Method GetElapsedMilliseconds

tensorflow/stream_executor/gpu/gpu_timer.cc:64–72

}

float GpuTimer::GetElapsedMilliseconds() const {
  CHECK(start_event_ != nullptr && stop_event_ != nullptr);
  // TODO(leary) provide a way to query timer resolution?
  // CUDA docs say a resolution of about 0.5us
  float elapsed_milliseconds = NAN;
  (void)GpuDriver::GetEventElapsedTime(
      parent_->gpu_context(), &elapsed_milliseconds, start_event_, stop_event_);
  return elapsed_milliseconds;
}

bool GpuTimer::Start(GpuStream* stream) {
  port::Status status = GpuDriver::RecordEvent(