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| title | description | published | date | tags | editor | dateCreated |
|---|---|---|---|---|---|---|
| Move pixels around | true | 2021-11-13T17:52:22.554Z | markdown | 2021-11-13T17:52:22.554Z |
Graphic cards
Phyllome leverages 3D acceleration within guest operating systems extensively, in three different modes depending on the context.
- vfio-pci : Passing through a physical Graphical Processing Unit (GPU) to the guest via the
vfio-pcidriver - vfio-mdev : Create multiple vGPUs that can then be passed through to multiple guests. It does require a compatible GPU
- virtio-gpu : Expose capabilities of the host GPU to the guest via the
virtio-gpudriver. Compatible with most GPUs but not many guests
| Description | vfio-pci | vfio-mdev | vfio-gpu |
|---|---|---|---|
| Performance | Near-native performance and full features set | Near-native performance and full features set | Degraded performance and limited features set |
| Guests support | UNIX and non-UNIX guests | UNIX and non-UNIX guests | Works only on selected UNIX guests |
| Driver | No specialized driver in the guest | No specialized driver in the guest | A special driver in the guest is required |
| Number of host GPUs | Two GPUs in most situations | A single GPU | A single GPU |
| GPU support | Mostly GPU agnostic | Recent Intel integrated GPUs and some professional-grade Nvidia GPUs. Some consumer GPUs can be unlocked | Mostly GPU agnostic |