[ovs-dev] Why are iperf3 udp packets out of order in OVS DPDK case?

Stokes, Ian ian.stokes at intel.com
Tue Aug 27 10:02:07 UTC 2019



On 8/27/2019 9:35 AM, Yi Yang (杨燚)-云服务集团 wrote:
> Hi, all
> 
>   
> 
> I’m doing experiments with OVS and OVS DPDK, only one bridge is there,
> ports and flows are same for OVS and OVS DPDK, in OVS case, everything works
> well, but in OVS DPDK case, iperf udp performance data are very poor, udp
> packets are out of order, I have limited MTU and send buffer by –l1410 –
> M1410, anybody knows why and how to fix it? Thank you in advance.
> 

Hi,

can you provide more detail of you deployment? OVS version, DPDK 
version, configuration commands for ports/flows etc.

Thanks
Ian

> 
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