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
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