[ovs-dev] OVS scaling

[Stephen Hemminger]

Try using perf to look at where system is spending it's time.

On Wed, Apr 10, 2013 at 3:55 PM, SDN learn <sdn.learn at gmail.com> wrote:
> Hi,
>
> I'm running OVS-1.4 release on a low frequency x86 machine. I see that
> performance doesn't seem to scale linearly from 1 to 2 to 4 cores.
>
> I have three PC setup: PC1 is generating netperf traffic, PC2 runs OVS, PC3
> is terminating traffic. OVS is bridging between two ethernet ports.
>
> The datapath uses RCU locking mechanism which is quite efficient. What could
> be other areas where there is contention when running OVS on multi-core
> machine.
>
> Thank you,
> Marty!
> PS: Would upgrading to a later version help?
>
>
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