On 4/9/19 1:41 PM, Tom Horsley wrote:
On Tue, 9 Apr 2019 13:20:05 -0700
Samuel Sieb wrote:
what specifically is the
slowdown?
From my highly non-scientific and inexact testing, the
virtual disks have better I/O performance in virtualbox
and in vmware. Since qemu has 47 gazillion different
format virtual disks, I have no idea which one is the
best performance (raw, qcow2, something else?)
That should only matter if you're doing something disk intensive. I
used Windows 7 in a VM a while back and didn't have any issues with it.
I wasn't doing anything that required a lot of performance though.
Also, there is no 3D graphics support in the video
driver (though I see a mysterious checkbox in the
latest virt-manager that says something about 3D and
has a warning triangle next to it). So if the windows
program you are running is willing to fall back to
pure software 3D, the performance will be dreadful
(though windows programs I've tried have simply refused
to run without hardware 3D).
I think the only 3D support is if the guest is Linux with the 3D virtio
driver.
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