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<p class="MsoNormal"><a name="_MailEndCompose"><span style="color:#1F497D">Hi Tomas,<o:p></o:p></span></a></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I would expect bigger bandwidth I was in contact with SamYaple from the #openstack IRC channel who got 40Gigs/sec in his lab. The main difference between our environments:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Me: <o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-family:Symbol;color:#1F497D"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">DPDK: NO<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-family:Symbol;color:#1F497D"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">SR-IOV: NO<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-family:Symbol;color:#1F497D"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">OS: Centos 7.3 (kernel 3.10)
<o:p></o:p></span></p>
<p class="MsoListParagraph"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">SamYaple: <o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-family:Symbol;color:#1F497D"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">DPDK: YES<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-family:Symbol;color:#1F497D"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">SR-IOV: YES<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-family:Symbol;color:#1F497D"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">OS: Ubuntu (kernel 4.1)
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Do you think the kernel may have a huge impact in the ovs performance?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thank you very much<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="color:#1F497D">Manuel<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Tomáš Vondra [mailto:vondra@homeatcloud.cz]
<br>
<b>Sent:</b> Tuesday, April 18, 2017 10:12 PM<br>
<b>To:</b> Manuel Sopena Ballesteros<br>
<b>Cc:</b> openstack@lists.openstack.org<br>
<b>Subject:</b> RE: [Openstack] poor bandwidth across instances running on same host<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="CS" style="color:#1F497D">Sorry to shatter you expectations, but those numbers are perfectly OK.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="CS" style="color:#1F497D">I was testing on HPE DL380 gen9 with
</span><span lang="CS"><a href="https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+E5-2630+v3+%40+2.40GHz&id=2386&cpuCount=2" target="_blank">Intel Xeon E5-2630v3</a> and I got these speeds between two KVM VMs on the same host using netperf<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="CS" style="color:#1F497D">28186 Mb/s with linux bridge<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="CS" style="color:#1F497D">18552 Mb/s with OpenVSwitch with the full Neutron setup with iptables.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="CS" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="CS" style="color:#1F497D">How much would you like to achieve? I got 38686 on dev lo on the physical server and 47894 on a VM. You could turn to OVS with DPDK as the data path, bu I doubt it will do much. SR-IOV might, but I
never tried any of this. I’m satisfied with the speed for my purposes.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="CS" style="color:#1F497D">Tomas from Homeatcloud<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="CS" style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span lang="CS" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="CS" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Manuel Sopena Ballesteros [<a href="mailto:manuel.sb@garvan.org.au">mailto:manuel.sb@garvan.org.au</a>]
<br>
<b>Sent:</b> Tuesday, April 18, 2017 9:11 AM<br>
<b>To:</b> <a href="mailto:openstack@lists.openstack.org">openstack@lists.openstack.org</a><br>
<b>Subject:</b> [Openstack] poor bandwidth across instances running on same host<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="CS"><o:p> </o:p></span></p>
<p class="MsoNormal">Hi all,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">I created 2 instances on the same compute node and tested the bandwidth between them, surprisingly iperf tells me I got 16.1Gbits/sec only. Then I changed the firewall from hybrid iptables to ovs, the bandwidth improved a little bit to
17.5Gbits/sec but still far from expected. <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><b><u>Ml2_config.ini config file</u></b><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">[root@nova-compute ~]# docker exec -t neutron_openvswitch_agent vi /var/lib/kolla/config_files/ml2_config.ini</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">network_vlan_ranges =</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> </span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">[ml2_type_flat]</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">flat_networks = physnet1</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> </span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">[ml2_type_vxlan]</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">vni_ranges = 1:1000</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">vxlan_group = 239.1.1.1</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> </span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">[securitygroup]</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">firewall_driver = openvswitch</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">#firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> </span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">[agent]</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">tunnel_types = vxlan</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">l2_population = true</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">arp_responder = true</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> </span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">[ovs]</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">bridge_mappings = physnet1:br-ex</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">ovsdb_connection = tcp:129.94.72.54:6640</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">local_ip = 10.1.0.12</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><b><u>ovs config</u></b><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">[root@nova-compute ~]# docker exec openvswitch_vswitchd ovs-vsctl show</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">306d62c4-8e35-45e0-838e-53ebe81f1d06</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Bridge br-ex</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Controller "tcp:127.0.0.1:6633"</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> is_connected: true</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> fail_mode: secure</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Port "eno50336512"</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Interface "eno50336512"</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Port phy-br-ex</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Interface phy-br-ex</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> type: patch</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> options: {peer=int-br-ex}</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Port br-ex</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Interface br-ex</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> type: internal</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Bridge br-tun</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Controller "tcp:127.0.0.1:6633"</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> is_connected: true</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> fail_mode: secure</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Port patch-int</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Interface patch-int</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> type: patch</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> options: {peer=patch-tun}</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Port "vxlan-0a01000b"</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Interface "vxlan-0a01000b"</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> type: vxlan</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> options: {df_default="true", in_key=flow, local_ip="10.1.0.12", out_key=flow, remote_ip="10.1.0.11"}</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Port br-tun</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Interface br-tun</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> type: internal</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Bridge br-int</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Controller "tcp:127.0.0.1:6633"</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> is_connected: true</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> fail_mode: secure</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Port int-br-ex</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Interface int-br-ex</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> type: patch</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> options: {peer=phy-br-ex}</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Port "tapa26ee521-3b"</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> tag: 2</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Interface "tapa26ee521-3b"</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Port patch-tun</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Interface patch-tun</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> type: patch</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> options: {peer=patch-int}</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Port br-int</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Interface br-int</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> type: internal</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Port "tap1f76851b-ea"</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> tag: 2</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> Interface "tap1f76851b-ea"</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> </span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> </span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> </span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<p class="MsoNormal"><b><u>Iperf results</u></b><o:p></o:p></p>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black"> </span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">[centos@centos7 ~]$ iperf -c 192.168.1.105</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">------------------------------------------------------------</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">Client connecting to 192.168.1.105, TCP port 5001</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">TCP window size: 45.0 KByte (default)</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">------------------------------------------------------------</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">[ 3] local 192.168.1.101 port 48522 connected with 192.168.1.105 port 5001</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">[ ID] Interval Transfer Bandwidth</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<pre><span style="font-size:10.0pt;font-family:"Courier New";color:black">[ 3] 0.0-10.0 sec 20.3 GBytes 17.5 Gbits/sec</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></pre>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><b><u>Ovs info</u></b><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">[root@nova-compute ~]# docker exec openvswitch_vswitchd modinfo openvswitch</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">filename: /lib/modules/3.10.0-514.el7.x86_64/kernel/net/openvswitch/openvswitch.ko</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">license: GPL</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">description: Open vSwitch switching datapath</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">rhelversion: 7.3</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">srcversion: B31AE95554C9D9A0067F935</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">depends: nf_conntrack,nf_nat,libcrc32c,nf_nat_ipv6,nf_nat_ipv4,nf_defrag_ipv6</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">intree: Y</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">vermagic: 3.10.0-514.el7.x86_64 SMP mod_unload modversions</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">signer: CentOS Linux kernel signing key</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">sig_key: D4:88:63:A7:C1:6F:CC:27:41:23:E6:29:8F:74:F0:57:AF:19:FC:54</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black">sig_hashalgo: sha256</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">As far as I know the communication is VM <span style="font-family:Wingdings">
ß</span>OVS<span style="font-family:Wingdings">à</span>VM and the linux bridge is not involved.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">What could be throttling the network traffic and what can I do to improve performance?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Thank you very much<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><b><span style="color:#333333;background:white">Manuel Sopena Ballesteros </span></b><span style="color:#333333;background:white">|<b> </b>Big data Engineer</span><span style="color:#333333"><br>
<b><span style="background:white">Garvan Institute of Medical Research </span></b><br>
<span style="background:white">The Kinghorn Cancer Centre,<b> </b>370 Victoria Street, Darlinghurst, NSW 2010</span><br>
<b><span style="background:white">T:</span></b><span style="background:white"> + 61 (0)2 9355 5760 | <b>F:</b> +61 (0)2 9295 8507 | <b>E:</b> </span></span><span style="color:black"><a href="mailto:manuel.sb@garvan.org.au">manuel.sb@garvan.org.au</a></span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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