On Mon, Jan 12, 2015 at 08:20:08AM -0800, Ben Pfaff wrote:
> On Mon, Jan 12, 2015 at 11:23:40AM +1100, Troy Lea wrote:
> > I've installed Open vSwitch on Ubuntu 14.04.1 and have tested it
> > successfully. I've been able to create switches with up to 1000 ports and I
> > can poll them via SNMP using MRTG.
> >
> > I've been creating these ports with a simple "for 1..1000 bash script".
> >
> > However it does seem though once I start creating more than 800 ports there
> > is an impact on the Ubuntu system. This is noticeable in the time it takes
> > to create each port when the script runs. It's like every port causes the
> > system to take a little longer, kind of exponential.
> >
> > Creating 500 ports takes about 5 minutes.
>
> You'll get better performance if you add more than one port in a single
> ovs-vsctl execution.
For example:
ovs-vsctl add-br br0
cmds=; for i in {1..5000}; do cmds+=" -- add-port br0 p$i"; done
time ovs-vsctl $cmds
takes about 7 seconds.
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