QEMU Virtual CPU version

[Nux!]

On 19.12.2012 15:54, Daniel P. Berrange wrote:
> On Wed, Dec 19, 2012 at 03:51:52PM +0000, Nux! wrote:
>> On 19.12.2012 15:48, Daniel P. Berrange wrote:
>> >On Wed, Dec 19, 2012 at 03:43:37PM +0000, Nux! wrote:
>> >You really don't want to change the OpenStack config unless
>> >you actually want worse performance for your guests.
>> >
>> >Daniel
>>
>> Oh, thanks Daniel! I thought the performance would be the same, just
>> with a different cpu name.
>
> The CPU name is a shorthand for specifying CPU feature flags, which
> in turns controls what CPU features guests can use. For example,
> if your CPU has support for AES hardware encryption, you want to
> be exposing this to your guests, otherwise they'll fallback to
> slower software AES encryption
>
> Daniel

Indeed.

Thanks for the lesson. ;-)

Lucian

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Nux!
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