Was wondering why my GPU usage was always as low as 5-10 % - and found a setting:
System > Display > Graphics settings - and switched the toggle for "Hardware accelerated GPU scheduling" to On.
After a reboot now my 4060 Ti 16 GB GPU easily runs above 80% and often 100% for a long time.
This works with Vegas, Topaz video AI, Stable Diffusion etc..
Probably many of you already knew this already - I did not - but it is really great to see that everything is running so much faster now.
When you turn on GPU scheduling you'll see almost all your GPU activity in the 3d engine box, but with GPU scheduling off processing will appear in different engines. In the case of Vegas processing appears in CUDA and 3D, but by default you'll never see the CUDA use making you believe Vegas is using your GPU less.
What you forgot to tell us, did you see a performance increase/decrease or about the same?
In Resolve and also Stability DIffusion it's generally recommend you turn it off, with Resolve performance with heavy GPU FX and Vram use dropping by 20% with GPU scheduling on. I have heard it said performance with GPU scheduling on is best with lower powered CPU's and maybe lower powered GPU's. With a Ryzen 7950(16core) cpu and RTX 4090 performance would only be worse, or so I hear.
Try a benchmark like the ones in my signature and see if there is a measurable performance difference.
@RogerS There actually is a difference which was a surprise for me. Using the Vegas Benchmark project I get these times for 4K encode to NVENC (voukoder) GPU scheduling OFF
50.67
51.66
50.54
GPU Scheduling ON
46S
45.47
45.15
When reading about this, and the advantage being higher to lower spec CPU's then it may make sense why we see the performance increase with Vegas, it doesn't take great advantage of high core CPU's except for CPU rendering, and also CPU AI, so effectively it may not matter if you have a 16core CPU, you still see the benefits.
I'd be interested to see if Intel 13000 series and AMD 7000 CPU owners see the same performance increase. It's not the encoding speed I"M interested in, but hope it's increasing the performance of the actual render engine and so timeline playback performance.
Playing back the Vegas Benchmark project it still seems pretty similar.
I see that hardware scheduling is now enabled for my Win 11 desktop, so the updated benchmark results I did for VP 21 reflect that. No real difference over what I had for 20 without it enabled.