nyaaaaaaaa.c

/*
 * PAPI wrappers
 */
#define NUM_EVENTS 5
int papi_events[]  {PAPI_TOT_CYC, PAPI_TOT_INS, PAPI_L1_DCM, PAPI_L2_DCM, PAPI_L2_DCA};
long long int papi_counters[NUM_EVENTS];

void
start_papi_counter()
{
  const int status = PAPI_start_counters(papi_events, NUM_EVENTS);
  if (status != PAPI_OK)
  {
    fprintf(stderr, "Cannot start PAPI Counters (%d, %s)\n", status, PAPI_strerror(status));
    exit(EXIT_FAILURE);
  }
}

void
stop_papi_counter()
{
  PAPI_stop_counters(papi_counters, NUM_EVENTS);
  for (int i = 0; i < NUM_EVENTS; i++) {
    char event_name[PAPI_MAX_STR_LEN];
    PAPI_event_code_to_name(papi_events[i], event_name);

    printf("%12s : %llu\n", event_name, papi_counters[i]);
  }
}