[RFE] Improve SG performance as VMs/containers scale on compute node
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
neutron |
Fix Released
|
Wishlist
|
Kevin Benton |
Bug Description
Please refer to the comments in the following bug:
https:/
In which it was suggested to handle improving SG programming performance as a RFE bug.
To Summarize the problem, when there are about 160 VMs, the neutron-ovs-agent takes more than 2 seconds per VM to program the iptables rules mainly because of the inefficiency in the iptables programming code.
#VMs = 0, provision 10 new VMs on compute node
cumulative time in _modify_rules : Before 0.34 After: 0.20
#VMs = 10, provision 10 new VMs on compute node
cumulative time in _modify_rules : Before 1.68 After: 0.94
#VMs = 20, provision 10 new VMs on compute node
cumulative time in _modify_rules : Before 4.27 After: 2.12
#VMs = 40, provision 10 new VMs on compute node
cumulative time in _modify_rules : Before 11.8 After: 6.44
#VMs = 80, provision 10 new VMs on compute node
cumulative time in _modify_rules : Before 20.2 After: 13.6
#VMs = 160, provision 10 new VMs on compute node
cumulative time in _modify_rules : Before 50 After: 23.2 <<<<< more than 2 seconds per VM !!!
description: | updated |
Changed in neutron: | |
assignee: | nobody → Kevin Benton (kevinbenton) |
status: | New → In Progress |
tags: | added: loadimpact sg-fw |
Changed in neutron: | |
importance: | Undecided → Medium |
Changed in neutron: | |
status: | In Progress → Triaged |
tags: | added: kilo-backport-potential liberty-backport-potential |
Changed in neutron: | |
status: | Triaged → In Progress |
Changed in neutron: | |
importance: | Medium → Wishlist |
Changed in neutron: | |
milestone: | none → mitaka-1 |
Changed in neutron: | |
milestone: | mitaka-1 → mitaka-2 |
Changed in neutron: | |
milestone: | mitaka-2 → mitaka-3 |
summary: |
- Improve SG performance as VMs/containers scale on compute node + [RFE] Improve SG performance as VMs/containers scale on compute node |
Changed in neutron: | |
milestone: | mitaka-3 → mitaka-1 |
I am all in when it comes to improving performance, but I am not clear to what you're proposing. Please elaborate further...but yeah..if we can have SG performance kick ass, let's!