Function init_rdtsc_per_sec

lib/precise_time.c:153–162

static uint64_t rdtsc_per_sec = 0;
static void __attribute__((constructor)) init_rdtsc_per_sec()
{
    uint64_t before, after;

    before = rdtsc();
    usleep(USECS_PER_SEC);
    after = rdtsc();

    rdtsc_per_sec = after - before;
}

double monotonic_seconds()
{