[openstack-dev] [neutron] Neutron scaling datapoints?

Neil Jerram Neil.Jerram at metaswitch.com
Wed Apr 8 16:27:16 UTC 2015

My team is working on experiments looking at how far the Neutron server
will scale, with increasing numbers of compute hosts and VMs.  Does
anyone have any datapoints on this that they can share?  Or any clever

I'm already aware of the following ones:

 118 compute hosts
 80 Neutron server processes (10 per core on each of 8 cores, on the
 controller node)
 27,000 VMs - but only after disabling all security/iptables

 1000 hosts
 5000 VMs
 3 Neutron servers (via a load balancer)
 But doesn't describe if any specific configuration is needed for this.
 (Other than using OpenContrail! :-))

Many thanks!

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