[ovs-discuss] [dpdk-dev] DPDK with vhostuser - Issue in Testing with DPDK-Pktgen
keith.wiles at intel.com
Fri Feb 26 17:43:02 UTC 2016
>Dear Przemek, Sean & Sugesh,
>It would be great if get your valuable inputs for the below listed issue.
>We have setup DPDK with vhostuser in AllinOne setup on following software
>Distribution: Ubuntu 14.04
>OVS Version: 2.4.0
>In our Openstack OVS-DPDK set up, we are spawning 2 instance on same host
>with Ubuntu and running DPDK-pktgen in one of the VM and measuring traffic
>between VMs of same host.
>VMs spec are 8GB of memory and 4 core, we are using one port for pktgen
>Please fine the VM huge page setting as well,
>Hugepagesize: 2048 kB
>Please find the below command we are using,
>./app/app/$RTE_TARGET/pktgen -c 0f -n 3 --proc-type auto --socket-mem 256
>-b 0000:00:03.0 -- -P -m "[1-3].0"
>Regardless of the cores whatever we are passing here(-m "[1-3].0"), the
>traffic is sending via only one core, remaining 2 cores are idle.
I verified on my machine in the host userspace that all three lcores were sending packets. Could it be something with the VM not scheduling the other cores for some reason?
>We have added specific property as well to the images we are using,
>hw:vif_multiqueue_enabled=true à Flavor property
>hw_vif_mutliqueue_enabled=true à Image property
>Still we got the same issue on the application.
>. . . . .
>** Dev Info (rte_virtio_pmd:0) **
> max_vfs : 0 min_rx_bufsize : 64 max_rx_pktlen : 9728
>max_rx_queues : 1 max_tx_queues: 1
>. . . . .
>Kindly suggest us something on this regard if we need to tune anything on
>Openstack end or in pktgen application.
>Thanks & Regards
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