Re: [Xen-users] dom0 got load of 80

On Wed, Jan 28, 2009 at 9:05 PM, Ryan Burke <burke@xxxxxxxxxxxxxxxxx> wrote:
>> Here's what I use on xend-config.sxp
>>
>> (dom0-cpus 1)
>> (dom0-min-mem 256)
>>
>> and on grub's menu.lst
>>
>>         kernel /xen.gz-2.6.18-128.el5 dom0_mem=512M dom0_vcpus_pin
>>
>
> Sorry for the thread jack, this will be short...
>
> This is the first I've heard of the "dom0_vcpus_pin" option. So that is
> the same as
>  xm vcpu-set 0 1
>  xm vcpu-pin 0 0 0
> where Dom0 will be pinned to CPU0 at boot?

It's the same as the vcpu-pin command line if you only assign one CPU to dom0.
The vcpu-set line is the equivalent of  (dom0-cpus 1) on xend-config.sxp

> What version of Xen did that
> option make its appearance?
>

Not sure. According to http://wiki.xensource.com/xenwiki/XenBooting ,
it's available since 3.0. I've been using it on RHEL 5's stock xen
(which is based on xen 3.1.2), and it works.

> If so, that would be nice since I've been pinning Dom0 to CPU0 in rc.local
> and that always seemed weird to pin after it had booted.

Yeah, that's what I did as well before I read the documentation :D

Regards,

Fajar

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