[Bug 196409] kvm_amd nested pagetable gpu passthrough performance oddities

bugzilla-daemon
2017-07-20T18:53:44Z

Michael (michael.osmolski@gmail.com) changed:

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CC| |michael.osmolski@gmail.com

--- Comment #1 from Michael (michael.osmolski@gmail.com) ---
I too have this NPT issue with Ryzen 1800x and KVM latest kernel.
It's incredible that no-one has managed to resolve this yet.
GPU performance is absolutely dire with npt=1 and CPU is so bad with npt=0. So
loss/loss situation.