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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 situation.
- vfio-pci : Passing through a complete physical Graphical Processing Unit (GPU) to the guest via the
vfio-pcidriver - vfio-mdev : Sharing a fraction of a compatible physical GPU such as those using single-root input/output virtualization (SR-IOV), via the
vfio-mdevdriver - vfio-gpu : Using some capabilities of the host GPU, via the
vfio-gpudriver, which creates a virtual GPU as is used in Chromium OS and Spectrum OS
| 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 special driver in the guest | No special driver in the guest | Requires a special driver in the guest |
| 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 | Mostly GPU agnostic |