4 ms·

Thanks, I see (I think). So some use cases would be for gaming (where you really need dedicated graphics performance), and also for MacOS as a guest OS (as oth

Thanks, I see (I think). So some use cases would be for gaming (where you really need dedicated graphics performance), and also for MacOS as a guest OS (as otherwise the user interface is really slow)?

_joel 5y ago
Passing through for GPU releated ML tasks or perhaps HW accelerated encoding. I've also used PCI passthrough with Blackmagic SDI capture cards so that a given VM could access the device and the SDI input feed.
zrail 5y ago
This is also useful if you want to pass dedicated network interfaces through to specific guests. For example, I am planning to run a router on top of proxmox and pass through several dedicated NICs specifically for routing purposes.
djrogers 5y ago
> for MacOS as a guest OS (as otherwise the user interface is really slow) Is this something specific to proxmox or non-mac hosted virtualization? I ask because I regularly run MacOS without GPU passthrough without any UI slowdowns at all. In fact, at one point I ran macOS in a VM as the primary UI on my MacBook for several years..
- monkey_monkey 5y ago
  I tried running MacOS as a guest OS using VMWare Fusion a while back (2 or 3 years), and my recollection is that all the UI stuff (drag/drop, transitions, etc) were super slow. This was on a late 2013 though, so the experience may be very different now, in fact now that I've replaced it with a 2020 iMac, I'll give it another go and see.
- m463 5y ago
  I have a main mac desktop, and "uploaded" my macbook into proxmox near the start of the pandemic. I just use mac to mac screen sharing to get to it and it works wonderfully. If you don't know, screen sharing is done very well - it does very intelligent things, such as drag and drop files from desktop to desktop or rich-text copy/paste between systems. It will also pass keys correctly, so command-q will quit a remote app instead of quitting the screen sharing app itself. same with alt-tab. I used to use screen sharing with the macbook itself, but it kept going to sleep with the lid closed at inopportune times even with caffeinate, so I just cut to the chase. I also was able to migrate the macos vm when I upgraded my proxmox machine hardware. "vzdump <vmid>", copy the dumpfile, "qmrestore <dumpfile> <vmid>", voila

_joel 5y ago

Passing through for GPU releated ML tasks or perhaps HW accelerated encoding. I've also used PCI passthrough with Blackmagic SDI capture cards so that a given VM could access the device and the SDI input feed.

zrail 5y ago

This is also useful if you want to pass dedicated network interfaces through to specific guests. For example, I am planning to run a router on top of proxmox and pass through several dedicated NICs specifically for routing purposes.

djrogers 5y ago

> for MacOS as a guest OS (as otherwise the user interface is really slow) Is this something specific to proxmox or non-mac hosted virtualization? I ask because I regularly run MacOS without GPU passthrough without any UI slowdowns at all. In fact, at one point I ran macOS in a VM as the primary UI on my MacBook for several years..

monkey_monkey 5y ago
I tried running MacOS as a guest OS using VMWare Fusion a while back (2 or 3 years), and my recollection is that all the UI stuff (drag/drop, transitions, etc) were super slow. This was on a late 2013 though, so the experience may be very different now, in fact now that I've replaced it with a 2020 iMac, I'll give it another go and see.
m463 5y ago
I have a main mac desktop, and "uploaded" my macbook into proxmox near the start of the pandemic. I just use mac to mac screen sharing to get to it and it works wonderfully. If you don't know, screen sharing is done very well - it does very intelligent things, such as drag and drop files from desktop to desktop or rich-text copy/paste between systems. It will also pass keys correctly, so command-q will quit a remote app instead of quitting the screen sharing app itself. same with alt-tab. I used to use screen sharing with the macbook itself, but it kept going to sleep with the lid closed at inopportune times even with caffeinate, so I just cut to the chase. I also was able to migrate the macos vm when I upgraded my proxmox machine hardware. "vzdump <vmid>", copy the dumpfile, "qmrestore <dumpfile> <vmid>", voila