RE: [Xen-devel] [PATCH] Fix xmexamples about cpus

[Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>]

Fri, 9 May 2008 13:20:37 +0800, "Zhang, Jingke" wrote:

>Masaki Kanno wrote:
>> Hi,
>> 
>> This patch fixes xmexamples about example of cpus.
>> 
>> Signed-off-by: Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>
>> 
>> Best regards,
>>  Kan
>
>Hi Kanno,
>    We have tried cpus="^1" in the past. For we want to drop only CPU1
>no matter how many CPUs are on the machine. The result shows: CPU1 can
>still be used by HVM and all the VCPU's affinity are "any cpu". 
>    So, do you think this setting is available? Or do we need some more
>comments on this? Thanks!

Hi Zhang,

I think that a purpose to set "cpus" is to confine CPUs which VCPUs run 
to a CPU or some CPUs.  If there are many CPUs on a machine, I think 
that we should avoid the setting for performance. 

Best regards,
 Kan



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