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RE: [Xen-devel] Setting dom0-cpus to 0 doesn't use all cpus as documente

To: "Christopher G. Stach II" <cgs@xxxxxxxxx>
Subject: RE: [Xen-devel] Setting dom0-cpus to 0 doesn't use all cpus as documented
From: "Carb, Brian A" <Brian.Carb@xxxxxxxxxx>
Date: Tue, 9 May 2006 11:51:19 -0400
Cc: "Puthiyaparambil, Aravindh" <aravindh.puthiyaparambil@xxxxxxxxxx>, Xen-devel@xxxxxxxxxxxxxxxxxxx, "Krysan, Susan" <KRYSANS@xxxxxxxxxx>, "Subrahmanian, Raj" <raj.subrahmanian@xxxxxxxxxx>, "Vessey, Bruce A" <Bruce.Vessey@xxxxxxxxxx>
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Thread-topic: [Xen-devel] Setting dom0-cpus to 0 doesn't use all cpus as documented
Setting dom0-cpus to "" does not work either.  

brian carb (610-648-2437 or N2 385-2437)
unisys cmp technology lab
malvern, pa
brian.carb@xxxxxxxxxx

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-----Original Message-----
From: Christopher G. Stach II [mailto:cgs@xxxxxxxxx] 
Sent: Tuesday, May 09, 2006 11:07 AM
To: Carb, Brian A
Cc: Xen-devel@xxxxxxxxxxxxxxxxxxx; Subrahmanian, Raj; Krysan, Susan;
Vessey, Bruce A; Puthiyaparambil, Aravindh
Subject: Re: [Xen-devel] Setting dom0-cpus to 0 doesn't use all cpus as
documented

Carb, Brian A wrote:
> If I edit the xend-config.sxp file, change the value of dom0-cpus to 
> 1, and restart xend, dom0 correctly uses 1 CPUs. If I then change 
> dom0-cpus to 0 and restart xend, dom0 still uses 1 cpu. The only way 
> to have dom0 use 32 cpus again is to either set the value of dom0-cpus

> to 32, or reboot xen.
> 
> Has anyone else seen this behavior?

Try (dom0-cpus "").  I believe that's what I was using before I
dedicated one to dom0.  The comment should probably be updated, though.

--
Christopher G. Stach II

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