[openstack-dev] [neutron][rootwrap] Performance considerations, sudo?
iwamoto at valinux.co.jp
Thu Mar 6 06:57:51 UTC 2014
At Wed, 05 Mar 2014 15:42:54 +0100,
Miguel Angel Ajo wrote:
> 3) I also find 10 minutes a long time to setup 192 networks/basic tenant
> structures, I wonder if that time could be reduced by conversion
> of system process calls into system library calls (I know we don't have
> libraries for iproute, iptables?, and many other things... but it's a
> problem that's probably worth looking at.)
$ sudo ip netns exec qfoobar /bin/echo
Network namespace switching costs almost as much as a rootwrap
Execution coalesceing is not enough in this case and we would need to
change how Neutron issues commands, IMO.
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