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I am trying to hunt down a possible memory leak in my Sharpdx / DirectX application.
I am getting the following information from process explorer which I do not know how to interpret.
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In the GPU column, the value at the top is the overall GPU utilization across all GPUs, the same as the one displayed in the performance tab. The GPU usage % for an application or process shows what % of the busiest engine is being utilized.
Either right-click the taskbar and choose Task Manager or hit the Windows key and type: task manager and hit Enter. Open the Processes tab, and to add the GPU column, right-click one of the column headers and choose the “GPU” option — you can also add “GPU Engine” if you want.
That said, if your total GPU usage is 0%, it might be because your display is running on the CPU. We recommend enabling Hardware-accelerated GPU Scheduling to fix this issue. It allocates some high-priority tasks to the GPU to reduce CPU load. Your graphics card and driver must support this process.
A Memory Leak happens when the resources did not return to the system of the app you were using. The usage of your memory is increased in the task manager and the performance of your PC is decreased.
Dedicated GPU memory is basically the VRAM on-board the GPU
System GPU memory is memory that the graphics card driver is using the GART (Graphics Address Remapping Table) to store resources in system memory... AGP and PCI Express both provide regions of memory set aside for this purpose (sometimes referred to as aperture segments).
Committed GPU memory refers to the amount of memory mapped into a display device's address space by the display driver, it is a difficult concept to explain but this number typically does not represent anything worthwhile to anyone but driver developers.
I suggest you look into the following documentation on MSDN as well as this overview of GPU address space segementation, while they are somewhat technical they give a general overview of what is going on.
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