Open Stack

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?
>>> 
>>> _______________________________________________
>>> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>>> Post to     : openstack at lists.openstack.org
>>> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>> 
>> --
>> Arne Wiebalck
>> CERN IT
>> 

--
Arne Wiebalck
CERN IT