Could you try again with taps and large rings? create tap rx-ring-size 4096 tx-ring-size 4096 create tap rx-ring-size 4096 tx-ring-size 4096
Configure then the two taps in your namespaces and run iperf again. Hope this helps, Florin > On Mar 7, 2018, at 11:01 AM, Sara Gittlin <sara.gitt...@gmail.com> wrote: > > Thank you Hau > i tested w iperf got similar results. I cannot find iperf2. Anyway ns to ns > directly without vpp is perfect 50 gbps throughput and 10us latency. Tested w > iperf3. This is very bothering since we decided to go w vpp instead of ovs > Thanks in advance > -Sara > > > > בתאריך 6 במרץ 2018 20:00, "Hao Fu (haof)" <h...@cisco.com > <mailto:h...@cisco.com>> כתב: > I encountered the similar issue before. Try replacing iperf3 with iperf2. > > Hao > > On 3/6/18, 8:34 AM, "vpp-dev@lists.fd.io <mailto:vpp-dev@lists.fd.io> on > behalf of Sara Gittlin" <vpp-dev@lists.fd.io <mailto:vpp-dev@lists.fd.io> on > behalf of sara.gitt...@gmail.com <mailto:sara.gitt...@gmail.com>> wrote: > > Also the throughput is very poor - iperf3 TCP ~ 2Mbps > what is wrong here ? > > On Tue, Mar 6, 2018 at 6:20 PM, Sara Gittlin <sara.gitt...@gmail.com > <mailto:sara.gitt...@gmail.com>> wrote: > > Hi, > > i have 2 namespaces connected with veth-pairs to vpp - see setup here > > > [https://wiki.fd.io/view/VPP/Configure_VPP_As_A_Router_Between_Namespaces > <https://wiki.fd.io/view/VPP/Configure_VPP_As_A_Router_Between_Namespaces>] > > > > i see very big latency ~10ms when i ping between the 2 namespaces > > i expected to see latency in the order of 10's us > > ----------------------------------- > > 4 bytes from 172.16.2.2 <http://172.16.2.2/>: icmp_seq=1005 ttl=63 > time=11.5 ms > > 64 bytes from 172.16.2.2 <http://172.16.2.2/>: icmp_seq=1006 ttl=63 > time=9.60 ms > > 64 bytes from 172.16.2.2 <http://172.16.2.2/>: icmp_seq=1007 ttl=63 > time=7.55 ms > > 64 bytes from 172.16.2.2 <http://172.16.2.2/>: icmp_seq=1008 ttl=63 > time=5.52 ms > > 64 bytes from 172.16.2.2 <http://172.16.2.2/>: icmp_seq=1009 ttl=63 > time=9.60 ms > > 64 bytes from 172.16.2.2 <http://172.16.2.2/>: icmp_seq=1010 ttl=63 > time=17.6 ms > > 64 bytes from 172.16.2.2 <http://172.16.2.2/>: icmp_seq=1011 ttl=63 > time=15.5 ms > > 64 bytes from 172.16.2.2 <http://172.16.2.2/>: icmp_seq=1012 ttl=63 > time=13.6 ms > > 64 bytes from 172.16.2.2 <http://172.16.2.2/>: icmp_seq=1013 ttl=63 > time=11.6 ms > > 64 bytes from 172.16.2.2 <http://172.16.2.2/>: icmp_seq=1014 ttl=63 > time=9.54 ms > > 64 bytes from 172.16.2.2 <http://172.16.2.2/>: icmp_seq=1015 ttl=63 > time=7.67 ms > > 64 bytes from 172.16.2.2 <http://172.16.2.2/>: icmp_seq=1016 ttl=63 > time=5.56 ms > > 64 bytes from 172.16.2.2 <http://172.16.2.2/>: icmp_seq=1017 ttl=63 > time=3.44 ms > > > > ------------------------------------ > > > > Who can assist ? > > > > Thanks in advance > > -Sara > > > > > > > > > > > > > > > >
