[ovs-discuss] 40 Gbit Traffic Test Problem

[mehmetyaren]

Hi,

We want to send 40 Gbit traffic with t-rex traffic generator, we are using 40 Gbit supported DPDK NIC, but when we generate traffic as 40 Gbit, it can not transmit all traffics just 10 Gbit traffic is transmitted by DPDK NIC. We are using Open vSwitch 2.10.0 version and DPDK 17.11.2 version.
 We made some configuration to increasing core number for dpdk ports with below commands;

ovs-vsctl set interface dpdk0 options:n_rxq=4  other_config:pmd-rxq-affinity="0:0,1:1,2:2,3:3"
ovs-vsctl set interface dpdk1 options:n_rxq=4  other_config:pmd-rxq-affinity="0:4,1:5,2:6,3:7"

And we have seen all pmd capacities are not used by dpdk ports as seen below results;

 sudo ovs-appctl dpif-netdev/pmd-rxq-show pmd thread numa_id 0 core_id 0:

  isolated : true
  port: dpdk0             queue-id:  0  pmd usage: 19 %
pmd thread numa_id 1 core_id 1:
  isolated : true
  port: dpdk0             queue-id:  1  pmd usage: 20 %
pmd thread numa_id 0 core_id 2:
  isolated : true
  port: dpdk0             queue-id:  2  pmd usage: 20 %
pmd thread numa_id 1 core_id 3:
  isolated : true
  port: dpdk0             queue-id:  3  pmd usage: 21 %
pmd thread numa_id 0 core_id 4:
  isolated : true
  port: dpdk1             queue-id:  0  pmd usage: 13 %
pmd thread numa_id 1 core_id 5:
  isolated : true
  port: dpdk1             queue-id:  1  pmd usage: 13 %
pmd thread numa_id 0 core_id 6:
  isolated : true
  port: dpdk1             queue-id:  2  pmd usage: 13 %
pmd thread numa_id 1 core_id 7:
  isolated : true
  port: dpdk1             queue-id:  3  pmd usage: 15 %


Can anyone help me ?

Mehmet.



Sent from Mail for Windows 10

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.openvswitch.org/pipermail/ovs-discuss/attachments/20181023/5a6cc35f/attachment.html>