I think your environment is miss-configured, as I don't experience these
performance issues with Havana + Ubuntu 12.04 + OVS 1.10.2 + GRE.
I have two instances running on two compute nodes connected using GRE tunnels.
The instances belong to the same tenant so traffic between them uses the GRE
tunnel between the two compute nodes.
Only the traffic destined for outside is sent to the qrouter running on the
dedicated network node using the GRE tunnel established between the compute
node and the network node.
The topology is "Per-Tenant Router with Private Networks" and basically,
the setup looks like this:
Network node Public IP x.x.x.x
Data IP (GRE ) 10.0.20.1
Compute node1 Data IP (GRE) 10.0.20.2
Instance1 tenant IP 10.0.0.2
Compute node2 Data IP (GRE) 10.0.20.3
Instance1 tenant IP 10.0.0.4
The compute nodes as well as the networking node connect to the switch
at 1 Gbps.
I ran iperf between the two instances and got 450 Mbps:
[root@host-10-0-0-2 ~]# iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 10.0.0.2 port 5001 connected with 10.0.0.4 port 53122
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-120.0 sec 6.29 GBytes 450 Mbits/sec
root@host-10-0-0-4 ~]# iperf -c 10.0.0.2 -i 10 -t 120 -w 128K
------------------------------------------------------------
Client connecting to 10.0.0.2, TCP port 5001
TCP window size: 216 KByte (WARNING: requested 128 KByte)
------------------------------------------------------------
[ 3] local 10.0.0.4 port 53122 connected with 10.0.0.2 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 540 MBytes 453 Mbits/sec
[ 3] 10.0-20.0 sec 537 MBytes 451 Mbits/sec
[ 3] 20.0-30.0 sec 525 MBytes 440 Mbits/sec
[ 3] 30.0-40.0 sec 525 MBytes 440 Mbits/sec
[ 3] 40.0-50.0 sec 541 MBytes 454 Mbits/sec
[ 3] 50.0-60.0 sec 539 MBytes 452 Mbits/sec
[ 3] 60.0-70.0 sec 541 MBytes 454 Mbits/sec
[ 3] 70.0-80.0 sec 540 MBytes 453 Mbits/sec
[ 3] 80.0-90.0 sec 540 MBytes 453 Mbits/sec
[ 3] 90.0-100.0 sec 535 MBytes 449 Mbits/sec
[ 3] 100.0-110.0 sec 539 MBytes 452 Mbits/sec
[ 3] 110.0-120.0 sec 542 MBytes 454 Mbits/sec
[ 3] 0.0-120.0 sec 6.29 GBytes 450 Mbits/sec
I also ran iperf between the two compute nodes using the same physical link
(the GRE 10.0.20.X segment) and I got close to wire speed (941 Mbps):
root@compute1:~# iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 10.0.20.2 port 5001 connected with 10.0.20.3 port 58015
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-120.0 sec 13.1 GBytes 941 Mbits/sec
root@compute2:~# iperf -c 10.0.20.2 -i 10 -t 120 -w 128K
------------------------------------------------------------
Client connecting to 10.0.20.2, TCP port 5001
TCP window size: 256 KByte (WARNING: requested 128 KByte)
------------------------------------------------------------
[ 3] local 10.0.20.3 port 58015 connected with 10.0.20.2 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 1.10 GBytes 941 Mbits/sec
[ 3] 10.0-20.0 sec 1.10 GBytes 941 Mbits/sec
[ 3] 20.0-30.0 sec 1.10 GBytes 941 Mbits/sec
[ 3] 30.0-40.0 sec 1.10 GBytes 941 Mbits/sec
[ 3] 40.0-50.0 sec 1.10 GBytes 941 Mbits/sec
[ 3] 50.0-60.0 sec 1.10 GBytes 941 Mbits/sec
[ 3] 60.0-70.0 sec 1.10 GBytes 941 Mbits/sec
[ 3] 70.0-80.0 sec 1.10 GBytes 941 Mbits/sec
[ 3] 80.0-90.0 sec 1.10 GBytes 941 Mbits/sec
[ 3] 90.0-100.0 sec 1.10 GBytes 941 Mbits/sec
[ 3] 100.0-110.0 sec 1.10 GBytes 941 Mbits/sec
[ 3] 110.0-120.0 sec 1.10 GBytes 941 Mbits/sec
[ 3] 0.0-120.0 sec 13.1 GBytes 941 Mbits/sec
>From instance 2, I downloaded a large ISO (4.92 MB/s):
[root@host-10-0-0-4 ~]# wget
http://centos.arcticnetwork.ca/6.4/isos/x86_64/CentOS-6.4-x86_64-minimal.iso
--2013-11-20 11:31:40--
http://centos.arcticnetwork.ca/6.4/isos/x86_64/CentOS-6.4-x86_64-minimal.iso
Resolving centos.arcticnetwork.ca... 64.59.140.91
Connecting to centos.arcticnetwork.ca|64.59.140.91|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 358959104 (342M) [application/octet-stream]
Saving to: `CentOS-6.4-x86_64-minimal.iso'
100%[===================================================================================================================>]
358,959,104 5.40M/s in 70s
2013-11-20 11:32:49 (4.92 MB/s) - `CentOS-6.4-x86_64-minimal.iso' saved
[358959104/358959104]
>From instance 2, I cloned the nova git ( 5.01 MiB/s):
[root@host-10-0-0-4 ~]# git clone https://github.com/openstack/nova.git
Cloning into 'nova'...
remote: Counting objects: 221982, done.
remote: Compressing objects: 100% (62488/62488), done.
remote: Total 221982 (delta 177528), reused 195110 (delta 152622)
Receiving objects: 100% (221982/221982), 128.48 MiB | 5.01 MiB/s, done.
Resolving deltas: 100% (177528/177528), done.
>From instance 2, I ran speedtest:
yum -y install python-pip
pip-python install speedtest-cli
speedtest-cli --server 2565 --share
and the speedtest results were:
Testing download speed........................................
Download: 90.15 Mbit/s
Testing upload speed..................................................
Upload: 43.87 Mbit/s
In conclusion, check again and you might find the issue.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1252900
Title:
Directional network performance issues with Neutron + OpenvSwitch
To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/1252900/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
