C++ (Cpp) DIFFU Examples

Example #1

File: perf.c Project: arnonhongklay/watchman

bool w_perf_finish(w_perf_t *perf) {
  gettimeofday(&perf->time_end, NULL);
  w_timeval_sub(perf->time_end, perf->time_begin, &perf->duration);
#ifdef HAVE_SYS_RESOURCE_H
  getrusage(RUSAGE_SELF, &perf->usage_end);

  // Compute the delta for the usage
  w_timeval_sub(perf->usage_end.ru_utime, perf->usage_begin.ru_utime,
                &perf->usage.ru_utime);
  w_timeval_sub(perf->usage_end.ru_stime, perf->usage_begin.ru_stime,
                &perf->usage.ru_stime);

#define DIFFU(n) perf->usage.n = perf->usage_end.n - perf->usage_begin.n
  DIFFU(ru_maxrss);
  DIFFU(ru_ixrss);
  DIFFU(ru_idrss);
  DIFFU(ru_minflt);
  DIFFU(ru_majflt);
  DIFFU(ru_nswap);
  DIFFU(ru_inblock);
  DIFFU(ru_oublock);
  DIFFU(ru_msgsnd);
  DIFFU(ru_msgrcv);
  DIFFU(ru_nsignals);
  DIFFU(ru_nvcsw);
  DIFFU(ru_nivcsw);
#undef DIFFU
#endif

  if (!perf->will_log) {
    if (perf->wall_time_elapsed_thresh == 0) {
      json_t *thresh = cfg_get_json(NULL, "perf_sampling_thresh");
      if (thresh) {
        if (json_is_number(thresh)) {
          perf->wall_time_elapsed_thresh = json_number_value(thresh);
        } else {
          json_unpack(thresh, "{s:f}", perf->description,
                    &perf->wall_time_elapsed_thresh);
        }
      }
    }

    if (perf->wall_time_elapsed_thresh > 0 &&
        w_timeval_diff(perf->time_begin, perf->time_end) >
            perf->wall_time_elapsed_thresh) {
      perf->will_log = true;
    }
  }

  return perf->will_log;
}

Example #2

File: perf.cpp Project: danez/watchman

bool watchman_perf_sample::finish() {
  gettimeofday(&time_end, nullptr);
  w_timeval_sub(time_end, time_begin, &duration);
#ifdef HAVE_SYS_RESOURCE_H
  getrusage(RUSAGE_SELF, &usage_end);

  // Compute the delta for the usage
  w_timeval_sub(usage_end.ru_utime, usage_begin.ru_utime, &usage.ru_utime);
  w_timeval_sub(usage_end.ru_stime, usage_begin.ru_stime, &usage.ru_stime);

#define DIFFU(n) usage.n = usage_end.n - usage_begin.n
  DIFFU(ru_maxrss);
  DIFFU(ru_ixrss);
  DIFFU(ru_idrss);
  DIFFU(ru_minflt);
  DIFFU(ru_majflt);
  DIFFU(ru_nswap);
  DIFFU(ru_inblock);
  DIFFU(ru_oublock);
  DIFFU(ru_msgsnd);
  DIFFU(ru_msgrcv);
  DIFFU(ru_nsignals);
  DIFFU(ru_nvcsw);
  DIFFU(ru_nivcsw);
#undef DIFFU
#endif

  if (!will_log) {
    if (wall_time_elapsed_thresh == 0) {
      auto thresh = cfg_get_json("perf_sampling_thresh");
      if (thresh) {
        if (json_is_number(thresh)) {
          wall_time_elapsed_thresh = json_number_value(thresh);
        } else {
          json_unpack(thresh, "{s:f}", description, &wall_time_elapsed_thresh);
        }
      }
    }

    if (wall_time_elapsed_thresh > 0 &&
        w_timeval_diff(time_begin, time_end) > wall_time_elapsed_thresh) {
      will_log = true;
    }
  }

  return will_log;
}