[Discuss] Virt-Manager

[markw at mohawksoft.com]

I use KVM all the time and manage it with virt-manager.

(1) Make sure that network and disk use VirtIO para-virtual driver, do not
emulate physical devices.

(2) Don't use qcow2, its really slow. Pre-allocate your boot drive:

touch myboot.raw
truncate -s SIZE myboot.raw

The above will let you define a large thin-provisioned disk.

If you have LVM or ZFS you can create a logical volume or zvol, but I
think the thin provisioned "sparse" file may be faster because of the
double caching.

> On 10/18/21 9:20 PM, Edward wrote:
>> I missed a setting, found it afterwards, it defaults to Virtual Network
>> (NAT) and the box to start it automatically was initially not checked.
>>
>> It's working now.
>>
>
> And it (take your pick):
>
>   * is slow as molasses
>   * runs at a snail's pace
>
>
> Not even worth using. Gnome Boxes on Fedora 33 ran far better and faster
> than Virt Manager does on Debian.
>
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