Ejemplos de __ppc_get_timebase_freq en C++ (Cpp)

Ejemplo n.º 1

Archivo: test-gettimebasefreq.c Proyecto: gf-chen/glibc

static int
do_test (void)
{
  uint64_t t1, t2, f, diff;

  t1 = __ppc_get_timebase ();
  printf ("t1 = %"PRIu64"\n", t1);

  f = __ppc_get_timebase_freq ();
  printf ("Time Base frequency = %"PRIu64" Hz\n", f);

  if (f == 0) {
      printf ("Fail: The time base frequency can't be zero.");
      return 1;
  }

  t2 = __ppc_get_timebase ();
  printf ("t2 = %"PRIu64"\n", t2);

  if (t2 > t1) {
    diff = t2 - t1;
  } else {
    diff = (MAX_TB - t2) + t1;
  }

  printf ("Elapsed time  = %1.2f usecs\n", (double) diff * 1000000 / f );

  return 0;
}

Ejemplo n.º 2

double ucs_arch_get_clocks_per_sec()
{
#if HAVE_DECL___PPC_GET_TIMEBASE_FREQ
    return __ppc_get_timebase_freq();
#else
    return ucs_get_cpuinfo_clock_freq("timebase");
#endif
}