Selfhosted

40256 readers

1132 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.
No spam posting.
Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.
Don't duplicate the full text of your blog or github here. Just post the link for folks to click.
Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).
No trolling.

Resources:

selfh.st Newsletter and index of selfhosted software and apps
awesome-selfhosted software
awesome-sysadmin resources
Self-Hosted Podcast from Jupiter Broadcasting

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 1 year ago

MODERATORS

How feasible would it be to use one computer as a combined server/desktop with virtualization? (lemmy.starless.one)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/selfhosted

26 comments fedilink hide all child comments

I currently have a 24/7 linux old-office-PC-turned-server for self-hosting, and a desktop for mostly programming and playing games (linux as a host + a windows VM with a passed-through GPU). The server's i5-3330 is usually at ~10-15% usage.

Here's the actual idea: what if, instead of having a separate server and desktop, I had one beefy computer that'd run 24/7 acting as a server and just spun up a linux or windows VM when I needed a desktop? GPUs and USB stuff would be passed through, and I could buy a PCIe SATA or NVMe controller I could also passthrough to not have to worry about virtualized disk overhead.

I'm almost certain I could make this work, but I wonder if it's even worth it - would it consume less power? What about damage to the components from staying powered 24/7? It'd certainly be faster accessing a NAS without the whole "Network-Attached" part, and powering on the desktop for remote access could just be a command over SSH instead of some convoluted remote WoL that I haven't bothered setting up yet.

I'd love to hear your thoughts on this.

Edit 2 months later: Just bought a 7950X3D and use the 3D V-cache half of it as a virtualized desktop with the other cores used for running the host and other VMs. Works perfectly when passing through a dedicated GPU, but iGPU passthrough is very difficult if not impossible since I couldn't manage it.

Edit even later-er: iGPU passthrough is possible on ryzen 7000 after all, everything works great now.

you are viewing a single comment's thread
view the rest of the comments

[–] BombOmOm 3 points 1 year ago* (last edited 1 year ago) (1 children)

I personally do something similar and have several VMs on my main computer that perform various functions. As they are not particularly resource intensive, I have never had an issue with it. I also went the lazier route and run games directly on the hypervisor, not in a VM.

For you, GPU passthrough is the main hurdle. It is surmountable, but it isn’t as simple as other parts of VM setups. If you can get that part working well, everything else should fall into place.

Also, for the sake of your own sanity, do not try to ‘share’ the GPU between the hypervisor and a VM. Use the onboard GPU for the hypervisor (or a baby add-in GPU if you don’t have onboard).

[–] [email protected] 3 points 1 year ago

I've already got GPU passthrough working on my current desktop, so I feel like it should be fine, hopefully. I'm also planning to have the host completely headless and basically act as if it was a full-on dedicated server, potentially passing an iGPU to a linux VM and the dGPU to windows at once. Thanks for the help though!