[pve-devel] Optimizing CPU flags

[Dietmar Maurer]

On 02/11/2015 08:17 AM, Stefan Priebe - Profihost AG wrote:
>> What exactly is a fixed cluster? The admin can always add an additional
>> node, and it is not possible to
>> know the CPU features of new nodes in advance.
> Sure live migration may fail - but this is also true for using the host
> option.

That is why we do not use that as default.

>
> The optimize option has the advantage that the maximum features will be
> used for new VMs - this might also need the enforce parameter.
>
> Stefan
>
>
>

I guess we should provide a generic way to specify defaults. I started a 
prototype
for that some time ago:

https://git.proxmox.com/?p=qemu-defaults.git;a=summary

But this need more work until it gets useful.