Suffering with Performance Issue with Xen vCPU pinning and GPU passthrough

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Poor GPU performance in Qube

I’ve created a Windows 10 HVM with my GPU passed through. When playing games that are GPU heavy, I noticed a huge drop off in performance compared to bare metal and KVM passthrough setups I’ve tried previously on this hardware. When benchmarking using userbenchmark.com (not the most reliable, but easy) I see a huge issue. While my CPU has dropped off a reasonable 5-6% in performance, my GPU has experienced a massive drop off. Below I’ve attached a picture of my results: [gpu] I really notic…