“show run” will probably show a very small vector size. If so, look at src/vlib/unix/input.c:linux_epoll_input(…). 10ms is exactly the epoll_pwait timeout value.
D. From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Sara Gittlin Sent: Wednesday, March 7, 2018 2:02 PM To: vpp-dev@lists.fd.io Cc: vpp-dev@lists.fd.io Subject: Re: [vpp-dev] VPP As A Router Between Namespaces - 10ms latency 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] > > 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 > > >
