[mythtv-users] running mythtv-backend in a VM?

[James Abernathy]

On Mon, May 8, 2023 at 5:17 PM Gary Buhrmaster <gary.buhrmaster at gmail.com>
wrote:

> On Mon, May 8, 2023 at 6:36 PM James Abernathy <jfabernathy at gmail.com>
> wrote:
>
> > What am I missing?
>
> Nothing, but, as always, your mileage will vary.
>
> Success will depend on your hardware (and
> virtualization solution).  If your hardware is
> sufficiently capable a VM can perform at
> essentially native speed and all devices
> (including usb, disk, network, gpu, and ethernet
> devices) can be used in dedicated "passthrough"
> modes.  In the cases of advanced network
> and gpu devices with sr-iov support, one can
> even share those devices with other VM's
> and the host itself at near native capabilities.
> For many resources that do not have high
> performance or low latency requirements the
> thin virtualization layers can work well.
>

In my test case my host was on Linux Mint 21.1 and I'm running KVM/qemu
which has very little overhead.  Other than creating a Network bridge on my
Host I didn't do anything unusual for the VM.  I did use the virtiofs to
share a host directory for mythtv recording.  I can not tell if there are
any problems with such a small 2 tuner backend.  But it's a good thing to
know that this is very doable.  The next time I have a complicated Distro
installed, I'll try this again, but I don't expect any different issues
since all the distros run KVM/qemu.

Thanks to all for the advice.

Jim A
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