KVM Smokes VirtualBox On Initial AMD EPYC Linux Tests

[jacob]

The Apple fanboys, who swear by VirtualBox because that's the best they have, are going to hate this.

[torsionbar28]

and 3d? works in Kvm windows guests?

Nope, KVM does not support 3D acceleration of guests. However VirtualBox does not support the fine grained CPU topology configuration that KVM does.

When you compare the feature sets of the two products, you'll see that VirtualBox and KVM are not really competitors. VirtualBox is more of a desktop hypervisor like VMware Workstation, where KVM is more of a server hypervisor like ESXi or Proxmox.

I actively use both, in these exact scenarios. VirtualBox on my Fedora workstation to do workstation stuff. And KVM on my CentOS server to host server VM's.

[AndyChow]

Nope, VMWare is alive and kicking because of their enterprise services

Well, yeah. When your wondering why everything is so slow, they'll send you a dozen experts for $250-375/hour, and after several months, it will kind of work.

[AndyChow]

and 3d? works in Kvm windows guests?

If your hardware supports it, absolutely! Assign your cpu's gpu to your hypervisor, and passthrough your graphic card to your windows guest, and then you get bare-metal gpu performance on your KVM guest. Which is great, since your discrete GPU probably doesn't work that well with linux.

If your cpu doesn't have a gpu, you can still do it with a little elbow grease. You configure the passthrough through your ethernet, then launch your guest. And then you can get back to your hypervisor from the guest with SSH or something.

And if your cpu does have a gpu, you can run it in one screen, run your bare-metal gpu on your windows guest, and your linux hypervisor on another screen, then host synergy from your windows instance (to minimize mouse latency). Then, you can run both at the same time, and have full video-game performance on your windows screen. Great for wasting time while you're compiling something.