[pve-devel] Optimizing CPU flags

[Stefan Priebe]

Am 11.02.2015 um 16:59 schrieb Dietmar Maurer:
>
>
>> On February 11, 2015 at 1:54 PM Stefan Priebe - Profihost AG
>> <s.priebe at profihost.ag> wrote:
>>>
>> Sure the optimation option shouldn't be a default as well. But it gives
>> you the possibility to have the maximal performance for your vms.
>> Currently a lot of cpu functions are missing in kvm64 mode.
>
> Yes. But you get the same result if you are able to specify the default cpu
> type.

Sure but you cannot select a cpu type as a global default in a cluster. 
So you have to remember that one each time.

>>>>
>>>> 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.
>>>
>>
>