To get a clearer picture, we’ll use the set of profiling tools that come with Visual Studio. I did that at a few keypoints and it revealed that a disproportionate amout of time was spent on postprocessing.Īctually a large chunk of CPU was wasted on the Maximum Likelihood Parameter Generation ( Speech parameter generation algorithms for HMM-based speech synthesis) that was done via SPTK. #define DNN_PROFILE_LOG(txt) std::cout << ' ' << txt << std::endl ĭNN_PROFILE_LOG('Time for postprocessing (MLPG + transformation): ' << postprocessingTimer.ElapsedMilliseconds() << 'ms.') #define DNN_PROFILE_TIMER(var) Timer var Std::chrono::steady_clock::now() - begin).count()

Std::chrono::steady_clock::time_point begin īegin = std::chrono::steady_clock::now() SciPy, R, Excel…) on a development machine.Ī straightforward and simple utility is shown here: You can then analyze the timing data with other tools of your choice (e.g. The biggest advantage of this method is that you can easily run your binary on a number of test devices and gather timing data without the need for profiling tools. Measuring via timestampsĪ simple approach is to just get timestamps at different stages in your code and output the deltas. Interestingly, in most cases the DNN wasn’t the actual bottleneck but pre- and postprocessing via 3rd party libraries.īut let’s get started. For running on weak and older devices, I had to take a number of measures to ensure adequate performance.

In this tutorial we use the profiler of the Visual Studio 2015 Community Edition (recommended:īeginners Guide to Performance Profiling).Īt the time of writing I am working on a Deep Learning based synthesizer for VocaliD. Code Clinic 2015: How to Write Code the Compiler Can Actually Optimize.

It does not describe performance optimization in detail.Īs additional reading I recommend Data Oriented Design Resources and especially the talks of Mike Acton, e.g. This brief case report shows an example for performance gains that can be achieved in C and C++ by simple analysis and code restructuring.

Visual studio code c++ profiler