = clock();
            volatile const int r = bw.func(sei, frame);
            double t2 = clock();

            dummy = r;
            double dt = (t2 - t1) * 1000 / CLOCKS_PER_SEC; // millisecond

            avg_time += dt;
        }

        avg_time /= (double)bw.iter_per_fct;
        total_avg_time += avg_time;
    }

    total_avg_time /= (double)bw.nb_fct_call;
    printf("%-20s: %f ms (average time / %lu calls of %lu iteration each)]\n",
        name,
        total_avg_time,
        bw.nb_fct_call,
        bw.iter_per_fct);
}