Re: Making Xen utilize all cores

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Fri, Aug 29, 2014 at 09:02:34AM +0530, Mayuresh wrote:
> This is on NetBSD 6.1 i386 Dom0 and Linux DomU.
> 
> The CPU column shows only 2 CPUs. This is actually a quad core processor.
> 
> # xl vcpu-list
> Failed to read config file: /usr/pkg/etc/xen/xl.conf: No such file or
> directory
> Name                                ID  VCPU   CPU State   Time(s) CPU
> Affinity
> Domain-0                             0     0    0   r--     383.8  any cpu
> Domain-0                             0     1    -   --p       0.0  any cpu
> Domain-0                             0     2    -   --p       0.0  any cpu
> Domain-0                             0     3    -   --p       0.0  any cpu
> domu-linux                           1     0    3   -b-     121.2  any cpu
> 
> Shouldn't Xen be using all CPUs by default? What setting am I missing to
> make Xen do so?

NetBSD/Xen can't use more than one CPU at this time, the backend drivers
are not SMP-safe. A NetBSD domU can use multiple CPUs.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--