Public bug reported:
We have a Juno based openstack cloud build using Packstack. Controller
node, network node and computes nodes each are running on a bare metal
servers with LBaaS agent running on the network node.
We are noticing a low throughput of 1G - 1.2G with HAproxy on a 10G
link.
We are measuring the throughput using iperf tool for the HAProxy. We
have client on one compute node and the servers on different compute
nodes which are linked via 10G . We changed the MTU size from 1400 to
9000 but received the same throughput.
client ---- 10G ----> HAproxy ----- 10G ---> servers
root@instance-00000098:/# iperf -c 20.1.1.200 -i 1 -t 5 -M 1400
WARNING: attempt to set TCP maximum segment size to 1400, but got 536
------------------------------------------------------------
Client connecting to 20.1.1.200, TCP port 5001
TCP window size: 22.0 KByte (default)
------------------------------------------------------------
[ 3] local 20.1.1.108 port 54438 connected with 20.1.1.200 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 120 MBytes 1.01 Gbits/sec
[ 3] 1.0- 2.0 sec 140 MBytes 1.17 Gbits/sec
[ 3] 2.0- 3.0 sec 138 MBytes 1.16 Gbits/sec
[ 3] 3.0- 4.0 sec 135 MBytes 1.13 Gbits/sec
Please let me know if we can tweet any parameter to increase the
throughput.
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1498288
Title:
Low throughput with haproxy
Status in neutron:
New
Bug description:
We have a Juno based openstack cloud build using Packstack. Controller
node, network node and computes nodes each are running on a bare metal
servers with LBaaS agent running on the network node.
We are noticing a low throughput of 1G - 1.2G with HAproxy on a 10G
link.
We are measuring the throughput using iperf tool for the HAProxy. We
have client on one compute node and the servers on different compute
nodes which are linked via 10G . We changed the MTU size from 1400 to
9000 but received the same throughput.
client ---- 10G ----> HAproxy ----- 10G ---> servers
root@instance-00000098:/# iperf -c 20.1.1.200 -i 1 -t 5 -M 1400
WARNING: attempt to set TCP maximum segment size to 1400, but got 536
------------------------------------------------------------
Client connecting to 20.1.1.200, TCP port 5001
TCP window size: 22.0 KByte (default)
------------------------------------------------------------
[ 3] local 20.1.1.108 port 54438 connected with 20.1.1.200 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 120 MBytes 1.01 Gbits/sec
[ 3] 1.0- 2.0 sec 140 MBytes 1.17 Gbits/sec
[ 3] 2.0- 3.0 sec 138 MBytes 1.16 Gbits/sec
[ 3] 3.0- 4.0 sec 135 MBytes 1.13 Gbits/sec
Please let me know if we can tweet any parameter to increase the
throughput.
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https://bugs.launchpad.net/neutron/+bug/1498288/+subscriptions
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