Open Stack

Thanks for reply,

Following is my guest xml file.

I am using Openstack JUNO and it use  OVS.

<interface type='bridge'>
      <mac address='fa:16:3e:cd:2a:a4'/>
      <source bridge='qbrdd55b834-f8'/>
      <target dev='tapdd55b834-f8'/>
      <model type='virtio'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
    </interface>


Following is TOP command on guest machine, at this point i am getting
ping breaks

top - 16:10:30 up 20:46,  1 user,  load average: 4.63, 4.41, 3.60
Tasks: 165 total,   6 running, 159 sleeping,   0 stopped,   0 zombie
%Cpu0  : 15.1 us, 12.3 sy,  0.0 ni, 60.9 id,  0.0 wa,  0.0 hi,  0.3 si, 11.4 st
%Cpu1  : 22.9 us, 17.2 sy,  0.0 ni, 51.4 id,  0.0 wa,  0.0 hi,  0.3 si,  8.2 st
%Cpu2  : 28.8 us, 22.4 sy,  0.0 ni, 47.5 id,  0.0 wa,  0.0 hi,  1.0 si,  0.3 st
%Cpu3  : 16.6 us, 15.0 sy,  0.0 ni, 66.4 id,  0.0 wa,  0.0 hi,  0.3 si,  1.7 st
%Cpu4  :  9.8 us, 11.8 sy,  0.0 ni,  0.0 id, 75.4 wa,  0.0 hi,  0.3 si,  2.6 st
%Cpu5  :  7.6 us,  6.1 sy,  0.0 ni, 81.4 id,  0.0 wa,  0.0 hi,  4.2 si,  0.8 st
%Cpu6  :  8.1 us,  7.4 sy,  0.0 ni, 83.0 id,  0.0 wa,  0.0 hi,  1.4 si,  0.0 st
%Cpu7  : 17.8 us, 17.8 sy,  0.0 ni, 64.1 id,  0.0 wa,  0.0 hi,  0.3 si,  0.0 st
KiB Mem :  8175332 total,  4630124 free,   653284 used,  2891924 buff/cache
KiB Swap:        0 total,        0 free,        0 used.  7131540 avail Mem


On Thu, Dec 17, 2015 at 11:06 AM, Vahric Muhtaryan <vahric at doruk.net.tr> wrote:
> Hello ,
>
> Cool !  Todays I am testing to but not such way just only KVM.
>
> Wonder 2/3 things ;
>
> 1) Are you using virtio?
> <model type='virtio¹/>
>
>
> 2) is your vm saturating %100 of cpu inside guest ?
>
> 3) Using OVS or bridge ?
>
> Regards
> Vahric Muhtaryan
>
> On 17/12/15 17:41, "Satish Patel" <satish.txt at gmail.com> wrote:
>
>>I am doing some testing on Openstack VM network performance. following
>>i am doing
>>
>>Comute node: 8 CPU / 32GB mem
>>VM instance: 8vCPU / 8GB mem
>>
>>when i am running heavy load application, immediate my ping started
>>breaking for VM.. but at same time if i ping Compute Host, its working
>>fine without any packet loss.
>>
>>I have disabled GSO/TSO setting on eth0 but still same result.  i have
>>notice when it reach 250mbps my ping start breaking...
>>
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>