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Actually no, I don't think that's right.  When pinning is enabled each vCPU will 
be affined to a single host CPU.  What is showing below is what I would expect 
if the instance was using non-dedicated CPUs.

To the original poster, you should be using

'hw:cpu_policy': 'dedicated'

in your flavor extra-specs to enable CPU pinning.  And you should enable the 
NUMATopologyFilter scheduler filter.

Chris



On 12/15/2015 09:23 AM, Arne Wiebalck wrote:
> The pinning seems to have done what you asked for, but you probably
> want to confine your vCPUs to NUMA nodes.
>
> Cheers,
>   Arne
>
>
>> On 15 Dec 2015, at 16:12, Satish Patel <satish.txt at gmail.com> wrote:
>>
>> Sorry forgot to reply all :)
>>
>> This is what i am getting
>>
>> [root at compute-1 ~]# virsh vcpupin instance-00000043
>> VCPU: CPU Affinity
>> ----------------------------------
>>    0: 2-3,6-7
>>    1: 2-3,6-7
>>
>>
>> Following numa info
>>
>> [root at compute-1 ~]# numactl --hardware
>> available: 2 nodes (0-1)
>> node 0 cpus: 0 3 5 6
>> node 0 size: 2047 MB
>> node 0 free: 270 MB
>> node 1 cpus: 1 2 4 7
>> node 1 size: 2038 MB
>> node 1 free: 329 MB
>> node distances:
>> node   0   1
>>   0:  10  20
>>   1:  20  10
>>
>> On Tue, Dec 15, 2015 at 8:36 AM, Arne Wiebalck <Arne.Wiebalck at cern.ch> wrote:
>>> The pinning we set up goes indeed into the <cputune> block:
>>>
>>> —>
>>> <vcpu placement='static'>32</vcpu>
>>>   <cputune>
>>>     <shares>32768</shares>
>>>     <vcpupin vcpu='0' cpuset='0-7,16-23'/>
>>>     <vcpupin vcpu='1' cpuset='0-7,16-23'/>
>>>     …
>>> <—
>>>
>>> What does “virsh vcpupin <domain>” give for your instance?
>>>
>>> Cheers,
>>> Arne
>>>
>>>
>>>> On 15 Dec 2015, at 13:02, Satish Patel <satish.txt at gmail.com> wrote:
>>>>
>>>> I am running JUNO version with qemu-kvm-ev-2.1.2-23.el7_1.9.1.x86_64
>>>> on CentOS7.1
>>>>
>>>> I am trying to configure CPU pinning because my application is cpu
>>>> hungry. this is what i did.
>>>>
>>>> in /etc/nova/nova.conf
>>>>
>>>> vcpu_pin_set=2,3,6,7
>>>>
>>>>
>>>> I have created aggregated host with pinning=true and created flavor
>>>> with pinning, after that when i start VM on Host following this i can
>>>> see in guest
>>>>
>>>> ...
>>>> ...
>>>> <vcpu placement='static' cpuset='2-3,6-7'>2</vcpu>
>>>> ...
>>>> ...
>>>>
>>>> But i am not seeing any <cputune> info.
>>>>
>>>> Just want to make sure does my pinning working correctly or something
>>>> is wrong. How do i verify my pinning config is correct?
>>>>
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>>>
>>> --
>>> Arne Wiebalck
>>> CERN IT
>>>
>
> --
> Arne Wiebalck
> CERN IT
>
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