On 04/18/2017 01:11 AM, Manuel Sopena Ballesteros wrote:
Hi all,
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.
Just curious, did you constrain the two instances so they were running on the
same NUMA node of that host? If not you're going to hit inter-socket NUMA overhead.
Chris
_______________________________________________
Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
Post to : openstack@lists.openstack.org
Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
