ok. Thank you very much for the explanations. On Fri, Jun 2, 2023 at 3:15 PM Michael Stone <mst...@debian.org> wrote:
> On Fri, Jun 02, 2023 at 03:01:04PM +0200, Mario Marietto wrote: > >Using qemu is out of discussion,because it is very slow. But as I > said,bhyve > >works better than qemu alone. > > kvm literally uses qemu as its user space, so it's very much not out of > the discussion. If you can't use the kvm kernel extensions for > virtualization, then running under qemu gets you the same userspace > experience with a performance penalty. bhyve has its own requirements > for what cpu extensions must be present, and AFAIK can't fall back to a > non-accelerated mode if they are not, regardless of performance. > Sometimes you might want VMs to run, even more slowly, than to not run > at all. > > I get that there's some machine that you have that can't run kvm. I have > no idea why without access to the machine. But that's not a general > problem, that's a problem with some specific piece of hardware. It's not > like kvm has exotic requirements--I'm running on some hardware that's > more than a decade old. > -- Mario.
