Profiling Windows OS GPU memory usage

Profiling OS-level GPU memory usage

OS-level event tracing is able to report:

1. System-wide memory utilization metrics.
2. External fragmentation.

To enable:

1. Install Windows Performance Toolkit (must be checked), a component of the Windows 10 SDK.
2. Open C:\Program Files (x86)\Windows Kits\10\Windows Performance Toolkit\perfcore.ini in notepad.
3. Append perf_dx.dll to perfcore.ini.

Then to record:

1. Open a admin command-prompt by typing "cmd" in Windows Search then clicking "Run As Administrator".
2. Run C:\Program Files (x86)\Windows Kits\10\Windows Performance Toolkit\gpuview\log.cmd to START recording.
3. Run C:\Program Files (x86)\Windows Kits\10\Windows Performance Toolkit\gpuview\log.cmd again to STOP recording.
4. Open Merged.etl in GPUView.exe or Windows Performance Analyzer (WPA.exe) to view.