Created by: gangliao

For PaddlePaddle, we use REGISTER_TIMER_INFO to set a timer for performance tuning.

For instance, the timer in BilinearInterpLayer.cpp to statistics:

  {
    REGISTER_TIMER_INFO("FwBilinearInterpTimer", getName().c_str());
    outV->bilinearForward(*inV, inImgH_, inImgW_, outImgH_, outImgW_,
      numChannels_);
  }

But, there exist some state of the art profilers to tune performance more intuitively. for instance, nvvp[performance analysis GUI] and nvprof [command line tools].

I will add a doc section about how to use profiler on PaddlePaddle for our teams and developers before Milestone 0.8.2.