maybe this commit:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b69bbddfa136dc53ac319d58bc38b41f8aefffea
veth: add vlan features
The veth device doesn't provide the vlan features,
so TSO for example is disabled and that causes
performance issues when using tagged traffic.
The test topology looks like this:
br0 br1
/ \ / \
vnet veth0.10 ----- veth1.10 vnet
VM VM
The netperf results with current veth driver:
MIGRATED TCP STREAM TEST from 192.168.1.1 ()
port 0 AF_INET to 192.168.1.2 () port 0 AF_INET
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.01 2210.22
Now after applying the proposed patch:
MIGRATED TCP STREAM TEST from 192.168.1.1 ()
port 0 AF_INET to 192.168.1.2 () port 0 AF_INET
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.00 13067.47
Signed-off-by: Flavio Leitner <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
(also note that we could manage vlan with vethX !)
and also, it seem possible to manage qinq (vlan in vlan) through veth
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8d0d21f4053c07714802cbe8b1fe26913ec296cc
could be usefull for Stefan I think.
----- Mail original -----
De: "Dietmar Maurer" <[email protected]>
À: "Alexandre DERUMIER" <[email protected]>
Cc: [email protected]
Envoyé: Mercredi 23 Avril 2014 10:11:34
Objet: RE: [pve-devel] [PATCH] openvswitch hybrid network model implementation
> So, it should be tested ! (now that redhat support docker, maybe they have
> made improvement in veth)
I always wondered why veth is slow. Just compiling new
kernel-3.10.0-121.el7.src.rpm kernel now (for tesing).
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