Public bug reported:
Hello,
Recently i've found out that linux-htb is hardcoded to QoS section in
neutron-agent's code. For a small workloads it's enough but in case there is
200+ interfaces this makes overall performance to suffer due to high irq. I
guess we could try to use mqprio in order to balance tc's flows over multiple
queues but is it supported scenario for neutron-agent ? I'm really not sure
that DPDK able to help in this case.
Conditions:
OpenStack Zed
Openvswitch (vanilla, not a DPDK)
400 interfaces with QoS on each
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2052906
Title:
OpenVSwitch HTB QoS not efficient for a lot of interfaces
Status in neutron:
New
Bug description:
Hello,
Recently i've found out that linux-htb is hardcoded to QoS section in
neutron-agent's code. For a small workloads it's enough but in case there is
200+ interfaces this makes overall performance to suffer due to high irq. I
guess we could try to use mqprio in order to balance tc's flows over multiple
queues but is it supported scenario for neutron-agent ? I'm really not sure
that DPDK able to help in this case.
Conditions:
OpenStack Zed
Openvswitch (vanilla, not a DPDK)
400 interfaces with QoS on each
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