vGPU Performance Advice/Question

virtuallypsycho · ‎01-03-2023

Wanted to reach out to the community regarding their experience with using vGPUs. We are currently running Horizon 8 (latest) and vSphere 7.0.3 (latest patch). We have NVIDIA A16 GPUs, v14.3 package, running with AMD EPYC 3GHz+ CPUs. Our Win10 virtual desktops (insta clone) are set to the Best Practice document from NVIDIA for the A-16 (4vCPU, Hardware GPU Scheduling enabled & we use 1b (vPC) profiles). What we see is a small input delay when typing into Teams/Outlook. We don't disable "use hardware acceleration" in the Office apps.

So wondering if others see the same thing...and if anyone has some general "tweaks" that they have found to further improve the overall performance when using vGPU? Forgot to mention, also using PCoIP (Zero Clients).

We are testing setting the Global settings like "Low Latency Mode = On or Ultra", setting Power Management (GPU) to Max performance, but wondering if anyone has found any other items to improve overall performance.

For a lot of applications, like Google Earth/Maps, the improvement over just using CPU rendering is very noticeable...

Thank you.

jmacdaddy · ‎01-04-2023

Have you tried turning off Hardware GPU Scheduling on the virtual desktop and trying it? Probably need to manually reboot the virtual desktop after you disable it for it to take affect. I know in prior versions of the Nvidia drivers, that feature was only supported with GPU passthrough, not with vGPU.

If that doesn't fix it, I would try connecting to the virtual desktops from a PC with the Horizon Client for Windows installed. See if the issue persists with PCoIP. If it does, try switching to Blast and see if it still happens. You can toggle on/off the H264, HEVC and Blast Codec options to see if any of them correct the issue.

Let us know what you find.