Hi Jeffrey,
I would recommend using tap interfaces (create tap) with 1024 rx/tx descriptors
and gso turned on.
That will be much faster than host interfaces.
Jerome
De : <vpp-dev@lists.fd.io> au nom de xu cai <jeffrey...@gmail.com>
Date : jeudi 2 janvier 2020 à 22:14
À : "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>
Objet : [vpp-dev] extreme low throughput when connecting two docker container
on a vm.
hi there,
i am quite new to VPP, just follow up the wiki guidance, and setup a VPP
instance, and connect two docker container to the VPP instance and configure a
bridge in VPP instance for these two docker container,
then i run iperf on the docker container and see
root@94bf13822d8e:/# iperf -c 10.10.10.3 -t 600 -i 10
------------------------------------------------------------
Client connecting to 10.10.10.3, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 10.10.10.2 port 40628 connected with 10.10.10.3 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 8.25 MBytes 6.92 Mbits/sec
[ 3] 10.0-20.0 sec 9.00 MBytes 7.55 Mbits/sec
[ 3] 20.0-30.0 sec 8.75 MBytes 7.34 Mbits/sec
the way, i connect the container and vpp is through veth pair.
vpp# show inte
Name Idx State MTU (L3/IP4/IP6/MPLS)
Counter Count
host-veth1000 4 up 9000/0/0/0 rx packets
517153
rx bytes
900265110
tx packets
427351
tx bytes
30077622
drops
104
host-veth2000 3 up 9000/0/0/0 rx packets
427351
rx bytes
30077622
tx packets
517049
tx bytes
900260742
tx-error
62
local0 0 down 0/0/0/0
vpp#
vpp# sh bridge-domain 2 detail
BD-ID Index BSN Age(min) Learning U-Forwrd UU-Flood Flooding
ARP-Term arp-ufwd BVI-Intf
2 2 0 off on on flood on
off off N/A
Interface If-idx ISN SHG BVI TxFlood
VLAN-Tag-Rewrite
host-veth1000 4 5 0 - * none
host-veth2000 3 5 0 - * none
vpp#
if i connect the containers through other method, i see much much higher
throughput. i don't know how to debug this, could anybody give some guidance ?
i think i missed something fundamental. more important, what's the right way
to connect containers through vpp ? thanks
--
- jeffrey
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