Re: [Openstack-operators] improve perfomance Neutron VXLAN

2015-01-23 Thread Pedro Sousa
Hi, I think you're right, the nic is not offloading because testing the instances I see a process ksoftirqd/0 with high CPU on compute hosts. Doing iperf on baremetal I don't see this process with high CPU. Is my assumption right? Thanks On Wed, Jan 21, 2015 at 3:59 PM, Robert van Leeuwen < r

Re: [Openstack-operators] improve perfomance Neutron VXLAN

2015-01-23 Thread Pedro Sousa
Hi Mathieu, I use VXLAN so I don't think VLAN splinters workaround applies, I also have GRO enabled. Thanks Pedro Sousa On Fri, Jan 23, 2015 at 1:00 PM, Mathieu Rohon wrote: > Hi pedro, > > This thread might interest you : > > http://lists.openstack.org/pipermail/openstack-dev/2015-January/05

Re: [Openstack-operators] improve perfomance Neutron VXLAN

2015-01-23 Thread Mathieu Rohon
Hi pedro, This thread might interest you : http://lists.openstack.org/pipermail/openstack-dev/2015-January/054953.html Mathieu On Fri, Jan 23, 2015 at 12:07 PM, Pedro Sousa wrote: > Hi Slawek, > > I've tried with 8950/9000 but I had problems communicating with external > hosts from the VM.

Re: [Openstack-operators] improve perfomance Neutron VXLAN

2015-01-23 Thread Pedro Sousa
Hi Slawek, I've tried with 8950/9000 but I had problems communicating with external hosts from the VM. Regards, Pedro Sousa On Thu, Jan 22, 2015 at 9:36 PM, Sławek Kapłoński wrote: > As I wrote earlier, for me it is best to have 9000 on hosts and 8950 on > instances. Then I have full speed

Re: [Openstack-operators] improve perfomance Neutron VXLAN

2015-01-22 Thread Sławek Kapłoński
As I wrote earlier, for me it is best to have 9000 on hosts and 8950 on instances. Then I have full speed between instances. With lower mtu on instances I have about 2-2.5 Gbps and I saw that vhost-net process on host is using 100 of 1 cpu core. I'm using libvirt with kvm - maybe You are using

Re: [Openstack-operators] improve perfomance Neutron VXLAN

2015-01-22 Thread Sławek Kapłoński
Hello, In dnsmasq file in neutron will be ok. It will then force option 26 on vm. You can also manually change it on vms to tests. Slawek Kaplonski W dniu 22.01.2015 o 17:06, Pedro Sousa pisze: Hi Slawek, I'll test this, did you change the mtu on dnsmasq file in /etc/neutron/? Or do you need

Re: [Openstack-operators] improve perfomance Neutron VXLAN

2015-01-21 Thread Robert van Leeuwen
> Hi Robert, > >how do I check that? I would take a look at the Spec sheet of the nic. Since it is a pretty recent thing it probably is not supported unless you specifically shopped for a card with support... Cheers, Robert ___ OpenStack-operators mail

Re: [Openstack-operators] improve perfomance Neutron VXLAN

2015-01-21 Thread Pedro Sousa
Hi Robert, how do I check that? Thanks, Pedro Sousa On Wed, Jan 21, 2015 at 3:59 PM, Robert van Leeuwen < robert.vanleeu...@spilgames.com> wrote: > >is there a way to improve network performance on my instances with > VXLAN? > >I changed the MTU on physical interfaces to 1600, still performanc

Re: [Openstack-operators] improve perfomance Neutron VXLAN

2015-01-21 Thread Robert van Leeuwen
>is there a way to improve network performance on my instances with VXLAN? >I changed the MTU on physical interfaces to 1600, still performance it's lower >than in baremetal hosts: Do you have VXLAN hardware offloading on the NIC? I think you are hitting the maximum speed you can do encapsulation

[Openstack-operators] improve perfomance Neutron VXLAN

2015-01-21 Thread Pedro Sousa
Hi all, is there a way to improve network performance on my instances with VXLAN? I changed the MTU on physical interfaces to 1600, still performance it's lower than in baremetal hosts: *On Instance:* [root@vms6-149a71e8-1f2a-4d6e-bba4-e70dfa42b289 ~]# iperf3 -s -