* Query regarding Xen - Assigning more than 1 VCPUs to Dom0
@ 2012-03-08 13:46 Mohit Dhingra
2012-03-16 15:47 ` Konrad Rzeszutek Wilk
0 siblings, 1 reply; 3+ messages in thread
From: Mohit Dhingra @ 2012-03-08 13:46 UTC (permalink / raw)
To: xen-users, xen-devel
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*Hi Xen-users,*
I have a doubt regarding assigning VCPUs to Dom0 and DomUs, Please give me
some pointers to sort them out.
1. I have assigned one VCPU to Dom0 ( by (dom0-cpus 1) in xend-config.sxp
), it works fine.
cadlab:/srv/cloud/one # xm list
Name ID Mem VCPUs State
Time(s)
Domain-0 0 3964 1 r-----
203993.1
one-5 2 1024 1 -b----
10241.9
one-6 4 1024 1 -b----
3970.8
one-7 1 1024 1 -b----
4052.7
one-8 3 1024 1 --p---
2246.7
cadlab:/srv/cloud/one # xm vcpu-list
Name ID VCPU CPU State Time(s) CPU
Affinity
Domain-0 0 0 6 r-- 203985.6 6
Domain-0 0 1 - --p 1.7 7
Domain-0 0 2 - --p 1.6 any cpu
Domain-0 0 3 - --p 2.3 any cpu
Domain-0 0 4 - --p 1.3 any cpu
Domain-0 0 5 - --p 1.2 any cpu
Domain-0 0 6 - --p 1.5 any cpu
Domain-0 0 7 - --p 1.7 any cpu
one-5 2 0 2 -b- 10241.9 2
one-6 4 0 4 -b- 3970.8 4
one-7 1 0 5 -b- 4052.7 5
one-8 3 0 3 --- 2246.7 3
But when I assign 2 VCPUs to Dom0, it gives me following error: ( by
(dom0-cpus 2) in xend-config.sxp )
cadlab:/srv/cloud/one # xm list
Error: Unable to connect to xend: Connection refused. Is xend running?
I want to pin Dom0 to 2 VCPUs. When I do that by providing (dom0-cpus 0 )
and pinning 2 of the cores to 2 VCPUs ( by xm vcpu-pin), it doesn't seem to
use the other core.
Also, My system is Intel i7 950, which is quad core, but it shows 8 CPUs
probably because of hyperthreading. How should I disable it?
*
----------------------------
Thanks & Regards
Mohit Dhingra
+919611190435*
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_______________________________________________
Xen-users mailing list
Xen-users@lists.xen.org
http://lists.xen.org/xen-users
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Query regarding Xen - Assigning more than 1 VCPUs to Dom0
2012-03-08 13:46 Query regarding Xen - Assigning more than 1 VCPUs to Dom0 Mohit Dhingra
@ 2012-03-16 15:47 ` Konrad Rzeszutek Wilk
2012-03-27 9:12 ` [Xen-devel] " Mohit Dhingra
0 siblings, 1 reply; 3+ messages in thread
From: Konrad Rzeszutek Wilk @ 2012-03-16 15:47 UTC (permalink / raw)
To: Mohit Dhingra; +Cc: xen-devel, xen-users
On Thu, Mar 08, 2012 at 07:16:25PM +0530, Mohit Dhingra wrote:
> *Hi Xen-users,*
>
> I have a doubt regarding assigning VCPUs to Dom0 and DomUs, Please give me
> some pointers to sort them out.
>
> 1. I have assigned one VCPU to Dom0 ( by (dom0-cpus 1) in xend-config.sxp
> ), it works fine.
> cadlab:/srv/cloud/one # xm list
> Name ID Mem VCPUs State
> Time(s)
> Domain-0 0 3964 1 r-----
> 203993.1
> one-5 2 1024 1 -b----
> 10241.9
> one-6 4 1024 1 -b----
> 3970.8
> one-7 1 1024 1 -b----
> 4052.7
> one-8 3 1024 1 --p---
> 2246.7
>
> cadlab:/srv/cloud/one # xm vcpu-list
> Name ID VCPU CPU State Time(s) CPU
> Affinity
> Domain-0 0 0 6 r-- 203985.6 6
> Domain-0 0 1 - --p 1.7 7
> Domain-0 0 2 - --p 1.6 any cpu
> Domain-0 0 3 - --p 2.3 any cpu
> Domain-0 0 4 - --p 1.3 any cpu
> Domain-0 0 5 - --p 1.2 any cpu
> Domain-0 0 6 - --p 1.5 any cpu
> Domain-0 0 7 - --p 1.7 any cpu
> one-5 2 0 2 -b- 10241.9 2
> one-6 4 0 4 -b- 3970.8 4
> one-7 1 0 5 -b- 4052.7 5
> one-8 3 0 3 --- 2246.7 3
>
>
> But when I assign 2 VCPUs to Dom0, it gives me following error: ( by
> (dom0-cpus 2) in xend-config.sxp )
> cadlab:/srv/cloud/one # xm list
> Error: Unable to connect to xend: Connection refused. Is xend running?
What version of Xen? What version of Linux? Have you tried 'xl' instead?
>
> I want to pin Dom0 to 2 VCPUs. When I do that by providing (dom0-cpus 0 )
> and pinning 2 of the cores to 2 VCPUs ( by xm vcpu-pin), it doesn't seem to
> use the other core.
>
> Also, My system is Intel i7 950, which is quad core, but it shows 8 CPUs
> probably because of hyperthreading. How should I disable it?
>
> *
> ----------------------------
> Thanks & Regards
> Mohit Dhingra
> +919611190435*
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Xen-devel] Query regarding Xen - Assigning more than 1 VCPUs to Dom0
2012-03-16 15:47 ` Konrad Rzeszutek Wilk
@ 2012-03-27 9:12 ` Mohit Dhingra
0 siblings, 0 replies; 3+ messages in thread
From: Mohit Dhingra @ 2012-03-27 9:12 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk; +Cc: xen-devel, xen-users
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Xen 4.0,
Yes, it worked using xl commands. thanks a lot.
Mohit
**
On 16 March 2012 21:17, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>wrote:
> On Thu, Mar 08, 2012 at 07:16:25PM +0530, Mohit Dhingra wrote:
> > *Hi Xen-users,*
> >
> > I have a doubt regarding assigning VCPUs to Dom0 and DomUs, Please give
> me
> > some pointers to sort them out.
> >
> > 1. I have assigned one VCPU to Dom0 ( by (dom0-cpus 1) in xend-config.sxp
> > ), it works fine.
> > cadlab:/srv/cloud/one # xm list
> > Name ID Mem VCPUs State
> > Time(s)
> > Domain-0 0 3964 1 r-----
> > 203993.1
> > one-5 2 1024 1 -b----
> > 10241.9
> > one-6 4 1024 1 -b----
> > 3970.8
> > one-7 1 1024 1 -b----
> > 4052.7
> > one-8 3 1024 1 --p---
> > 2246.7
> >
> > cadlab:/srv/cloud/one # xm vcpu-list
> > Name ID VCPU CPU State Time(s) CPU
> > Affinity
> > Domain-0 0 0 6 r-- 203985.6 6
> > Domain-0 0 1 - --p 1.7 7
> > Domain-0 0 2 - --p 1.6 any
> cpu
> > Domain-0 0 3 - --p 2.3 any
> cpu
> > Domain-0 0 4 - --p 1.3 any
> cpu
> > Domain-0 0 5 - --p 1.2 any
> cpu
> > Domain-0 0 6 - --p 1.5 any
> cpu
> > Domain-0 0 7 - --p 1.7 any
> cpu
> > one-5 2 0 2 -b- 10241.9 2
> > one-6 4 0 4 -b- 3970.8 4
> > one-7 1 0 5 -b- 4052.7 5
> > one-8 3 0 3 --- 2246.7 3
> >
> >
> > But when I assign 2 VCPUs to Dom0, it gives me following error: ( by
> > (dom0-cpus 2) in xend-config.sxp )
> > cadlab:/srv/cloud/one # xm list
> > Error: Unable to connect to xend: Connection refused. Is xend running?
>
> What version of Xen? What version of Linux? Have you tried 'xl' instead?
> >
> > I want to pin Dom0 to 2 VCPUs. When I do that by providing (dom0-cpus 0 )
> > and pinning 2 of the cores to 2 VCPUs ( by xm vcpu-pin), it doesn't seem
> to
> > use the other core.
> >
> > Also, My system is Intel i7 950, which is quad core, but it shows 8 CPUs
> > probably because of hyperthreading. How should I disable it?
>
> >
> > *
> > ----------------------------
> > Thanks & Regards
> > Mohit Dhingra
> >
>
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xen.org
> > http://lists.xen.org/xen-devel
>
>
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_______________________________________________
Xen-users mailing list
Xen-users@lists.xen.org
http://lists.xen.org/xen-users
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2012-03-08 13:46 Query regarding Xen - Assigning more than 1 VCPUs to Dom0 Mohit Dhingra
2012-03-16 15:47 ` Konrad Rzeszutek Wilk
2012-03-27 9:12 ` [Xen-devel] " Mohit Dhingra
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