check gpu usage jetson nano

To check GPU usage on Jetson Nano using C++, you can use the NVIDIA Management Library (NVML). Here are the steps to achieve this:

1. Initialize NVML: Use nvmlInit() to initialize NVML and check for any errors.

2. Get Device Handle: Use nvmlDeviceGetHandleByIndex() to get the handle for the GPU device.

3. Get Utilization Information: Use nvmlDeviceGetUtilizationRates() to retrieve the GPU utilization information, including the percentage of time over the past sample period during which one or more kernels was executing on the GPU.

4. Display Utilization Information: Retrieve and display the GPU utilization information such as GPU utilization percentage.

5. Shutdown NVML: Use nvmlShutdown() to shut down NVML when done with the GPU utilization information.

By following these steps, you can successfully check the GPU usage on Jetson Nano using C++.