Re: [Xen-users] XEN and vcpus

[Luis Roberto Romano <luisromano@xxxxxxxxx>]

Thanks Thomas.

2011/7/18 Thomas Pöhler <tp@xxxxxxxxxxxxxxxxxxxxxxx>

Hi Luis,

 

the vcpus are not dedicated. You can oversubscribe cpus. As you said the hypervisor will take care of it.

Neverthless this will have minimal performance influence as it generates more interrupts, which on the opposite could be worth it, if some of your vms do more CPU operations than the others.

 

Regards

Thomas

 

Von: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] Im Auftrag von Luis Roberto Romano
Gesendet: Montag, 18. Juli 2011 13:26
An: xen-users@xxxxxxxxxxxxxxxxxxx
Betreff: [Xen-users] XEN and vcpus

 

HI.
Got a question.

When I assign a number of vcpus to a DomU, Are they dedicated to that VM? For example: If I have 16 vcpus available and 8 DomUs, should I assign 2 vcpus for each one? or could I assign more vcpus (i.e. 6) and the hypervisor takes care of it?

Thanks

--
----------------------------------------------------------
Luis R. Romano
Estudiante de Ingeniería en Computación.
FCEFyN - UNC.

Twitter: @luirro777
Facebook: facebook.com/luirro
Blog: www.luisrobertoromano.com.ar

Linkedin: http://ar.linkedin.com/pub/romano-luis/9/265/848

 

 

-- 
----------------------------------------------------------
Luis R. Romano
Estudiante de Ingeniería en Computación.
FCEFyN - UNC.

Twitter: @luirro777
Facebook: facebook.com/luirro
Blog: www.luisrobertoromano.com.ar

Linkedin: http://ar.linkedin.com/pub/romano-luis/9/265/848

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