Re: [Xen-devel] Unable to set dom0 vcpu to 1

["Pablo Montesinos" <pablomontesinos@xxxxxxxxx>]

Actually, in our machine, no matter what I write in
/etc/xen/xend-config.sxp, dom0 alaways uses the 32 cpus.

On 6/8/06, Apparao, Padmashree K <padmashree.k.apparao@xxxxxxxxx> wrote:
> I think it should too, but I ended up doing this to achieve what I needed.
> ( only 1 vcpu for dom0)
>
>
>
> -          Padma
>
> -
>
>
>
>  ________________________________
>
>
> From: Subrahmanian, Raj [mailto:raj.subrahmanian@xxxxxxxxxx]
>  Sent: Thursday, June 08, 2006 2:16 PM
>  To: Apparao, Padmashree K; Carb, Brian A; xen-devel@xxxxxxxxxxxxxxxxxxx
>  Cc: McAfee, Tommie M; Krysan, Susan; Puthiyaparambil, Aravindh; Vessey,
> Bruce A
>
>  Subject: RE: [Xen-devel] Unable to set dom0 vcpu to 1
>
>
>
>
>
>
>
> Padma,
>
> Shouldn't the xm vcpu-set work regardless of the dom0-cpus value?
>
> Raj
>
>
>  ________________________________
>
>
> From: Apparao, Padmashree K [mailto:padmashree.k.apparao@xxxxxxxxx]
>  Sent: Thursday, June 08, 2006 5:03 PM
>  To: Carb, Brian A; xen-devel@xxxxxxxxxxxxxxxxxxx
>  Cc: McAfee, Tommie M; Krysan, Susan; Puthiyaparambil, Aravindh;
> Subrahmanian, Raj; Vessey, Bruce A
>  Subject: RE: [Xen-devel] Unable to set dom0 vcpu to 1
>
> Set (dom-cpus=1) in  etc/xen/xend-config.sxp.
>
>
>
> -          Padma
>
> -
>
>
>
>
>
>  ________________________________
>
>
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of
> Carb, Brian A
>  Sent: Thursday, June 08, 2006 1:12 PM
>  To: xen-devel@xxxxxxxxxxxxxxxxxxx
>  Cc: McAfee, Tommie M; Krysan,Susan; Puthiyaparambil,Aravindh;
> Subrahmanian,Raj; Vessey,Bruce A; Carb, Brian A
>  Subject: [Xen-devel] Unable to set dom0 vcpu to 1
>
>
>
> Running xen-unstable changeset 10269 on a Unisys ES7000/one, x86_64, 16
> procs, 16 GB RAM under SLES 10 RC1.
>
> At startup, dom0-cpus is set to 0 (the default) in the xend-config.sxp file,
> and dom0 uses all 16 cpus. 'xm top' shows 16 procs, 'xm list' shows dom0
> using 16 cpus, and 'xm vcpu-list' shows 16 cpus assigned to dom0.
>
> When we try to reduce the procs for dom0 to 1 using 'xm vcpu-set 0 1', the
> number of procs, as shown by /proc/cpuinfo, reduces to 9. 'xm list' shows
> dom0 using 9 procs, and 'xm vcpu-list' shows that procs 1-7 have been
> released, while procs 0 and 8 through 15 are still assigned. Nothing is
> shown on the serial port.
>
> Can anyone shed some light on why the rest of the procs might not be
> released? Thanks.
>
> The following is output from 'xm list' and 'xm vcpu-list':
>
> m0075:~ # xm list
>  Name                              ID Mem(MiB) VCPUs State
> Time(s)
>  Domain-0                           0    15912    16 r-----
>   849.3
>  m0075:~ # xm vcpu-list
>  Name                              ID  VCPU  CPU  State
> Time(s)  CPU Affinity
>  Domain-0                           0     0    0   -b-
> 438.1  any cpu
>  Domain-0                           0     1    1   -b-
>  4.0  any cpu
>  Domain-0                           0     2    2   -b-
>  5.4  any cpu
>  Domain-0                           0     3    3   -b-
>  4.5  any cpu
>  Domain-0                           0     4    4   -b-
>  8.4  any cpu
>  Domain-0                           0     5    5   -b-
>  6.1  any cpu
>  Domain-0                           0     6    6   -b-
>  5.0  any cpu
>  Domain-0                           0     7    7   -b-
>  4.5  any cpu
>  Domain-0                           0     8    8   -b-
> 30.3  any cpu
>  Domain-0                           0     9    9   -b-
> 14.6  any cpu
>  Domain-0                           0    10   10   r--
> 29.1  any cpu
>  Domain-0                           0    11   11   -b-
> 15.1  any cpu
>  Domain-0                           0    12   12   -b-
> 71.6  any cpu
>  Domain-0                           0    13   13   -b-
> 177.0  any cpu
>  Domain-0                           0    14   14   -b-
> 14.5  any cpu
>  Domain-0                           0    15   15   -b-
> 21.9  any cpu
>
> m0075:~ # xm vcpu-set 0 1
>  m0075:~ # xm list
>  Name                              ID Mem(MiB) VCPUs State
> Time(s)
>  Domain-0                           0    15912     9 r-----
>   853.2
>  m0075:~ # xm vcpu-list
>  Name                              ID  VCPU  CPU  State
> Time(s)  CPU Affinity
>  Domain-0                           0     0    0   -b-
> 439.3  any cpu
>  Domain-0                           0     1    -   --p
>  4.0  any cpu
>  Domain-0                           0     2    -   --p
>  5.6  any cpu
>  Domain-0                           0     3    -   --p
>  4.5  any cpu
>  Domain-0                           0     4    -   --p
>  8.4  any cpu
>  Domain-0                           0     5    -   --p
>  6.1  any cpu
>  Domain-0                           0     6    -   --p
>  5.0  any cpu
>  Domain-0                           0     7    -   --p
>  4.5  any cpu
>  Domain-0                           0     8    8   -b-
> 30.3  any cpu
>  Domain-0                           0     9    9   -b-
> 15.0  any cpu
>  Domain-0                           0    10   10   r--
> 29.3  any cpu
>  Domain-0                           0    11   11   -b-
> 15.2  any cpu
>  Domain-0                           0    12   12   -b-
> 72.7  any cpu
>  Domain-0                           0    13   13   -b-
> 177.5  any cpu
>  Domain-0                           0    14   14   -b-
> 14.5  any cpu
>  Domain-0                           0    15   15   -b-
> 22.0  any cpu
>
> brian carb
>  unisys corporation - malvern, pa
>  brian.carb@xxxxxxxxxx
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel